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From jruss...@apache.org
Subject [7/7] incubator-impala git commit: Update Impala docs for 2.10 release
Date Mon, 13 Nov 2017 23:26:57 GMT
Update Impala docs for 2.10 release

Commit hash = 40ec6d0080638efaf3260672ab54ea4674896c5e

Several new HTML files for this release.

Change-Id: Idea1f417d404b99dad9fb8255849867f1e67e767
Reviewed-on: http://gerrit.cloudera.org:8080/8511
Reviewed-by: Michael Brown <mikeb@cloudera.com>
Tested-by: John Russell <jrussell@cloudera.com>


Project: http://git-wip-us.apache.org/repos/asf/incubator-impala/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-impala/commit/ca9005be
Tree: http://git-wip-us.apache.org/repos/asf/incubator-impala/tree/ca9005be
Diff: http://git-wip-us.apache.org/repos/asf/incubator-impala/diff/ca9005be

Branch: refs/heads/asf-site
Commit: ca9005be57eb3151d6842dd62e740ca323014742
Parents: f79399f
Author: John Russell <jrussell@cloudera.com>
Authored: Thu Nov 9 14:21:39 2017 -0800
Committer: John Russell <jrussell@cloudera.com>
Committed: Mon Nov 13 23:26:01 2017 +0000

