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From jihoon...@apache.org
Subject svn commit: r1710773 [14/39] - in /tajo/site/docs: 0.11.0/ 0.11.0/_sources/ 0.11.0/_sources/backup_and_restore/ 0.11.0/_sources/configuration/ 0.11.0/_sources/functions/ 0.11.0/_sources/getting_started/ 0.11.0/_sources/index/ 0.11.0/_sources/partitioni...
Date Tue, 27 Oct 2015 11:04:36 GMT
Added: tajo/site/docs/0.11.0/configuration/tajo_master_configuration.html
URL: http://svn.apache.org/viewvc/tajo/site/docs/0.11.0/configuration/tajo_master_configuration.html?rev=1710773&view=auto
==============================================================================
--- tajo/site/docs/0.11.0/configuration/tajo_master_configuration.html (added)
+++ tajo/site/docs/0.11.0/configuration/tajo_master_configuration.html Tue Oct 27 11:04:33 2015
@@ -0,0 +1,299 @@
+
+
+<!DOCTYPE html>
+<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
+<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  
+  <title>Tajo Master Configuration &mdash; Apache Tajo 0.11.0 documentation</title>
+  
+
+  
+  
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+  
+  <link href='https://fonts.googleapis.com/css?family=Lato:400,700|Roboto+Slab:400,700|Inconsolata:400,700' rel='stylesheet' type='text/css'>
+
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+  
+  
+    <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
+  
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+  
+    <link rel="top" title="Apache Tajo 0.11.0 documentation" href="../index.html"/>
+        <link rel="up" title="Configuration" href="../configuration.html"/>
+        <link rel="next" title="Worker Configuration" href="worker_configuration.html"/>
+        <link rel="prev" title="Cluster Setup" href="cluster_setup.html"/> 
+
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+  <script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
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+</head>
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+<body class="wy-body-for-nav" role="document">
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+        <div role="search">
+  <form id ="rtd-search-form" class="wy-form" action="../search.html" method="get">
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+      </div>
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+      <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
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+            <ul class="current">
+<li class="toctree-l1"><a class="reference internal" href="../introduction.html">Introduction</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../getting_started.html">Getting Started</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../getting_started.html#prerequisites">Prerequisites</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../getting_started.html#dowload-and-unpack-the-source-code">Dowload and unpack the source code</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../getting_started.html#build-source-code">Build source code</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../getting_started.html#setting-up-a-local-tajo-cluster">Setting up a local Tajo cluster</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../getting_started.html#first-query-execution">First query execution</a></li>
+</ul>
+</li>
+<li class="toctree-l1 current"><a class="reference internal" href="../configuration.html">Configuration</a><ul class="current">
+<li class="toctree-l2"><a class="reference internal" href="preliminary.html">Preliminary</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cluster_setup.html">Cluster Setup</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="">Tajo Master Configuration</a></li>
+<li class="toctree-l2"><a class="reference internal" href="worker_configuration.html">Worker Configuration</a></li>
+<li class="toctree-l2"><a class="reference internal" href="catalog_configuration.html">Catalog Configuration</a></li>
+<li class="toctree-l2"><a class="reference internal" href="ha_configuration.html">High Availability for TajoMaster</a></li>
+<li class="toctree-l2"><a class="reference internal" href="service_config_defaults.html">Cluster Service Configuration Defaults</a></li>
+<li class="toctree-l2"><a class="reference internal" href="tajo-site-xml.html">The tajo-site.xml File</a></li>
+<li class="toctree-l2"><a class="reference internal" href="catalog-site-xml.html">The catalog-site.xml File</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../tsql.html">Tajo Shell (TSQL)</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../tsql/meta_command.html">Meta Commands</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../tsql/dfs_command.html">Executing HDFS commands</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../tsql/variables.html">Session Variables</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../tsql/admin_command.html">Administration Commands</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../tsql/intro.html">Introducing to TSQL</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../tsql/single_command.html">Executing a single command</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../tsql/execute_file.html">Executing Queries from Files</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../tsql/background_command.html">Executing as background