----------------------------------------------------------------------
 docs/build/html/index.html                      |    2 +-
 docs/build/html/topics/impala_adls.html         |    9 +-
 docs/build/html/topics/impala_alter_table.html  |   71 +-
 docs/build/html/topics/impala_array.html        |    2 +-
 .../html/topics/impala_buffer_pool_limit.html   |   71 +
 .../build/html/topics/impala_compute_stats.html |   32 +-
 .../html/topics/impala_config_options.html      |    5 +-
 docs/build/html/topics/impala_connecting.html   |    9 +-
 docs/build/html/topics/impala_create_table.html |   28 +-
 .../html/topics/impala_datetime_functions.html  |  310 +++-
 .../impala_default_spillable_buffer_size.html   |   87 ++
 .../impala_exec_single_node_rows_threshold.html |    2 +-
 docs/build/html/topics/impala_fixed_issues.html | 1452 +++++++++---------
 docs/build/html/topics/impala_hbase.html        |    9 +
 docs/build/html/topics/impala_hints.html        |   10 +-
 .../topics/impala_incompatible_changes.html     |  144 +-
 docs/build/html/topics/impala_joins.html        |    2 +-
 docs/build/html/topics/impala_known_issues.html |  290 ++--
 docs/build/html/topics/impala_kudu.html         |    8 +
 docs/build/html/topics/impala_logging.html      |    3 +-
 docs/build/html/topics/impala_map.html          |    2 +-
 .../html/topics/impala_math_functions.html      |  165 +-
 docs/build/html/topics/impala_max_row_size.html |  221 +++
 .../impala_min_spillable_buffer_size.html       |   87 ++
 docs/build/html/topics/impala_new_features.html |  135 +-
 docs/build/html/topics/impala_partitioning.html |  148 ++
 docs/build/html/topics/impala_perf_joins.html   |   21 +-
 docs/build/html/topics/impala_perf_stats.html   |   40 +-
 .../build/html/topics/impala_query_options.html |    4 +-
 .../html/topics/impala_reserved_words.html      |    2 +-
 docs/build/html/topics/impala_scalability.html  |  259 +++-
 docs/build/html/topics/impala_select.html       |   19 +-
 .../html/topics/impala_shell_commands.html      |   24 +
 .../topics/impala_shell_running_commands.html   |   69 +-
 docs/build/html/topics/impala_ssl.html          |   71 +
 .../html/topics/impala_string_functions.html    |  270 ++++
 docs/build/html/topics/impala_struct.html       |    2 +-
 docs/build/html/topics/impala_subqueries.html   |   16 +
 docs/build/html/topics/impala_tablesample.html  |  554 +++++++
 docs/build/html/topics/impala_upgrading.html    |    4 +-
 docs/build/html/topics/impala_views.html        |   16 +
 docs/build/impala-2.10.pdf                      |  Bin 0 -> 3847517 bytes
 impala-docs.html                                |   17 +-
 43 files changed, 3572 insertions(+), 1120 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-impala/blob/ca9005be/docs/build/html/index.html
----------------------------------------------------------------------
diff --git a/docs/build/html/index.html b/docs/build/html/index.html
index abf79ec..829524c 100644
--- a/docs/build/html/index.html
+++ b/docs/build/html/index.html
@@ -1,3 +1,3 @@
 <!DOCTYPE html
   SYSTEM "about:legacy-compat">
-<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2017"><meta name="DC.rights.owner" content="(C) Copyright 2017"><meta name="DC.Type" content="map"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="impala"><link rel="stylesheet" type="text/css" href="commonltr.css"><title>Apache Impala (incubating) Guide</title></head><body id="impala"><h1 class="title topictitle1">Apache Impala (incubating) Guide</h1><nav><ul class="map"><li class="topicref"><a href="topics/impala_intro.html">Introducing Apache Impala (incubating)</a></li><li class="topicref"><a href="topics/impala_concepts.html">Concepts and Architecture</a><ul><li class="topicref"><a href="topics/impala_components.html">Components</a></li><li class="topicref"><a href="topics/impala_development.html">Developing Applications</a></li><li class="topicref"><a href="topics/impala_hadoop.html">Role in the 
 Hadoop Ecosystem</a></li></ul></li><li class="topicref"><a href="topics/impala_planning.html">Deployment Planning</a><ul><li class="topicref"><a href="topics/impala_prereqs.html#prereqs">Requirements</a></li><li class="topicref"><a href="topics/impala_cluster_sizing.html">Cluster Sizing</a></li><li class="topicref"><a href="topics/impala_schema_design.html">Designing Schemas</a></li></ul></li><li class="topicref"><a href="topics/impala_install.html#install">Installing Impala</a></li><li class="topicref"><a href="topics/impala_config.html">Managing Impala</a><ul><li class="topicref"><a href="topics/impala_config_performance.html">Post-Installation Configuration for Impala</a></li><li class="topicref"><a href="topics/impala_odbc.html">Configuring Impala to Work with ODBC</a></li><li class="topicref"><a href="topics/impala_jdbc.html">Configuring Impala to Work with JDBC</a></li></ul></li><li class="topicref"><a href="topics/impala_upgrading.html">Upgrading Impala</a></li><li class="top
 icref"><a href="topics/impala_processes.html">Starting Impala</a><ul><li class="topicref"><a href="topics/impala_config_options.html">Modifying Impala Startup Options</a></li></ul></li><li class="topicref"><a href="topics/impala_tutorial.html">Tutorials</a></li><li class="topicref"><a href="topics/impala_admin.html">Administration</a><ul><li class="topicref"><a href="topics/impala_admission.html">Admission Control and Query Queuing</a></li><li class="topicref"><a href="topics/impala_resource_management.html">Resource Management for Impala</a></li><li class="topicref"><a href="topics/impala_timeouts.html">Setting Timeouts</a></li><li class="topicref"><a href="topics/impala_proxy.html">Load-Balancing Proxy for HA</a></li><li class="topicref"><a href="topics/impala_disk_space.html">Managing Disk Space</a></li></ul></li><li class="topicref"><a href="topics/impala_security.html">Impala Security</a><ul><li class="topicref"><a href="topics/impala_security_guidelines.html">Security Guidelin
 es for Impala</a></li><li class="topicref"><a href="topics/impala_security_files.html">Securing Impala Data and Log Files</a></li><li class="topicref"><a href="topics/impala_security_install.html">Installation Considerations for Impala Security</a></li><li class="topicref"><a href="topics/impala_security_metastore.html">Securing the Hive Metastore Database</a></li><li class="topicref"><a href="topics/impala_security_webui.html">Securing the Impala Web User Interface</a></li><li class="topicref"><a href="topics/impala_ssl.html">Configuring TLS/SSL for Impala</a></li><li class="topicref"><a href="topics/impala_authorization.html">Enabling Sentry Authorization for Impala</a></li><li class="topicref"><a href="topics/impala_authentication.html">Impala Authentication</a><ul><li class="topicref"><a href="topics/impala_kerberos.html">Enabling Kerberos Authentication for Impala</a></li><li class="topicref"><a href="topics/impala_ldap.html">Enabling LDAP Authentication for Impala</a></li><li 
 class="topicref"><a href="topics/impala_mixed_security.html">Using Multiple Authentication Methods with Impala</a></li><li class="topicref"><a href="topics/impala_delegation.html">Configuring Impala Delegation for Hue and BI Tools</a></li></ul></li><li class="topicref"><a href="topics/impala_auditing.html">Auditing</a></li><li class="topicref"><a href="topics/impala_lineage.html">Viewing Lineage Info</a></li></ul></li><li class="topicref"><a href="topics/impala_langref.html">SQL Reference</a><ul><li class="topicref"><a href="topics/impala_comments.html">Comments</a></li><li class="topicref"><a href="topics/impala_datatypes.html">Data Types</a><ul><li class="topicref"><a href="topics/impala_array.html">ARRAY Complex Type (Impala 2.3 or higher only)</a></li><li class="topicref"><a href="topics/impala_bigint.html">BIGINT</a></li><li class="topicref"><a href="topics/impala_boolean.html">BOOLEAN</a></li><li class="topicref"><a href="topics/impala_char.html">CHAR</a></li><li class="topicr
 ef"><a href="topics/impala_decimal.html">DECIMAL</a></li><li class="topicref"><a href="topics/impala_double.html">DOUBLE</a></li><li class="topicref"><a href="topics/impala_float.html">FLOAT</a></li><li class="topicref"><a href="topics/impala_int.html">INT</a></li><li class="topicref"><a href="topics/impala_map.html">MAP Complex Type (Impala 2.3 or higher only)</a></li><li class="topicref"><a href="topics/impala_real.html">REAL</a></li><li class="topicref"><a href="topics/impala_smallint.html">SMALLINT</a></li><li class="topicref"><a href="topics/impala_string.html">STRING</a></li><li class="topicref"><a href="topics/impala_struct.html">STRUCT Complex Type (Impala 2.3 or higher only)</a></li><li class="topicref"><a href="topics/impala_timestamp.html">TIMESTAMP</a></li><li class="topicref"><a href="topics/impala_tinyint.html">TINYINT</a></li><li class="topicref"><a href="topics/impala_varchar.html">VARCHAR</a></li><li class="topicref"><a href="topics/impala_complex_types.html">Comple
 x Types (Impala 2.3 or higher only)</a></li></ul></li><li class="topicref"><a href="topics/impala_literals.html">Literals</a></li><li class="topicref"><a href="topics/impala_operators.html">SQL Operators</a></li><li class="topicref"><a href="topics/impala_schema_objects.html">Schema Objects and Object Names</a><ul><li class="topicref"><a href="topics/impala_aliases.html">Aliases</a></li><li class="topicref"><a href="topics/impala_databases.html">Databases</a></li><li class="topicref"><a href="topics/impala_functions_overview.html">Functions</a></li><li class="topicref"><a href="topics/impala_identifiers.html">Identifiers</a></li><li class="topicref"><a href="topics/impala_tables.html">Tables</a></li><li class="topicref"><a href="topics/impala_views.html">Views</a></li></ul></li><li class="topicref"><a href="topics/impala_langref_sql.html">SQL Statements</a><ul><li class="topicref"><a href="topics/impala_ddl.html">DDL Statements</a></li><li class="topicref"><a href="topics/impala_dml
 .html">DML Statements</a></li><li class="topicref"><a href="topics/impala_alter_table.html">ALTER TABLE</a></li><li class="topicref"><a href="topics/impala_alter_view.html">ALTER VIEW</a></li><li class="topicref"><a href="topics/impala_compute_stats.html">COMPUTE STATS</a></li><li class="topicref"><a href="topics/impala_create_database.html">CREATE DATABASE</a></li><li class="topicref"><a href="topics/impala_create_function.html">CREATE FUNCTION</a></li><li class="topicref"><a href="topics/impala_create_role.html">CREATE ROLE</a></li><li class="topicref"><a href="topics/impala_create_table.html">CREATE TABLE</a></li><li class="topicref"><a href="topics/impala_create_view.html">CREATE VIEW</a></li><li class="topicref"><a href="topics/impala_delete.html">DELETE</a></li><li class="topicref"><a href="topics/impala_describe.html">DESCRIBE</a></li><li class="topicref"><a href="topics/impala_drop_database.html">DROP DATABASE</a></li><li class="topicref"><a href="topics/impala_drop_function
 .html">DROP FUNCTION</a></li><li class="topicref"><a href="topics/impala_drop_role.html">DROP ROLE</a></li><li class="topicref"><a href="topics/impala_drop_stats.html">DROP STATS</a></li><li class="topicref"><a href="topics/impala_drop_table.html">DROP TABLE</a></li><li class="topicref"><a href="topics/impala_drop_view.html">DROP VIEW</a></li><li class="topicref"><a href="topics/impala_explain.html">EXPLAIN</a></li><li class="topicref"><a href="topics/impala_grant.html">GRANT</a></li><li class="topicref"><a href="topics/impala_insert.html">INSERT</a></li><li class="topicref"><a href="topics/impala_invalidate_metadata.html">INVALIDATE METADATA</a></li><li class="topicref"><a href="topics/impala_load_data.html">LOAD DATA</a></li><li class="topicref"><a href="topics/impala_refresh.html">REFRESH</a></li><li class="topicref"><a href="topics/impala_revoke.html">REVOKE</a></li><li class="topicref"><a href="topics/impala_select.html">SELECT</a><ul><li class="topicref"><a href="topics/impala
 _joins.html">Joins</a></li><li class="topicref"><a href="topics/impala_order_by.html">ORDER BY Clause</a></li><li class="topicref"><a href="topics/impala_group_by.html">GROUP BY Clause</a></li><li class="topicref"><a href="topics/impala_having.html">HAVING Clause</a></li><li class="topicref"><a href="topics/impala_limit.html">LIMIT Clause</a></li><li class="topicref"><a href="topics/impala_offset.html">OFFSET Clause</a></li><li class="topicref"><a href="topics/impala_union.html">UNION Clause</a></li><li class="topicref"><a href="topics/impala_subqueries.html">Subqueries</a></li><li class="topicref"><a href="topics/impala_with.html">WITH Clause</a></li><li class="topicref"><a href="topics/impala_distinct.html">DISTINCT Operator</a></li><li class="topicref"><a href="topics/impala_hints.html">Hints</a></li></ul></li><li class="topicref"><a href="topics/impala_set.html">SET</a><ul><li class="topicref"><a href="topics/impala_query_options.html">Query Options for the SET Statement</a><ul>
 <li class="topicref"><a href="topics/impala_abort_on_default_limit_exceeded.html">ABORT_ON_DEFAULT_LIMIT_EXCEEDED</a></li><li class="topicref"><a href="topics/impala_abort_on_error.html">ABORT_ON_ERROR</a></li><li class="topicref"><a href="topics/impala_allow_unsupported_formats.html">ALLOW_UNSUPPORTED_FORMATS</a></li><li class="topicref"><a href="topics/impala_appx_count_distinct.html">APPX_COUNT_DISTINCT</a></li><li class="topicref"><a href="topics/impala_batch_size.html">BATCH_SIZE</a></li><li class="topicref"><a href="topics/impala_compression_codec.html">COMPRESSION_CODEC</a></li><li class="topicref"><a href="topics/impala_debug_action.html">DEBUG_ACTION</a></li><li class="topicref"><a href="topics/impala_default_join_distribution_mode.html">DEFAULT_JOIN_DISTRIBUTION_MODE</a></li><li class="topicref"><a href="topics/impala_default_order_by_limit.html">DEFAULT_ORDER_BY_LIMIT</a></li><li class="topicref"><a href="topics/impala_disable_codegen.html">DISABLE_CODEGEN</a></li><li cla
 ss="topicref"><a href="topics/impala_decimal_v2.html">DECIMAL_V2</a></li><li class="topicref"><a href="topics/impala_disable_row_runtime_filtering.html">DISABLE_ROW_RUNTIME_FILTERING</a></li><li class="topicref"><a href="topics/impala_disable_streaming_preaggregations.html">DISABLE_STREAMING_PREAGGREGATIONS</a></li><li class="topicref"><a href="topics/impala_disable_unsafe_spills.html">DISABLE_UNSAFE_SPILLS</a></li><li class="topicref"><a href="topics/impala_exec_single_node_rows_threshold.html">EXEC_SINGLE_NODE_ROWS_THRESHOLD</a></li><li class="topicref"><a href="topics/impala_explain_level.html">EXPLAIN_LEVEL</a></li><li class="topicref"><a href="topics/impala_hbase_cache_blocks.html">HBASE_CACHE_BLOCKS</a></li><li class="topicref"><a href="topics/impala_hbase_caching.html">HBASE_CACHING</a></li><li class="topicref"><a href="topics/impala_live_progress.html">LIVE_PROGRESS</a></li><li class="topicref"><a href="topics/impala_live_summary.html">LIVE_SUMMARY</a></li><li class="topicre
 f"><a href="topics/impala_max_errors.html">MAX_ERRORS</a></li><li class="topicref"><a href="topics/impala_max_io_buffers.html">MAX_IO_BUFFERS</a></li><li class="topicref"><a href="topics/impala_max_scan_range_length.html">MAX_SCAN_RANGE_LENGTH</a></li><li class="topicref"><a href="topics/impala_max_num_runtime_filters.html">MAX_NUM_RUNTIME_FILTERS</a></li><li class="topicref"><a href="topics/impala_mem_limit.html">MEM_LIMIT</a></li><li class="topicref"><a href="topics/impala_mt_dop.html">MT_DOP</a></li><li class="topicref"><a href="topics/impala_num_nodes.html">NUM_NODES</a></li><li class="topicref"><a href="topics/impala_num_scanner_threads.html">NUM_SCANNER_THREADS</a></li><li class="topicref"><a href="topics/impala_optimize_partition_key_scans.html">OPTIMIZE_PARTITION_KEY_SCANS</a></li><li class="topicref"><a href="topics/impala_parquet_compression_codec.html">PARQUET_COMPRESSION_CODEC</a></li><li class="topicref"><a href="topics/impala_parquet_annotate_strings_utf8.html">PARQUET
 _ANNOTATE_STRINGS_UTF8</a></li><li class="topicref"><a href="topics/impala_parquet_fallback_schema_resolution.html">PARQUET_FALLBACK_SCHEMA_RESOLUTION</a></li><li class="topicref"><a href="topics/impala_parquet_file_size.html">PARQUET_FILE_SIZE</a></li><li class="topicref"><a href="topics/impala_prefetch_mode.html">PREFETCH_MODE</a></li><li class="topicref"><a href="topics/impala_query_timeout_s.html">QUERY_TIMEOUT_S</a></li><li class="topicref"><a href="topics/impala_request_pool.html">REQUEST_POOL</a></li><li class="topicref"><a href="topics/impala_replica_preference.html">REPLICA_PREFERENCE</a></li><li class="topicref"><a href="topics/impala_reservation_request_timeout.html">RESERVATION_REQUEST_TIMEOUT</a></li><li class="topicref"><a href="topics/impala_runtime_bloom_filter_size.html">RUNTIME_BLOOM_FILTER_SIZE</a></li><li class="topicref"><a href="topics/impala_runtime_filter_max_size.html">RUNTIME_FILTER_MAX_SIZE</a></li><li class="topicref"><a href="topics/impala_runtime_filter
 _min_size.html">RUNTIME_FILTER_MIN_SIZE</a></li><li class="topicref"><a href="topics/impala_runtime_filter_mode.html">RUNTIME_FILTER_MODE</a></li><li class="topicref"><a href="topics/impala_runtime_filter_wait_time_ms.html">RUNTIME_FILTER_WAIT_TIME_MS</a></li><li class="topicref"><a href="topics/impala_s3_skip_insert_staging.html">S3_SKIP_INSERT_STAGING</a></li><li class="topicref"><a href="topics/impala_scan_node_codegen_threshold.html">SCAN_NODE_CODEGEN_THRESHOLD</a></li><li class="topicref"><a href="topics/impala_scratch_limit.html">SCRATCH_LIMIT</a></li><li class="topicref"><a href="topics/impala_schedule_random_replica.html">SCHEDULE_RANDOM_REPLICA</a></li><li class="topicref"><a href="topics/impala_support_start_over.html">SUPPORT_START_OVER</a></li><li class="topicref"><a href="topics/impala_sync_ddl.html">SYNC_DDL</a></li><li class="topicref"><a href="topics/impala_v_cpu_cores.html">V_CPU_CORES</a></li></ul></li></ul></li><li class="topicref"><a href="topics/impala_show.html
 ">SHOW</a></li><li class="topicref"><a href="topics/impala_truncate_table.html">TRUNCATE TABLE</a></li><li class="topicref"><a href="topics/impala_update.html">UPDATE</a></li><li class="topicref"><a href="topics/impala_upsert.html">UPSERT</a></li><li class="topicref"><a href="topics/impala_use.html">USE</a></li></ul></li><li class="topicref"><a href="topics/impala_functions.html">Built-In Functions</a><ul><li class="topicref"><a href="topics/impala_math_functions.html">Mathematical Functions</a></li><li class="topicref"><a href="topics/impala_bit_functions.html">Bit Functions</a></li><li class="topicref"><a href="topics/impala_conversion_functions.html">Type Conversion Functions</a></li><li class="topicref"><a href="topics/impala_datetime_functions.html">Date and Time Functions</a></li><li class="topicref"><a href="topics/impala_conditional_functions.html">Conditional Functions</a></li><li class="topicref"><a href="topics/impala_string_functions.html">String Functions</a></li><li cl
 ass="topicref"><a href="topics/impala_misc_functions.html">Miscellaneous Functions</a></li><li class="topicref"><a href="topics/impala_aggregate_functions.html">Aggregate Functions</a><ul><li class="topicref"><a href="topics/impala_appx_median.html">APPX_MEDIAN</a></li><li class="topicref"><a href="topics/impala_avg.html">AVG</a></li><li class="topicref"><a href="topics/impala_count.html">COUNT</a></li><li class="topicref"><a href="topics/impala_group_concat.html">GROUP_CONCAT</a></li><li class="topicref"><a href="topics/impala_max.html">MAX</a></li><li class="topicref"><a href="topics/impala_min.html">MIN</a></li><li class="topicref"><a href="topics/impala_ndv.html">NDV</a></li><li class="topicref"><a href="topics/impala_stddev.html">STDDEV, STDDEV_SAMP, STDDEV_POP</a></li><li class="topicref"><a href="topics/impala_sum.html">SUM</a></li><li class="topicref"><a href="topics/impala_variance.html">VARIANCE, VARIANCE_SAMP, VARIANCE_POP, VAR_SAMP, VAR_POP</a></li></ul></li><li class="t
 opicref"><a href="topics/impala_analytic_functions.html">Analytic Functions</a></li><li class="topicref"><a href="topics/impala_udf.html">Impala User-Defined Functions (UDFs)</a></li></ul></li><li class="topicref"><a href="topics/impala_langref_unsupported.html">SQL Differences Between Impala and Hive</a></li><li class="topicref"><a href="topics/impala_porting.html">Porting SQL</a></li></ul></li><li class="topicref"><a href="topics/impala_impala_shell.html">The Impala Shell</a><ul><li class="topicref"><a href="topics/impala_shell_options.html">Configuration Options</a></li><li class="topicref"><a href="topics/impala_connecting.html">Connecting to impalad</a></li><li class="topicref"><a href="topics/impala_shell_running_commands.html">Running Commands and SQL Statements</a></li><li class="topicref"><a href="topics/impala_shell_commands.html">Command Reference</a></li></ul></li><li class="topicref"><a href="topics/impala_performance.html">Performance Tuning</a><ul><li class="topicref"
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 bility Considerations</a></li><li class="topicref"><a href="topics/impala_partitioning.html">Partitioning</a></li><li class="topicref"><a href="topics/impala_file_formats.html">File Formats</a><ul><li class="topicref"><a href="topics/impala_txtfile.html">Text Data Files</a></li><li class="topicref"><a href="topics/impala_parquet.html">Parquet Data Files</a></li><li class="topicref"><a href="topics/impala_avro.html">Avro Data Files</a></li><li class="topicref"><a href="topics/impala_rcfile.html">RCFile Data Files</a></li><li class="topicref"><a href="topics/impala_seqfile.html">SequenceFile Data Files</a></li></ul></li><li class="topicref"><a href="topics/impala_kudu.html">Using Impala to Query Kudu Tables</a></li><li class="topicref"><a href="topics/impala_hbase.html">HBase Tables</a></li><li class="topicref"><a href="topics/impala_s3.html">S3 Tables</a></li><li class="topicref"><a href="topics/impala_adls.html">ADLS Tables</a></li><li class="topicref"><a href="topics/impala_isilon.
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+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2017"><meta name="DC.rights.owner" content="(C) Copyright 2017"><meta name="DC.Type" content="map"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="impala"><link rel="stylesheet" type="text/css" href="commonltr.css"><title>Apache Impala (incubating) Guide</title></head><body id="impala"><h1 class="title topictitle1">Apache Impala (incubating) Guide</h1><nav><ul class="map"><li class="topicref"><a href="topics/impala_intro.html">Introducing Apache Impala (incubating)</a></li><li class="topicref"><a href="topics/impala_concepts.html">Concepts and Architecture</a><ul><li class="topicref"><a href="topics/impala_components.html">Components</a></li><li class="topicref"><a href="topics/impala_development.html">Developing Applications</a></li><li class="topicref"><a href="topics/impala_hadoop.html">Role in the 
 Hadoop Ecosystem</a></li></ul></li><li class="topicref"><a href="topics/impala_planning.html">Deployment Planning</a><ul><li class="topicref"><a href="topics/impala_prereqs.html#prereqs">Requirements</a></li><li class="topicref"><a href="topics/impala_cluster_sizing.html">Cluster Sizing</a></li><li class="topicref"><a href="topics/impala_schema_design.html">Designing Schemas</a></li></ul></li><li class="topicref"><a href="topics/impala_install.html#install">Installing Impala</a></li><li class="topicref"><a href="topics/impala_config.html">Managing Impala</a><ul><li class="topicref"><a href="topics/impala_config_performance.html">Post-Installation Configuration for Impala</a></li><li class="topicref"><a href="topics/impala_odbc.html">Configuring Impala to Work with ODBC</a></li><li class="topicref"><a href="topics/impala_jdbc.html">Configuring Impala to Work with JDBC</a></li></ul></li><li class="topicref"><a href="topics/impala_upgrading.html">Upgrading Impala</a></li><li class="top
 icref"><a href="topics/impala_processes.html">Starting Impala</a><ul><li class="topicref"><a href="topics/impala_config_options.html">Modifying Impala Startup Options</a></li></ul></li><li class="topicref"><a href="topics/impala_tutorial.html">Tutorials</a></li><li class="topicref"><a href="topics/impala_admin.html">Administration</a><ul><li class="topicref"><a href="topics/impala_admission.html">Admission Control and Query Queuing</a></li><li class="topicref"><a href="topics/impala_resource_management.html">Resource Management for Impala</a></li><li class="topicref"><a href="topics/impala_timeouts.html">Setting Timeouts</a></li><li class="topicref"><a href="topics/impala_proxy.html">Load-Balancing Proxy for HA</a></li><li class="topicref"><a href="topics/impala_disk_space.html">Managing Disk Space</a></li></ul></li><li class="topicref"><a href="topics/impala_security.html">Impala Security</a><ul><li class="topicref"><a href="topics/impala_security_guidelines.html">Security Guidelin
 es for Impala</a></li><li class="topicref"><a href="topics/impala_security_files.html">Securing Impala Data and Log Files</a></li><li class="topicref"><a href="topics/impala_security_install.html">Installation Considerations for Impala Security</a></li><li class="topicref"><a href="topics/impala_security_metastore.html">Securing the Hive Metastore Database</a></li><li class="topicref"><a href="topics/impala_security_webui.html">Securing the Impala Web User Interface</a></li><li class="topicref"><a href="topics/impala_ssl.html">Configuring TLS/SSL for Impala</a></li><li class="topicref"><a href="topics/impala_authorization.html">Enabling Sentry Authorization for Impala</a></li><li class="topicref"><a href="topics/impala_authentication.html">Impala Authentication</a><ul><li class="topicref"><a href="topics/impala_kerberos.html">Enabling Kerberos Authentication for Impala</a></li><li class="topicref"><a href="topics/impala_ldap.html">Enabling LDAP Authentication for Impala</a></li><li 