process</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../sql_language.html">SQL Language</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../sql_language/data_model.html">Data Model</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../sql_language/ddl.html">Data Definition Language</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../sql_language/insert.html">INSERT (OVERWRITE) INTO</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../sql_language/alter_table.html">ALTER TABLE</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../sql_language/queries.html">Queries</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../sql_language/joins.html">Joins</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../sql_language/sql_expression.html">SQL Expressions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../sql_language/predicates.html">Predicates</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../time_zone.html">Time Zone</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../time_zone.html#server-cluster-time-zone">Server Cluster Time Zone</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../time_zone.html#table-time-zone">Table Time Zone</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../time_zone.html#client-time-zone">Client Time Zone</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../time_zone.html#time-zone-id">Time Zone ID</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../time_zone.html#examples-of-time-zone">Examples of Time Zone</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../functions.html">Functions</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../functions.html#built-in-scalar-functions">Built-in Scalar Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../functions.html#built-in-aggregation-functions">Built-in Aggregation Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../functions.html#built-in-window-functions">Built-in Window Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../functions.html#user-defined-functions">User-defined Functions</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../table_management.html">Table Management</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../table_management/table_overview.html">Overview of Tajo Tables</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../table_management/tablespaces.html">Tablespaces</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../table_management/file_formats.html">File Formats</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../table_management/compression.html">Compression</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../table_partitioning.html">Table Partitioning</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../partitioning/intro_to_partitioning.html">Introduction to Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../partitioning/column_partitioning.html">Column Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../partitioning/range_partitioning.html">Range Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../partitioning/hash_partitioning.html">Hash Partitioning</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../storage_plugins.html">Storage Plugin</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../storage_plugins/overview.html">Storage Plugin Overview</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../storage_plugins/postgresql.html">PostgreSQL Storage Handler</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../index_overview.html">Index (Experimental Feature)</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../index/types.html">Index Types</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../index/how_to_use.html">How to use index?</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../index/future_work.html">Future Works</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../backup_and_restore.html">Backup and Restore</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../backup_and_restore/catalog.html">Backup and Restore Catalog</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../hive_integration.html">Hive Integration</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../hbase_integration.html">HBase Integration</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../hbase_integration.html#create-table">CREATE TABLE</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../hbase_integration.html#drop-table">DROP TABLE</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../hbase_integration.html#insert-overwrite-into">INSERT (OVERWRITE) INTO</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../hbase_integration.html#usage">Usage</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../swift_integration.html">OpenStack Swift Integration</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../swift_integration.html#swift-configuration">Swift configuration</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../swift_integration.html#hadoop-configurations">Hadoop configurations</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../swift_integration.html#tajo-configuration">Tajo configuration</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../swift_integration.html#querying-on-swift">Querying on Swift</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../jdbc_driver.html">Tajo JDBC Driver</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../jdbc_driver.html#how-to-get-jdbc-driver">How to get JDBC driver</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../jdbc_driver.html#setting-the-classpath">Setting the CLASSPATH</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../jdbc_driver.html#connecting-to-the-tajo-cluster-instance">Connecting to the Tajo cluster instance</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../jdbc_driver.html#connection-parameters">Connection Parameters</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../jdbc_driver.html#an-example-jdbc-client">An Example JDBC Client</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../tajo_client_api.html">Tajo Client API</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../faq.html">FAQ</a></li>