 class="topicref"><a href="topics/impala_mixed_security.html">Using Multiple Authentication Methods with Impala</a></li><li class="topicref"><a href="topics/impala_delegation.html">Configuring Impala Delegation for Hue and BI Tools</a></li></ul></li><li class="topicref"><a href="topics/impala_auditing.html">Auditing</a></li><li class="topicref"><a href="topics/impala_lineage.html">Viewing Lineage Info</a></li></ul></li><li class="topicref"><a href="topics/impala_langref.html">SQL Reference</a><ul><li class="topicref"><a href="topics/impala_comments.html">Comments</a></li><li class="topicref"><a href="topics/impala_datatypes.html">Data Types</a><ul><li class="topicref"><a href="topics/impala_array.html">ARRAY Complex Type (Impala 2.3 or higher only)</a></li><li class="topicref"><a href="topics/impala_bigint.html">BIGINT</a></li><li class="topicref"><a href="topics/impala_boolean.html">BOOLEAN</a></li><li class="topicref"><a href="topics/impala_char.html">CHAR</a></li><li class="topicr
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 x Types (Impala 2.3 or higher only)</a></li></ul></li><li class="topicref"><a href="topics/impala_literals.html">Literals</a></li><li class="topicref"><a href="topics/impala_operators.html">SQL Operators</a></li><li class="topicref"><a href="topics/impala_schema_objects.html">Schema Objects and Object Names</a><ul><li class="topicref"><a href="topics/impala_aliases.html">Aliases</a></li><li class="topicref"><a href="topics/impala_databases.html">Databases</a></li><li class="topicref"><a href="topics/impala_functions_overview.html">Functions</a></li><li class="topicref"><a href="topics/impala_identifiers.html">Identifiers</a></li><li class="topicref"><a href="topics/impala_tables.html">Tables</a></li><li class="topicref"><a href="topics/impala_views.html">Views</a></li></ul></li><li class="topicref"><a href="topics/impala_langref_sql.html">SQL Statements</a><ul><li class="topicref"><a href="topics/impala_ddl.html">DDL Statements</a></li><li class="topicref"><a href="topics/impala_dml
 .html">DML Statements</a></li><li class="topicref"><a href="topics/impala_alter_table.html">ALTER TABLE</a></li><li class="topicref"><a href="topics/impala_alter_view.html">ALTER VIEW</a></li><li class="topicref"><a href="topics/impala_compute_stats.html">COMPUTE STATS</a></li><li class="topicref"><a href="topics/impala_create_database.html">CREATE DATABASE</a></li><li class="topicref"><a href="topics/impala_create_function.html">CREATE FUNCTION</a></li><li class="topicref"><a href="topics/impala_create_role.html">CREATE ROLE</a></li><li class="topicref"><a href="topics/impala_create_table.html">CREATE TABLE</a></li><li class="topicref"><a href="topics/impala_create_view.html">CREATE VIEW</a></li><li class="topicref"><a href="topics/impala_delete.html">DELETE</a></li><li class="topicref"><a href="topics/impala_describe.html">DESCRIBE</a></li><li class="topicref"><a href="topics/impala_drop_database.html">DROP DATABASE</a></li><li class="topicref"><a href="topics/impala_drop_function
 .html">DROP FUNCTION</a></li><li class="topicref"><a href="topics/impala_drop_role.html">DROP ROLE</a></li><li class="topicref"><a href="topics/impala_drop_stats.html">DROP STATS</a></li><li class="topicref"><a href="topics/impala_drop_table.html">DROP TABLE</a></li><li class="topicref"><a href="topics/impala_drop_view.html">DROP VIEW</a></li><li class="topicref"><a href="topics/impala_explain.html">EXPLAIN</a></li><li class="topicref"><a href="topics/impala_grant.html">GRANT</a></li><li class="topicref"><a href="topics/impala_insert.html">INSERT</a></li><li class="topicref"><a href="topics/impala_invalidate_metadata.html">INVALIDATE METADATA</a></li><li class="topicref"><a href="topics/impala_load_data.html">LOAD DATA</a></li><li class="topicref"><a href="topics/impala_refresh.html">REFRESH</a></li><li class="topicref"><a href="topics/impala_revoke.html">REVOKE</a></li><li class="topicref"><a href="topics/impala_select.html">SELECT</a><ul><li class="topicref"><a href="topics/impala
 _joins.html">Joins</a></li><li class="topicref"><a href="topics/impala_order_by.html">ORDER BY Clause</a></li><li class="topicref"><a href="topics/impala_group_by.html">GROUP BY Clause</a></li><li class="topicref"><a href="topics/impala_having.html">HAVING Clause</a></li><li class="topicref"><a href="topics/impala_limit.html">LIMIT Clause</a></li><li class="topicref"><a href="topics/impala_offset.html">OFFSET Clause</a></li><li class="topicref"><a href="topics/impala_union.html">UNION Clause</a></li><li class="topicref"><a href="topics/impala_subqueries.html">Subqueries</a></li><li class="topicref"><a href="topics/impala_tablesample.html">TABLESAMPLE Clause</a></li><li class="topicref"><a href="topics/impala_with.html">WITH Clause</a></li><li class="topicref"><a href="topics/impala_distinct.html">DISTINCT Operator</a></li><li class="topicref"><a href="topics/impala_hints.html">Hints</a></li></ul></li><li class="topicref"><a href="topics/impala_set.html">SET</a><ul><li class="topicre
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 href="topics/impala_schedule_random_replica.html">SCHEDULE_RANDOM_REPLICA</a></li><li class="topicref"><a href="topics/impala_scratch_limit.html">SCRATCH_LIMIT</a></li><li class="topicref"><a href="topics/impala_support_start_over.html">SUPPORT_START_OVER</a></li><li class="topicref"><a href="topics/impala_sync_ddl.html">SYNC_DDL</a></li><li class="topicref"><a href="topics/impala_v_cpu_cores.html">V_CPU_CORES</a></li></ul></li></ul></li><li class="topicref"><a href="topics/impala_show.html">SHOW</a></li><li class="topicref"><a href="topics/impala_truncate_table.html">TRUNCATE TABLE</a></li><li class="topicref"><a href="topics/impala_update.html">UPDATE</a></li><li class="topicref"><a href="topics/impala_upsert.html">UPSERT</a></li><li class="topicref"><a href="topics/impala_use.html">USE</a></li></ul></li><li class="topicref"><a href="topics/impala_functions.html">Built-In Functions</a><ul><li class="topicref"><a href="topics/impala_math_functions.html">Mathematical Functions</a></
 li><li class="topicref"><a href="topics/impala_bit_functions.html">Bit Functions</a></li><li class="topicref"><a href="topics/impala_conversion_functions.html">Type Conversion Functions</a></li><li class="topicref"><a href="topics/impala_datetime_functions.html">Date and Time Functions</a></li><li class="topicref"><a href="topics/impala_conditional_functions.html">Conditional Functions</a></li><li class="topicref"><a href="topics/impala_string_functions.html">String Functions</a></li><li class="topicref"><a href="topics/impala_misc_functions.html">Miscellaneous Functions</a></li><li class="topicref"><a href="topics/impala_aggregate_functions.html">Aggregate Functions</a><ul><li class="topicref"><a href="topics/impala_appx_median.html">APPX_MEDIAN</a></li><li class="topicref"><a href="topics/impala_avg.html">AVG</a></li><li class="topicref"><a href="topics/impala_count.html">COUNT</a></li><li class="topicref"><a href="topics/impala_group_concat.html">GROUP_CONCAT</a></li><li class="t
 opicref"><a href="topics/impala_max.html">MAX</a></li><li class="topicref"><a href="topics/impala_min.html">MIN</a></li><li class="topicref"><a href="topics/impala_ndv.html">NDV</a></li><li class="topicref"><a href="topics/impala_stddev.html">STDDEV, STDDEV_SAMP, STDDEV_POP</a></li><li class="topicref"><a href="topics/impala_sum.html">SUM</a></li><li class="topicref"><a href="topics/impala_variance.html">VARIANCE, VARIANCE_SAMP, VARIANCE_POP, VAR_SAMP, VAR_POP</a></li></ul></li><li class="topicref"><a href="topics/impala_analytic_functions.html">Analytic Functions</a></li><li class="topicref"><a href="topics/impala_udf.html">Impala User-Defined Functions (UDFs)</a></li></ul></li><li class="topicref"><a href="topics/impala_langref_unsupported.html">SQL Differences Between Impala and Hive</a></li><li class="topicref"><a href="topics/impala_porting.html">Porting SQL</a></li></ul></li><li class="topicref"><a href="topics/impala_impala_shell.html">The Impala Shell</a><ul><li class="topic
 ref"><a href="topics/impala_shell_options.html">Configuration Options</a></li><li class="topicref"><a href="topics/impala_connecting.html">Connecting to impalad</a></li><li class="topicref"><a href="topics/impala_shell_running_commands.html">Running Commands and SQL Statements</a></li><li class="topicref"><a href="topics/impala_shell_commands.html">Command Reference</a></li></ul></li><li class="topicref"><a href="topics/impala_performance.html">Performance Tuning</a><ul><li class="topicref"><a href="topics/impala_perf_cookbook.html">Performance Best Practices</a></li><li class="topicref"><a href="topics/impala_perf_joins.html">Join Performance</a></li><li class="topicref"><a href="topics/impala_perf_stats.html">Table and Column Statistics</a></li><li class="topicref"><a href="topics/impala_perf_benchmarking.html">Benchmarking</a></li><li class="topicref"><a href="topics/impala_perf_resources.html">Controlling Resource Usage</a></li><li class="topicref"><a href="topics/impala_runtime
 _filtering.html">Runtime Filtering</a></li><li class="topicref"><a href="topics/impala_perf_hdfs_caching.html">HDFS Caching</a></li><li class="topicref"><a href="topics/impala_perf_testing.html">Testing Impala Performance</a></li><li class="topicref"><a href="topics/impala_explain_plan.html">EXPLAIN Plans and Query Profiles</a></li><li class="topicref"><a href="topics/impala_perf_skew.html">HDFS Block Skew</a></li></ul></li><li class="topicref"><a href="topics/impala_scalability.html">Scalability Considerations</a></li><li class="topicref"><a href="topics/impala_partitioning.html">Partitioning</a></li><li class="topicref"><a href="topics/impala_file_formats.html">File Formats</a><ul><li class="topicref"><a href="topics/impala_txtfile.html">Text Data Files</a></li><li class="topicref"><a href="topics/impala_parquet.html">Parquet Data Files</a></li><li class="topicref"><a href="topics/impala_avro.html">Avro Data Files</a></li><li class="topicref"><a href="topics/impala_rcfile.html">RC
 File Data Files</a></li><li class="topicref"><a href="topics/impala_seqfile.html">SequenceFile Data Files</a></li></ul></li><li class="topicref"><a href="topics/impala_kudu.html">Using Impala to Query Kudu Tables</a></li><li class="topicref"><a href="topics/impala_hbase.html">HBase Tables</a></li><li class="topicref"><a href="topics/impala_s3.html">S3 Tables</a></li><li class="topicref"><a href="topics/impala_adls.html">ADLS Tables</a></li><li class="topicref"><a href="topics/impala_isilon.html">Isilon Storage</a></li><li class="topicref"><a href="topics/impala_logging.html">Logging</a></li><li class="topicref"><a href="topics/impala_troubleshooting.html">Troubleshooting Impala</a><ul><li class="topicref"><a href="topics/impala_webui.html">Web User Interface</a></li><li class="topicref"><a href="topics/impala_breakpad.html">Breakpad Minidumps</a></li></ul></li><li class="topicref"><a href="topics/impala_ports.html">Ports Used by Impala</a></li><li class="topicref"><a href="topics/im
 pala_reserved_words.html">Impala Reserved Words</a></li><li class="topicref"><a href="topics/impala_faq.html">Impala Frequently Asked Questions</a></li><li class="topicref"><a href="topics/impala_release_notes.html">Impala Release Notes</a><ul><li class="topicref"><a href="topics/impala_relnotes.html">Impala Release Notes</a></li><li class="topicref"><a href="topics/impala_new_features.html">New Features in Apache Impala (incubating)</a></li><li class="topicref"><a href="topics/impala_incompatible_changes.html">Incompatible Changes and Limitations in Apache Impala (incubating)</a></li><li class="topicref"><a href="topics/impala_known_issues.html">Known Issues and Workarounds in Impala</a></li><li class="topicref"><a href="topics/impala_fixed_issues.html">Fixed Issues in Apache Impala (incubating)</a></li></ul></li></ul></nav></body></html>
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-impala/blob/ca9005be/docs/build/html/topics/impala_adls.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_adls.html b/docs/build/html/topics/impala_adls.html
index 2f10f7f..3a68e48 100644
--- a/docs/build/html/topics/impala_adls.html
+++ b/docs/build/html/topics/impala_adls.html
@@ -8,13 +8,6 @@
 
   <div class="body conbody">
 
-    <div class="note important note_important"><span class="note__title importanttitle">Important:</span> 
-        <p class="p">
-          Currently, the ADLS support in Impala is preliminary and not
-          fully tested. Do not use Impala with ADLS in a production environment.
-        </p>
-      </div>
-
     <p class="p">
       
       You can use Impala to query data residing on the Azure Data Lake Store (ADLS) filesystem.
@@ -52,7 +45,7 @@
         </li>
         <li class="li">
           <p class="p">
-            <a class="xref" href="https://hadoop.apache.org/docs/current2/hadoop-azure-datalake/index.html" target="_blank">Hadoop Azure Data Lake Support</a>
+            <a class="xref" href="https://hadoop.apache.org/docs/current/hadoop-azure-datalake/index.html" target="_blank">Hadoop Azure Data Lake Support</a>
           </p>
         </li>
       </ul>

http://git-wip-us.apache.org/repos/asf/incubator-impala/blob/ca9005be/docs/build/html/topics/impala_alter_table.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_alter_table.html b/docs/build/html/topics/impala_alter_table.html
index 6d01d0e..c44b6a3 100644
--- a/docs/build/html/topics/impala_alter_table.html
+++ b/docs/build/html/topics/impala_alter_table.html
@@ -29,8 +29,20 @@
 ALTER TABLE <var class="keyword varname">name</var> ADD COLUMNS (<var class="keyword varname">col_spec</var>[, <var class="keyword varname">col_spec</var> ...])
 ALTER TABLE <var class="keyword varname">name</var> DROP [COLUMN] <var class="keyword varname">column_name</var>
 ALTER TABLE <var class="keyword varname">name</var> CHANGE <var class="keyword varname">column_name</var> <var class="keyword varname">new_name</var> <var class="keyword varname">new_type</var>
+
 ALTER TABLE <var class="keyword varname">name</var> REPLACE COLUMNS (<var class="keyword varname">col_spec</var>[, <var class="keyword varname">col_spec</var> ...])
 
+<span class="ph">-- Kudu tables only.
+ALTER TABLE <var class="keyword varname">name</var> ALTER [COLUMN] <var class="keyword varname">column_name</var>
+  { SET <var class="keyword varname">kudu_storage_attr</var> <var class="keyword varname">attr_value</var>
+    | DROP DEFAULT }
+
+kudu_storage_attr ::= { DEFAULT | BLOCK_SIZE | ENCODING | COMPRESSION }</span>
+
+<span class="ph">-- Non-Kudu tables only.
+ALTER TABLE <var class="keyword varname">name</var> ALTER [COLUMN] <var class="keyword varname">column_name</var>
+  SET COMMENT '<var class="keyword varname">comment_text</var>'</span>
+
 ALTER TABLE <var class="keyword varname">name</var> ADD [IF NOT EXISTS] PARTITION (<var class="keyword varname">partition_spec</var>)
   <span class="ph">[<var class="keyword varname">location_spec</var>]</span>
   <span class="ph">[<var class="keyword varname">cache_spec</var>]</span>
@@ -994,8 +1006,14 @@ ALTER TABLE <var class="keyword varname">table_name</var> SET TBLPROPERTIES('EXT
         </li>
         <li class="li">
           <p class="p">
-            You cannot change the default value, nullability, encoding, compression, or block size
-            of existing columns in a Kudu table.
+            You cannot change the nullability of existing columns in a Kudu table.
+          </p>
+        </li>
+        <li class="li">
+          <p class="p">
+            In <span class="keyword">Impala 2.10</span>, you can change the default value, encoding,
+            compression, or block size of existing columns in a Kudu table by using the
+            <code class="ph codeph">SET</code> clause.
           </p>
         </li>
         <li class="li">
@@ -1030,6 +1048,55 @@ ALTER TABLE t1 ADD COLUMNS (a STRING NOT NULL DEFAULT '', t TIMESTAMP COMPRESSIO
 </code></pre>
 
     <p class="p">
+      The following are some examples of modifying column defaults and storage attributes for a Kudu table:
+    </p>
+
+<pre class="pre codeblock"><code>
+create table kt (x bigint primary key, s string default 'yes', t timestamp)
+  stored as kudu;
+
+-- You can change the default value for a column, which affects any rows
+-- inserted after this change is made.
+alter table kt alter column s set default 'no';
+
+-- You can remove the default value for a column, which affects any rows
+-- inserted after this change is made. If the column is nullable, any
+-- future inserts default to NULL for this column. If the column is marked
+-- NOT NULL, any future inserts must specify a value for the column.
+alter table kt alter column s drop default;
+
+insert into kt values (1, 'foo', now());
+-- Because of the DROP DEFAULT above, omitting S from the insert
+-- gives it a value of NULL.
+insert into kt (x, t) values (2, now());
+
+select * from kt;
++---+------+-------------------------------+
+| x | s    | t                             |
++---+------+-------------------------------+
+| 2 | NULL | 2017-10-02 00:03:40.652156000 |
+| 1 | foo  | 2017-10-02 00:03:04.346185000 |
++---+------+-------------------------------+
+
+-- Other storage-related attributes can also be changed for columns.
+-- These changes take effect for any newly inserted rows, or rows
+-- rearranged due to compaction after deletes or updates.
+alter table kt alter column s set encoding prefix_encoding;
+-- The COLUMN keyword is optional in the syntax.
+alter table kt alter x set block_size 2048;
+alter table kt alter column t set compression zlib;
+
+desc kt;
++------+-----------+---------+-------------+----------+---------------+-----------------+---------------------+------------+
+| name | type      | comment | primary_key | nullable | default_value | encoding        | compression         | block_size |
++------+-----------+---------+-------------+----------+---------------+-----------------+---------------------+------------+
+| x    | bigint    |         | true        | false    |               | AUTO_ENCODING   | DEFAULT_COMPRESSION | 2048       |
+| s    | string    |         | false       | true     |               | PREFIX_ENCODING | DEFAULT_COMPRESSION | 0          |
+| t    | timestamp |         | false       | true     |               | AUTO_ENCODING   | ZLIB                | 0          |
++------+-----------+---------+-------------+----------+---------------+-----------------+---------------------+------------+
+</code></pre>
+
+    <p class="p">
       Kudu tables all use an underlying partitioning mechanism. The partition syntax is different than for non-Kudu
       tables. You can use the <code class="ph codeph">ALTER TABLE</code> statement to add and drop <dfn class="term">range partitions</dfn>
       from a Kudu table. Any new range must not overlap with any existing ranges. Dropping a range removes all the associated

http://git-wip-us.apache.org/repos/asf/incubator-impala/blob/ca9005be/docs/build/html/topics/impala_array.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_array.html b/docs/build/html/topics/impala_array.html
index 960e337..f0ebc4e 100644
--- a/docs/build/html/topics/impala_array.html
+++ b/docs/build/html/topics/impala_array.html
@@ -118,7 +118,7 @@ type ::= <var class="keyword varname">primitive_type</var> | <var class="keyword
           </p>
         </li>
         <li class="li">
-          <p class="p" id="array__d6e3003">
+          <p class="p" id="array__d6e3156">
             The maximum length of the column definition for any complex type, including declarations for any nested types,
             is 4000 characters.
           </p>

http://git-wip-us.apache.org/repos/asf/incubator-impala/blob/ca9005be/docs/build/html/topics/impala_buffer_pool_limit.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_buffer_pool_limit.html b/docs/build/html/topics/impala_buffer_pool_limit.html
new file mode 100644
index 0000000..b1e59a8
--- /dev/null
+++ b/docs/build/html/topics/impala_buffer_pool_limit.html
@@ -0,0 +1,71 @@
+<!DOCTYPE html
+  SYSTEM "about:legacy-compat">
+<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2017"><meta name="DC.rights.owner" content="(C) Copyright 2017"><meta name="DC.Type" content="concept"><meta name="DC.Relation" scheme="URI" content="../topics/impala_query_options.html"><meta name="prodname" content="Impala"><meta name="prodname" content="Impala"><meta name="version" content="Impala 2.8.x"><meta name="version" content="Impala 2.8.x"><meta name="DC.Format" content="XHTML"><meta name="DC.Identifier" content="buffer_pool_limit"><link rel="stylesheet" type="text/css" href="../commonltr.css"><title>BUFFER_POOL_LIMIT Query Option</title></head><body id="buffer_pool_limit"><main role="main"><article role="article" aria-labelledby="ariaid-title1">
+
+  <h1 class="title topictitle1" id="ariaid-title1">BUFFER_POOL_LIMIT Query Option</h1>
+  
+  
+
+  <div class="body conbody">
+
+    <p class="p">
+      
+      Defines a limit on the amount of memory that a query can allocate from the
+      internal buffer pool. The value for this limit applies to the memory on each host,
+      not the aggregate memory across the cluster. Typically not changed by users, except
+      during diagnosis of out-of-memory errors during queries.
+    </p>
+
+    <p class="p">
+        <strong class="ph b">Type:</strong> integer
+      </p>
+
+
+
+    <p class="p">
+        <strong class="ph b">Default:</strong>
+      </p>
+    <p class="p">
+      The default setting for this option is the lower of 80% of the
+      <code class="ph codeph">MEM_LIMIT</code> setting, or the <code class="ph codeph">MEM_LIMIT</code>
+      setting minus 100 MB.
+    </p>
+
+    <p class="p">
+        <strong class="ph b">Added in:</strong> <span class="keyword">Impala 2.10.0</span>
+      </p>
+
+    <p class="p">
+        <strong class="ph b">Usage notes:</strong>
+      </p>
+    <p class="p">
+      If queries encounter out-of-memory errors, consider decreasing the
+      <code class="ph codeph">BUFFER_POOL_LIMIT</code> setting to less than 80% of the
+      <code class="ph codeph">MEM_LIMIT setting</code>.
+    </p>
+
+    <p class="p">
+        <strong class="ph b">Examples:</strong>
+      </p>
+
+<pre class="pre codeblock"><code>
+-- Set an absolute value.
+set buffer_pool_limit=8GB;
+
+-- Set a relative value based on the MEM_LIMIT setting.
+set buffer_pool_limit=80%;
+
+</code></pre>
+
+    <p class="p">
+        <strong class="ph b">Related information:</strong>
+      </p>
+    <p class="p">
+      <a class="xref" href="impala_default_spillable_buffer_size.html">DEFAULT_SPILLABLE_BUFFER_SIZE Query Option</a>,
+      <a class="xref" href="impala_max_row_size.html">MAX_ROW_SIZE Query Option</a>,
+      <a class="xref" href="impala_min_spillable_buffer_size.html">MIN_SPILLABLE_BUFFER_SIZE Query Option</a>,
+      <a class="xref" href="impala_scalability.html">Scalability Considerations for Impala</a>
+    </p>
+
+  </div>
+<nav role="navigation" class="related-links"><div class="familylinks"><div class="parentlink"><strong>Parent topic:</strong> <a class="link" href="../topics/impala_query_options.html">Query Options for the SET Statement</a></div></div></nav></article></main></body></html>
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-impala/blob/ca9005be/docs/build/html/topics/impala_compute_stats.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_compute_stats.html b/docs/build/html/topics/impala_compute_stats.html
index a20c0b2..c816b31 100644
--- a/docs/build/html/topics/impala_compute_stats.html
+++ b/docs/build/html/topics/impala_compute_stats.html
@@ -61,6 +61,31 @@ COMPUTE INCREMENTAL STATS [<var class="keyword varname">db_name</var>.]<var clas
       for full usage details.
     </p>
 