+</ul>
+
+        
+      </div>
+      &nbsp;
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+      <nav class="wy-nav-top" role="navigation" aria-label="top navigation">
+        <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
+        <a href="../index.html">Apache Tajo</a>
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+          <li><a href="../configuration.html">Configuration</a> &raquo;</li>
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+    <li>Tajo Master Configuration</li>
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+        
+          <a href="../_sources/configuration/tajo_master_configuration.txt" rel="nofollow"> View page source</a>
+        
+      </li>
+  </ul>
+  <hr/>
+</div>
+          <div role="main">
+            
+  <div class="section" id="tajo-master-configuration">
+<h1>Tajo Master Configuration<a class="headerlink" href="#tajo-master-configuration" title="Permalink to this headline">¶</a></h1>
+<div class="section" id="tajo-rootdir">
+<h2>Tajo Rootdir<a class="headerlink" href="#tajo-rootdir" title="Permalink to this headline">¶</a></h2>
+<p>Tajo uses HDFS as a primary storage layer. So, one Tajo cluster instance should have one tajo rootdir. A user is allowed to specific your tajo rootdir as follows:</p>
+<div class="highlight-xml"><div class="highlight"><pre><span class="nt">&lt;property&gt;</span>
+  <span class="nt">&lt;name&gt;</span>tajo.rootdir<span class="nt">&lt;/name&gt;</span>
+  <span class="nt">&lt;value&gt;</span>hdfs://namenode_hostname:port/path<span class="nt">&lt;/value&gt;</span>
+<span class="nt">&lt;/property&gt;</span>
+</pre></div>
+</div>
+<p>Tajo rootdir must be a url form like <code class="docutils literal"><span class="pre">scheme://hostname:port/path</span></code>. The current implementaion only supports <code class="docutils literal"><span class="pre">hdfs://</span></code> and <code class="docutils literal"><span class="pre">file://</span></code> schemes. The default value is <code class="docutils literal"><span class="pre">file:///tmp/tajo-${user.name}/</span></code>.</p>
+</div>
+<div class="section" id="tajomaster-heap-memory-size">
+<h2>TajoMaster Heap Memory Size<a class="headerlink" href="#tajomaster-heap-memory-size" title="Permalink to this headline">¶</a></h2>
+<p>The environment variable TAJO_MASTER_HEAPSIZE in conf/tajo-env.sh allow Tajo Master to use the specified heap memory size.</p>
+<p>If you want to adjust heap memory size, set <code class="docutils literal"><span class="pre">TAJO_MASTER_HEAPSIZE</span></code> variable in <code class="docutils literal"><span class="pre">conf/tajo-env.sh</span></code> with a proper size as follows:</p>
+<div class="highlight-sh"><div class="highlight"><pre><span class="nv">TAJO_MASTER_HEAPSIZE</span><span class="o">=</span>2000
+</pre></div>
+</div>
+<p>The default size is 1000 (1GB).</p>
+</div>
+</div>
+
+
+          </div>
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+  
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+</html>
\ No newline at end of file

Added: tajo/site/docs/0.11.0/configuration/worker_configuration.html
URL: http://svn.apache.org/viewvc/tajo/site/docs/0.11.0/configuration/worker_configuration.html?rev=1710773&view=auto
==============================================================================
--- tajo/site/docs/0.11.0/configuration/worker_configuration.html (added)
+++ tajo/site/docs/0.11.0/configuration/worker_configuration.html Tue Oct 27 11:04:33 2015
@@ -0,0 +1,425 @@
+
+
+<!DOCTYPE html>
+<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
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+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  
+  <title>Worker Configuration &mdash; Apache Tajo 0.11.0 documentation</title>
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+  <link href='https://fonts.googleapis.com/css?family=Lato:400,700|Roboto+Slab:400,700|Inconsolata:400,700' rel='stylesheet' type='text/css'>
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+    <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
+  
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+    <link rel="top" title="Apache Tajo 0.11.0 documentation" href="../index.html"/>
+        <link rel="up" title="Configuration" href="../configuration.html"/>
+        <link rel="next" title="Catalog Configuration" href="catalog_configuration.html"/>
+        <link rel="prev" title="Tajo Master Configuration" href="tajo_master_configuration.html"/> 
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+  <form id ="rtd-search-form" class="wy-form" action="../search.html" method="get">
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+<li class="toctree-l1"><a class="reference internal" href="../introduction.html">Introduction</a></li>