+    <div class="note important note_important"><span class="note__title importanttitle">Important:</span> 
+      <p class="p">
+        For a particular table, use either <code class="ph codeph">COMPUTE STATS</code> or
+        <code class="ph codeph">COMPUTE INCREMENTAL STATS</code>, but never combine the two or alternate
+        between them. If you switch from <code class="ph codeph">COMPUTE STATS</code> to
+        <code class="ph codeph">COMPUTE INCREMENTAL STATS</code> during the lifetime of a table, or vice
+        versa, drop all statistics (by running both <code class="ph codeph">DROP STATS</code> and
+        <code class="ph codeph">DROP INCREMENTAL STATS</code>) before making the switch.
+      </p>
+      <p class="p">
+        When you run <code class="ph codeph">COMPUTE INCREMENTAL STATS</code> on a table for the first time,
+        the statistics are computed again from scratch regardless of whether the table already
+        has statistics. Therefore, expect a one-time resource-intensive operation
+        for scanning the entire table when running <code class="ph codeph">COMPUTE INCREMENTAL STATS</code>
+        for the first time on a given table.
+      </p>
+      <p class="p">
+        For a table with a huge number of partitions and many columns, the approximately 400 bytes
+        of metadata per column per partition can add up to significant memory overhead, as it must
+        be cached on the <span class="keyword cmdname">catalogd</span> host and on every <span class="keyword cmdname">impalad</span> host
+        that is eligible to be a coordinator. If this metadata for all tables combined exceeds 2 GB,
+        you might experience service downtime.
+      </p>
+    </div>
+
     <p class="p">
       <code class="ph codeph">COMPUTE INCREMENTAL STATS</code> only applies to partitioned tables. If you use the
       <code class="ph codeph">INCREMENTAL</code> clause for an unpartitioned table, Impala automatically uses the original
@@ -330,7 +355,7 @@ Returned 2 row(s) in 0.01s</code></pre>
     </p>
 
 <pre class="pre codeblock"><code>-- Initially the table has no incremental stats, as indicated
--- by -1 under #Rows and false under Incremental stats.
+-- 'false' under Incremental stats.
 show table stats item_partitioned;
 +-------------+-------+--------+----------+--------------+---------+------------------
 | i_category  | #Rows | #Files | Size     | Bytes Cached | Format  | Incremental stats
@@ -349,7 +374,10 @@ show table stats item_partitioned;
 +-------------+-------+--------+----------+--------------+---------+------------------
 
 -- After the first COMPUTE INCREMENTAL STATS,
--- all partitions have stats.
+-- all partitions have stats. The first
+-- COMPUTE INCREMENTAL STATS scans the whole
+-- table, discarding any previous stats from
+-- a traditional COMPUTE STATS statement.
 compute incremental stats item_partitioned;
 +-------------------------------------------+
 | summary                                   |

http://git-wip-us.apache.org/repos/asf/incubator-impala/blob/ca9005be/docs/build/html/topics/impala_config_options.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_config_options.html b/docs/build/html/topics/impala_config_options.html
index 5bf3ff2..27b332f 100644
--- a/docs/build/html/topics/impala_config_options.html
+++ b/docs/build/html/topics/impala_config_options.html
@@ -73,7 +73,6 @@ IMPALA_SERVER_ARGS=" \
 -log_dir=${IMPALA_LOG_DIR} \
 -catalog_service_host=${IMPALA_CATALOG_SERVICE_HOST} \
 -state_store_port=${IMPALA_STATE_STORE_PORT} \
--use_statestore \
 -state_store_host=${IMPALA_STATE_STORE_HOST} \
 -be_port=${IMPALA_BACKEND_PORT}"
 export ENABLE_CORE_DUMPS=${ENABLE_COREDUMPS:-false}</code></pre>
@@ -154,14 +153,14 @@ Starting Impala Catalog Server:                            [  OK  ]</code></pre>
 <pre class="pre codeblock"><code>export IMPALA_SERVER_ARGS=${IMPALA_SERVER_ARGS:- \
     -log_dir=${IMPALA_LOG_DIR} \
     -state_store_port=${IMPALA_STATE_STORE_PORT} \
-    -use_statestore -state_store_host=${IMPALA_STATE_STORE_HOST} \
+    -state_store_host=${IMPALA_STATE_STORE_HOST} \
     -be_port=${IMPALA_BACKEND_PORT}}</code></pre>
           <p class="p">
             to:
           </p>
 <pre class="pre codeblock"><code>export IMPALA_SERVER_ARGS=${IMPALA_SERVER_ARGS:- \
     -log_dir=${IMPALA_LOG_DIR} -state_store_port=${IMPALA_STATE_STORE_PORT} \
-    -use_statestore -state_store_host=${IMPALA_STATE_STORE_HOST} \
+    -state_store_host=${IMPALA_STATE_STORE_HOST} \
     -be_port=${IMPALA_BACKEND_PORT} -mem_limit=70%}</code></pre>
           <p class="p">
             You can specify the memory limit using absolute notation such as

http://git-wip-us.apache.org/repos/asf/incubator-impala/blob/ca9005be/docs/build/html/topics/impala_connecting.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_connecting.html b/docs/build/html/topics/impala_connecting.html
index e48d850..e3d6e9e 100644
--- a/docs/build/html/topics/impala_connecting.html
+++ b/docs/build/html/topics/impala_connecting.html
@@ -59,8 +59,7 @@
         Use the <code class="ph codeph">-i</code> option to the
         <span class="keyword cmdname">impala-shell</span> interpreter to specify the connection information for
         that instance of <span class="keyword cmdname">impalad</span>:
-<pre class="pre codeblock"><code>
-# When you are logged into the same machine running impalad.
+<pre class="pre codeblock"><code># When you are logged into the same machine running impalad.
 # The prompt will reflect the current hostname.
 $ impala-shell
 
@@ -138,8 +137,7 @@ $ impala-shell -i <var class="keyword varname">some.other.hostname</var>:<var cl
         <span class="keyword cmdname">impala-shell</span> interpreter to connect and immediately
         switch to the specified database, without the need for a <code class="ph codeph">USE</code>
         statement or fully qualified names:
-<pre class="pre codeblock"><code>
-# Subsequent queries with unqualified names operate on
+<pre class="pre codeblock"><code># Subsequent queries with unqualified names operate on
 # tables, views, and so on inside the database named 'staging'.
 $ impala-shell -i localhost -d staging
 
@@ -174,8 +172,7 @@ $ impala-shell -i localhost -d parquet_gzip_compression
         the <code class="ph codeph">-f</code> option to run a sequence of statements from a file.
         The <span class="keyword cmdname">impala-shell</span> command returns immediately, without going into
         the interactive interpreter.
-<pre class="pre codeblock"><code>
-# A utility command that you might run while developing shell scripts
+<pre class="pre codeblock"><code># A utility command that you might run while developing shell scripts
 # to manipulate HDFS files.
 $ impala-shell -i localhost -d database_of_interest -q 'show tables'
 

http://git-wip-us.apache.org/repos/asf/incubator-impala/blob/ca9005be/docs/build/html/topics/impala_create_table.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_create_table.html b/docs/build/html/topics/impala_create_table.html
index 1d890d8..1bf8327 100644
--- a/docs/build/html/topics/impala_create_table.html
+++ b/docs/build/html/topics/impala_create_table.html
@@ -160,7 +160,7 @@ data_type:
     [, ...]
     [PRIMARY KEY (<var class="keyword varname">col_name</var>[, ...])]
   )
-  <span class="ph">[PARTITION BY <var class="keyword varname">kudu_partition_clause</var></span>
+  <span class="ph">[PARTITION BY <var class="keyword varname">kudu_partition_clause</var>]</span>
   [COMMENT '<var class="keyword varname">table_comment</var>']
   STORED AS KUDU
   [TBLPROPERTIES ('<var class="keyword varname">key1</var>'='<var class="keyword varname">value1</var>', '<var class="keyword varname">key2</var>'='<var class="keyword varname">value2</var>', ...)]
@@ -181,7 +181,7 @@ data_type:
     <div class="p">
       <strong class="ph b">kudu_partition_clause:</strong>
 <pre class="pre codeblock"><code>
-kudu_partition_clause ::= PARTITION BY [<var class="keyword varname">hash_clause</var>] [, <var class="keyword varname">range_clause</var> [ , <var class="keyword varname">range_clause</var> ] ]
+kudu_partition_clause ::= [<var class="keyword varname">hash_clause</var>] [, <var class="keyword varname">range_clause</var> [ , <var class="keyword varname">range_clause</var> ] ]
 
 hash_clause ::=
   HASH [ (<var class="keyword varname">pk_col</var> [, ...]) ]
@@ -217,7 +217,7 @@ range_comparison_operator ::= { &lt; | &lt;= }
 
 <pre class="pre codeblock"><code>CREATE TABLE [IF NOT EXISTS] <var class="keyword varname">db_name</var>.]<var class="keyword varname">table_name</var>
   [PRIMARY KEY (<var class="keyword varname">col_name</var>[, ...])]
-  [PARTITION BY <var class="keyword varname">kudu_partition_clause</var>
+  [PARTITION BY <var class="keyword varname">kudu_partition_clause</var>]
   [COMMENT '<var class="keyword varname">table_comment</var>']
   STORED AS KUDU
   [TBLPROPERTIES ('<var class="keyword varname">key1</var>'='<var class="keyword varname">value1</var>', '<var class="keyword varname">key2</var>'='<var class="keyword varname">value2</var>', ...)]
@@ -337,6 +337,14 @@ AS
         tables. See the <code class="ph codeph">PARTITION BY</code> clause, rather than <code class="ph codeph">PARTITIONED
         BY</code>, for Kudu tables.
       </p>
+      <p class="p">
+        In <span class="keyword">Impala 2.10</span> and higher, the <code class="ph codeph">PARTITION BY</code>
+        clause is optional for Kudu tables. If the clause is omitted, Impala automatically
+        constructs a single partition that is not connected to any column. Because such a
+        table cannot take advantage of Kudu features for parallelized queries and
+        query optimizations, omitting the <code class="ph codeph">PARTITION BY</code> clause is only
+        appropriate for small lookup tables.
+      </p>
     </div>
 
     <p class="p">
@@ -434,9 +442,9 @@ AS
       partitioning mechanisms, the syntax associated with the <code class="ph codeph">STORED AS KUDU</code>
       clause is shown separately in the above syntax descriptions. Kudu tables have their own
       syntax for <code class="ph codeph">CREATE TABLE</code>, <code class="ph codeph">CREATE EXTERNAL TABLE</code>, and
-      <code class="ph codeph">CREATE TABLE AS SELECT</code>. All internal Kudu tables require a
-      <code class="ph codeph">PARTITION BY</code> clause, different than the <code class="ph codeph">PARTITIONED BY</code>
-      clause for HDFS-backed tables.
+      <code class="ph codeph">CREATE TABLE AS SELECT</code>. <span class="ph">Prior to <span class="keyword">Impala 2.10</span>,
+      all internal Kudu tables require a <code class="ph codeph">PARTITION BY</code> clause, different than
+      the <code class="ph codeph">PARTITIONED BY</code> clause for HDFS-backed tables.</span>
     </p>
 
     <p class="p">
@@ -444,6 +452,14 @@ AS
     </p>
 
 <pre class="pre codeblock"><code>
+<span class="ph">-- Single partition. Only for <span class="keyword">Impala 2.10</span> and higher.
+-- Only suitable for small lookup tables.
+CREATE TABLE kudu_no_partition_by_clause
+  (
+    id bigint PRIMARY KEY, s STRING, b BOOLEAN
+  )
+  STORED AS KUDU;</span>
+
 -- Single-column primary key.
 CREATE TABLE kudu_t1 (id BIGINT PRIMARY key, s STRING, b BOOLEAN)
   PARTITION BY HASH (id) PARTITIONS 20 STORED AS KUDU;

http://git-wip-us.apache.org/repos/asf/incubator-impala/blob/ca9005be/docs/build/html/topics/impala_datetime_functions.html
----------------------------------------------------------------------
diff --git a/docs/build/html/topics/impala_datetime_functions.html b/docs/build/html/topics/impala_datetime_functions.html
index 1649c0a..b566354 100644
--- a/docs/build/html/topics/impala_datetime_functions.html
+++ b/docs/build/html/topics/impala_datetime_functions.html
@@ -769,6 +769,74 @@ select now() as right_now,
 
       
 
+        <dt class="dt dlterm" id="datetime_functions__from_timestamp">
+          <code class="ph codeph">from_timestamp(datetime timestamp, pattern string)</code>
+        </dt>
+
+        <dd class="dd">
+          
+          <strong class="ph b">Purpose:</strong> Converts a <code class="ph codeph">TIMESTAMP</code> value into a
+          string representing the same value.
+          <p class="p">
+            <strong class="ph b">Return type:</strong> <code class="ph codeph">string</code>
+          </p>
+          <p class="p">
+        <strong class="ph b">Added in:</strong> <span class="keyword">Impala 2.3.0</span>
+      </p>
+          <p class="p">
+        <strong class="ph b">Usage notes:</strong>
+      </p>
+          <p class="p">
+            The <code class="ph codeph">from_timestamp()</code> function provides a flexible way to convert <code class="ph codeph">TIMESTAMP</code>
+            values into arbitrary string formats for reporting purposes.
+          </p>
+          <p class="p">
+            Because Impala implicitly converts string values into <code class="ph codeph">TIMESTAMP</code>, you can
+            pass date/time values represented as strings (in the standard <code class="ph codeph">yyyy-MM-dd HH:mm:ss.SSS</code> format)
+            to this function. The result is a string using different separator characters, order of fields, spelled-out month
+            names, or other variation of the date/time string representation.
+          </p>
+          <p class="p">
+            The allowed tokens for the pattern string are the same as for the <code class="ph codeph">from_unixtime()</code> function.
+          </p>
+          <p class="p">
+        <strong class="ph b">Examples:</strong>
+      </p>
+          <p class="p">
+            The following examples show different ways to format a <code class="ph codeph">TIMESTAMP</code>
+            value as a string:
+          </p>
+<pre class="pre codeblock"><code>
+-- Reformat arbitrary TIMESTAMP value.
+select from_timestamp(now(), 'yyyy/MM/dd');
++-------------------------------------+
+| from_timestamp(now(), 'yyyy/mm/dd') |
++-------------------------------------+
+| 2017/10/01                          |
++-------------------------------------+
+
+-- Reformat string literal representing date/time.
+select from_timestamp('1984-09-25', 'yyyy/MM/dd');
++--------------------------------------------+
+| from_timestamp('1984-09-25', 'yyyy/mm/dd') |
++--------------------------------------------+
+| 1984/09/25                                 |
++--------------------------------------------+
+
+-- Alternative format for reporting purposes.
+select from_timestamp('1984-09-25 16:45:30.125', 'MMM dd, yyyy HH:mm:ss.SSS');
++------------------------------------------------------------------------+
+| from_timestamp('1984-09-25 16:45:30.125', 'mmm dd, yyyy hh:mm:ss.sss') |
++------------------------------------------------------------------------+
+| Sep 25, 1984 16:45:30.125                                              |
++------------------------------------------------------------------------+
+</code></pre>
+        </dd>
+
+      
+
+      
+
         <dt class="dt dlterm" id="datetime_functions__from_unixtime">
           <code class="ph codeph">from_unixtime(bigint unixtime[, string format])</code>
         </dt>
@@ -1129,6 +1197,74 @@ select int_months_between('2015-03-31', '2015-01-30');
 
       
 
+        <dt class="dt dlterm" id="datetime_functions__last_day">
+          <code class="ph codeph">last_day(timestamp t)</code>
+        </dt>
+
+        <dd class="dd">
+          
+          <strong class="ph b">Purpose:</strong> Returns a <code class="ph codeph">TIMESTAMP</code> corresponding to
+          the beginning of the last calendar day in the same month as the
+          <code class="ph codeph">TIMESTAMP</code> argument.
+          <p class="p">
+            <strong class="ph b">Return type:</strong> <code class="ph codeph">timestamp</code>
+          </p>
+          <p class="p">
+        <strong class="ph b">Added in:</strong> <span class="keyword">Impala 2.9.0</span>
+      </p>
+          <p class="p">
+        <strong class="ph b">Usage notes:</strong>
+      </p>
+          <p class="p">
+            If the input argument does not represent a valid Impala <code class="ph codeph">TIMESTAMP</code>
+            including both date and time portions, the function returns <code class="ph codeph">NULL</code>.
+            For example, if the input argument is a string that cannot be implicitly cast to
+            <code class="ph codeph">TIMESTAMP</code>, does not include a date portion, or is out of the
+            allowed range for Impala <code class="ph codeph">TIMESTAMP</code> values, the function returns
+            <code class="ph codeph">NULL</code>.
+          </p>
+          <p class="p">
+        <strong class="ph b">Examples:</strong>
+      </p>
+          <p class="p">
+            The following example shows how to examine the current date, and dates around the
+            end of the month, as <code class="ph codeph">TIMESTAMP</code> values with any time portion removed:
+          </p>
+<pre class="pre codeblock"><code>
+select
+    now() as right_now
+  , trunc(now(),'dd') as today
+  , last_day(now()) as last_day_of_month
+  , last_day(now()) + interval 1 day as first_of_next_month;
++-------------------------------+---------------------+---------------------+---------------------+
+| right_now                     | today               | last_day_of_month   | first_of_next_month |
++-------------------------------+---------------------+---------------------+---------------------+
+| 2017-08-15 15:07:58.823812000 | 2017-08-15 00:00:00 | 2017-08-31 00:00:00 | 2017-09-01 00:00:00 |
++-------------------------------+---------------------+---------------------+---------------------+
+</code></pre>
+          <p class="p">
+            The following example shows how to examine the current date and dates around the
+            end of the month as integers representing the day of the month:
+          </p>
+<pre class="pre codeblock"><code>
+select
+    now() as right_now
+  , dayofmonth(now()) as day
+  , extract(day from now()) as also_day
+  , dayofmonth(last_day(now())) as last_day
+  , extract(day from last_day(now())) as also_last_day;
++-------------------------------+-----+----------+----------+---------------+
+| right_now                     | day | also_day | last_day | also_last_day |
++-------------------------------+-----+----------+----------+---------------+
+| 2017-08-15 15:07:59.417755000 | 15  | 15       | 31       | 31            |
++-------------------------------+-----+----------+----------+---------------+
+</code></pre>
+        </dd>
+
+      
+
+      
+
         <dt class="dt dlterm" id="datetime_functions__microseconds_add">
           <code class="ph codeph">microseconds_add(timestamp date, int microseconds)</code>, <code class="ph codeph">microseconds_add(timestamp
           date, bigint microseconds)</code>
@@ -2162,6 +2298,94 @@ select now() as right_now,
 