+<li class="toctree-l1"><a class="reference internal" href="../getting_started.html">Getting Started</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../getting_started.html#prerequisites">Prerequisites</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../getting_started.html#dowload-and-unpack-the-source-code">Dowload and unpack the source code</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../getting_started.html#build-source-code">Build source code</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../getting_started.html#setting-up-a-local-tajo-cluster">Setting up a local Tajo cluster</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../getting_started.html#first-query-execution">First query execution</a></li>
+</ul>
+</li>
+<li class="toctree-l1 current"><a class="reference internal" href="../configuration.html">Configuration</a><ul class="current">
+<li class="toctree-l2"><a class="reference internal" href="preliminary.html">Preliminary</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cluster_setup.html">Cluster Setup</a></li>
+<li class="toctree-l2"><a class="reference internal" href="tajo_master_configuration.html">Tajo Master Configuration</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="">Worker Configuration</a></li>
+<li class="toctree-l2"><a class="reference internal" href="catalog_configuration.html">Catalog Configuration</a></li>
+<li class="toctree-l2"><a class="reference internal" href="ha_configuration.html">High Availability for TajoMaster</a></li>
+<li class="toctree-l2"><a class="reference internal" href="service_config_defaults.html">Cluster Service Configuration Defaults</a></li>
+<li class="toctree-l2"><a class="reference internal" href="tajo-site-xml.html">The tajo-site.xml File</a></li>
+<li class="toctree-l2"><a class="reference internal" href="catalog-site-xml.html">The catalog-site.xml File</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../tsql.html">Tajo Shell (TSQL)</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../tsql/meta_command.html">Meta Commands</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../tsql/dfs_command.html">Executing HDFS commands</a></li>
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+    <li><a href="../index.html">Docs</a> &raquo;</li>
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+          <li><a href="../configuration.html">Configuration</a> &raquo;</li>
+      
+    <li>Worker Configuration</li>
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+            
+  <div class="section" id="worker-configuration">
+<h1>Worker Configuration<a class="headerlink" href="#worker-configuration" title="Permalink to this headline">¶</a></h1>
+<div class="section" id="worker-heap-memory-size">
+<h2>Worker Heap Memory Size<a class="headerlink" href="#worker-heap-memory-size" title="Permalink to this headline">¶</a></h2>
+<p>The environment variable <code class="docutils literal"><span class="pre">TAJO_WORKER_HEAPSIZE</span></code> in <code class="docutils literal"><span class="pre">conf/tajo-env.sh</span></code> allow Tajo Worker to use the specified heap memory size.</p>
+<p>If you want to adjust heap memory size, set <code class="docutils literal"><span class="pre">TAJO_WORKER_HEAPSIZE</span></code> variable in <code class="docutils literal"><span class="pre">conf/tajo-env.sh</span></code> with a proper size as follows:</p>
+<div class="highlight-bash"><div class="highlight"><pre><span class="nv">TAJO_WORKER_HEAPSIZE</span><span class="o">=</span>8000
+</pre></div>
+</div>
+<p>The default size is 1000 (1GB).</p>
+</div>
+<div class="section" id="temporary-data-directory">
+<h2>Temporary Data Directory<a class="headerlink" href="#temporary-data-directory" title="Permalink to this headline">¶</a></h2>
+<p>TajoWorker stores temporary data on local file system due to out-of-core algorithms. It is possible to specify one or more temporary data directories where temporary data will be stored.</p>
+<p><code class="docutils literal"><span class="pre">tajo-site.xml</span></code></p>
+<div class="highlight-xml"><div class="highlight"><pre><span class="nt">&lt;property&gt;</span>
+  <span class="nt">&lt;name&gt;</span>tajo.worker.tmpdir.locations<span class="nt">&lt;/name&gt;</span>
+  <span class="nt">&lt;value&gt;</span>/disk1/tmpdir,/disk2/tmpdir,/disk3/tmpdir<span class="nt">&lt;/value&gt;</span>
+<span class="nt">&lt;/property&gt;</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="maximum-number-of-parallel-running-tasks-for-each-worker">
+<h2>Maximum number of parallel running tasks for each worker<a class="headerlink" href="#maximum-number-of-parallel-running-tasks-for-each-worker" title="Permalink to this headline">¶</a></h2>
+<p>In Tajo, the capacity of running tasks in parallel are determined by available resources and workload of running queries. In order to specify it, please see [Worker Resources] (#ResourceConfiguration) section.</p>
+</div>
+<div class="section" id="worker-resources">
+<h2>Worker Resources<a class="headerlink" href="#worker-resources" title="Permalink to this headline">¶</a></h2>
+<p>Each worker can execute multiple tasks simultaneously.</p>
+<p>In Tajo, users can specify the number of cpu cores, the total size of memory and the number of disks for each worker. Available resources affect how many tasks are executed simultaneously.