       
 
+        <dt class="dt dlterm" id="datetime_functions__to_timestamp">
+          <code class="ph codeph">to_timestamp(bigint unixtime)</code>,
+          <code class="ph codeph">to_timestamp(string date, string pattern)</code>
+        </dt>
+
+        <dd class="dd">
+          
+          <strong class="ph b">Purpose:</strong> Converts an integer or string representing
+          a date/time value into the corresponding <code class="ph codeph">TIMESTAMP</code>
+          value.
+          <p class="p">
+            <strong class="ph b">Return type:</strong> <code class="ph codeph">timestamp</code>
+          </p>
+          <p class="p">
+        <strong class="ph b">Added in:</strong> <span class="keyword">Impala 2.3.0</span>
+      </p>
+          <p class="p">
+        <strong class="ph b">Usage notes:</strong>
+      </p>
+          <p class="p">
+            An integer argument represents the number of seconds past the epoch (midnight
+            on January 1, 1970). It is the converse of the <code class="ph codeph">unix_timestamp()</code>
+            function, which produces a <code class="ph codeph">BIGINT</code> representing the number of
+            seconds past the epoch.
+          </p>
+          <p class="p">
+            A string argument, plus another string argument representing the
+            pattern, turns an arbitrary string representation of a date and time
+            into a true <code class="ph codeph">TIMESTAMP</code> value. The ability to parse
+            many kinds of date and time formats allows you to deal with temporal
+            data from diverse sources, and if desired to convert to efficient
+            <code class="ph codeph">TIMESTAMP</code> values during your ETL process. Using
+            <code class="ph codeph">TIMESTAMP</code> directly in queries and expressions lets you
+            perform date and time calculations without the overhead of extra
+            function calls and conversions each time you reference the applicable
+            columns.
+          </p>
+          <p class="p">
+        <strong class="ph b">Examples:</strong>
+      </p>
+          <p class="p">
+            The following examples demonstrate how to convert an arbitrary string
+            representation to <code class="ph codeph">TIMESTAMP</code> based on a pattern string:
+          </p>
+<pre class="pre codeblock"><code>
+select to_timestamp('Sep 25, 1984', 'MMM dd, yyyy');
++----------------------------------------------+
+| to_timestamp('sep 25, 1984', 'mmm dd, yyyy') |
++----------------------------------------------+
+| 1984-09-25 00:00:00                          |
++----------------------------------------------+
+
+select to_timestamp('1984/09/25', 'yyyy/MM/dd');
++------------------------------------------+
+| to_timestamp('1984/09/25', 'yyyy/mm/dd') |
++------------------------------------------+
+| 1984-09-25 00:00:00                      |
++------------------------------------------+
+</code></pre>
+          <p class="p">
+            The following examples show how to convert a <code class="ph codeph">BIGINT</code>
+            representing seconds past epoch into a <code class="ph codeph">TIMESTAMP</code> value:
+          </p>
+<pre class="pre codeblock"><code>
+-- One day past the epoch.
+select to_timestamp(24 * 60 * 60);
++----------------------------+
+| to_timestamp(24 * 60 * 60) |
++----------------------------+
+| 1970-01-02 00:00:00        |
++----------------------------+
+
+-- 60 seconds in the past.
+select now() as 'current date/time',
+  unix_timestamp(now()) 'now in seconds',
+  to_timestamp(unix_timestamp(now()) - 60) as '60 seconds ago';
++-------------------------------+----------------+---------------------+
+| current date/time             | now in seconds | 60 seconds ago      |
++-------------------------------+----------------+---------------------+
+| 2017-10-01 22:03:46.885624000 | 1506895426     | 2017-10-01 22:02:46 |
++-------------------------------+----------------+---------------------+
+</code></pre>
+        </dd>
+
+      
+
+      
+
         <dt class="dt dlterm" id="datetime_functions__to_utc_timestamp">
           <code class="ph codeph">to_utc_timestamp(timestamp, string timezone)</code>
         </dt>
@@ -2232,7 +2456,7 @@ select now() as 'Current time in California USA',
 
       
 
-        <dt class="dt dlterm" id="datetime_functions__trunc">
+        <dt class="dt dlterm" id="datetime_functions__trunc_timestamp"><a id="datetime_functions__trunc"></a>
           <code class="ph codeph">trunc(timestamp, string unit)</code>
         </dt>
 
@@ -2240,7 +2464,8 @@ select now() as 'Current time in California USA',
           
           <strong class="ph b">Purpose:</strong> Strips off fields from a <code class="ph codeph">TIMESTAMP</code> value.
           <div class="p">
-            <strong class="ph b">Unit argument:</strong> The <code class="ph codeph">unit</code> argument value is case-sensitive. This argument string
+            <strong class="ph b">Unit argument:</strong> The <code class="ph codeph">unit</code> argument value for truncating
+            <code class="ph codeph">TIMESTAMP</code> values is case-sensitive. This argument string
             can be one of:
 
             <ul class="ul">
@@ -2282,13 +2507,17 @@ select now() as 'Current time in California USA',
             </ul>
           </div>
           <p class="p">
+            <strong class="ph b">Added in:</strong> The ability to truncate numeric values is new starting in
+            <span class="keyword">Impala 2.10</span>.
+          </p>
+          <p class="p">
         <strong class="ph b">Usage notes:</strong>
       </p>
           <p class="p">
-            Typically used in <code class="ph codeph">GROUP BY</code> queries to aggregate results from the
-            same hour, day, week, month, quarter, and so on. You can also use this function in an <code class="ph codeph">INSERT
-            ... SELECT</code> into a partitioned table to divide <code class="ph codeph">TIMESTAMP</code> values into the
-            correct partition.
+            The <code class="ph codeph">TIMESTAMP</code> form is typically used in <code class="ph codeph">GROUP BY</code>
+            queries to aggregate results from the same hour, day, week, month, quarter, and so on.
+            You can also use this function in an <code class="ph codeph">INSERT ... SELECT</code> into a
+            partitioned table to divide <code class="ph codeph">TIMESTAMP</code> values into the correct partition.
           </p>
           <p class="p">
             Because the return value is a <code class="ph codeph">TIMESTAMP</code>, if you cast the result of
@@ -2299,6 +2528,13 @@ select now() as 'Current time in California USA',
             original value, then run <code class="ph codeph">EXTRACT()</code> on the result.
           </p>
           <p class="p">
+            The <code class="ph codeph">trunc()</code> function also has a signature that applies to
+            <code class="ph codeph">DOUBLE</code> or <code class="ph codeph">DECIMAL</code>values. <code class="ph codeph">truncate()</code>,
+            <code class="ph codeph">trunc()</code>, and <code class="ph codeph">dtrunc()</code> are all aliased to the
+            same function. See <code class="ph codeph">truncate()</code> under <a class="xref" href="impala_math_functions.html">Impala Mathematical Functions</a>
+            for details.
+          </p>
+          <p class="p">
             <strong class="ph b">Return type:</strong> <code class="ph codeph">timestamp</code>
           </p>
           <p class="p">
@@ -2469,6 +2705,68 @@ select unix_timestamp
 
       
 
+        <dt class="dt dlterm" id="datetime_functions__utc_timestamp">
+          <code class="ph codeph">utc_timestamp()</code>
+        </dt>
+
+        <dd class="dd">
+          
+          <strong class="ph b">Purpose:</strong> Returns a <code class="ph codeph">TIMESTAMP</code> corresponding to the current
+          date and time in the UTC time zone.
+          <p class="p">
+            <strong class="ph b">Return type:</strong> <code class="ph codeph">timestamp</code>
+          </p>
+          <p class="p">
+        <strong class="ph b">Added in:</strong> <span class="keyword">Impala 2.10</span>
+      </p>
+          <p class="p">
+        <strong class="ph b">Usage notes:</strong>
+      </p>
+          <p class="p">
+            Similar to the <code class="ph codeph">now()</code> or <code class="ph codeph">current_timestamp()</code> functions,
+            but does not use the local time zone as those functions do. Use <code class="ph codeph">utc_timestamp()</code>
+            to record <code class="ph codeph">TIMESTAMP</code> values that are interoperable with
+            servers around the world, in arbitrary time zones, without the need for
+            additional conversion functions to standardize the time zone of each
+            value representing a date/time.
+          </p>
+          <p class="p">
+            For working with date/time values represented as integer values, you can convert
+            back and forth between <code class="ph codeph">TIMESTAMP</code> and <code class="ph codeph">BIGINT</code>
+            with the <code class="ph codeph">unix_micros_to_utc_timestamp()</code> and
+            <code class="ph codeph">utc_to_unix_micros()</code> functions. The integer values represent
+            the number of microseconds since the Unix epoch (midnight on January 1, 1970).
+          </p>
+          <p class="p">
+        <strong class="ph b">Examples:</strong>
+      </p>
+          <p class="p">
+            The following example shows how <code class="ph codeph">now()</code> and <code class="ph codeph">current_timestamp()</code>
+            represent the current date/time in the local time zone (in this case, UTC-7), while
+            <code class="ph codeph">utc_timestamp()</code> represents the same date/time in the standardized UTC
+            time zone:
+          </p>
+<pre class="pre codeblock"><code>
+select now(), utc_timestamp();
++-------------------------------+-------------------------------+
+| now()                         | utc_timestamp()               |
++-------------------------------+-------------------------------+
+| 2017-10-01 23:33:58.919688000 | 2017-10-02 06:33:58.919688000 |
++-------------------------------+-------------------------------+
+
+select current_timestamp(), utc_timestamp();
++-------------------------------+-------------------------------+
+| current_timestamp()           | utc_timestamp()               |
++-------------------------------+-------------------------------+
+| 2017-10-01 23:34:07.400642000 | 2017-10-02 06:34:07.400642000 |
++-------------------------------+-------------------------------+
+</code></pre>
+        </dd>
+
+      
+
+      
+
         <dt class="dt dlterm" id="datetime_functions__weekofyear">
           
           <code class="ph codeph">weekofyear(timestamp date)</code>



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