+CPU cores are a unit for expressing CPU parallelism, the unit for memory is megabytes and the unit for disks is the number of disk</p>
+<p>In order to specify the resource capacity of each worker, you should add the following configs to <code class="docutils literal"><span class="pre">tajo-site.xml</span></code> :</p>
+<table border="1" class="docutils">
+<colgroup>
+<col width="32%" />
+<col width="12%" />
+<col width="20%" />
+<col width="35%" />
+</colgroup>
+<thead valign="bottom">
+<tr class="row-odd"><th class="head">property name</th>
+<th class="head">value type</th>
+<th class="head">default value</th>
+<th class="head">description</th>
+</tr>
+</thead>
+<tbody valign="top">
+<tr class="row-even"><td>tajo.worker.resource.cpu-cores</td>
+<td>Integer</td>
+<td>available cpu-cores</td>
+<td>the number of cpu cores</td>
+</tr>
+<tr class="row-odd"><td>tajo.worker.resource.memory-mb</td>
+<td>Integer</td>
+<td>available jvm heap</td>
+<td>memory size (MB)</td>
+</tr>
+<tr class="row-even"><td>tajo.worker.resource.disks</td>
+<td>Integer</td>
+<td>1</td>
+<td>the number of disks</td>
+</tr>
+<tr class="row-odd"><td>tajo.task.resource.min.memory-mb</td>
+<td>Integer</td>
+<td>500</td>
+<td>minimum allocatable memory per task</td>
+</tr>
+<tr class="row-even"><td>tajo.qm.resource.min.memory-mb</td>
+<td>Integer</td>
+<td>500</td>
+<td>minimum allocatable memory per query</td>
+</tr>
+</tbody>
+</table>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p class="last">Currently, QueryMaster requests 500MB memory and 1 cpu-core per task for the backward compatibility.
+If you want to give more memory, you can set to <code class="docutils literal"><span class="pre">tajo.qm.resource.min.memory-mb</span></code></p>
+</div>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p class="last">If <code class="docutils literal"><span class="pre">tajo.worker.resource.dfs-dir-aware</span></code> is set to <code class="docutils literal"><span class="pre">true</span></code> in <code class="docutils literal"><span class="pre">tajo-site.xml</span></code>, the worker will aware of and use the number of HDFS datanode&#8217;s data dirs in the node.
+In other words, <code class="docutils literal"><span class="pre">tajo.worker.resource.disks</span></code> is ignored.</p>
+</div>
+<div class="section" id="example">
+<h3>Example<a class="headerlink" href="#example" title="Permalink to this headline">¶</a></h3>
+<p>Assume that you want to give 15GB Jvm heap, 1GB memory per task, 4 disks, and 12 cores on each worker. The example configuration is as follows:</p>
+<p><code class="docutils literal"><span class="pre">tajo-env.sh</span></code></p>
+<div class="highlight-bash"><div class="highlight"><pre><span class="nb">export </span><span class="nv">TAJO_WORKER_HEAPSIZE</span><span class="o">=</span>15000
+</pre></div>
+</div>
+<p><code class="docutils literal"><span class="pre">tajo-site.xml</span></code></p>
+<div class="highlight-xml"><div class="highlight"><pre><span class="nt">&lt;property&gt;</span>
+  <span class="nt">&lt;name&gt;</span>tajo.worker.resource.tajo.worker.resource.cpu-cores<span class="nt">&lt;/name&gt;</span>
+  <span class="nt">&lt;value&gt;</span>12<span class="nt">&lt;/value&gt;</span>
+<span class="nt">&lt;/property&gt;</span>
+
+ <span class="nt">&lt;property&gt;</span>
+  <span class="nt">&lt;name&gt;</span>tajo.task.resource.min.memory-mb<span class="nt">&lt;/name&gt;</span>
+  <span class="nt">&lt;value&gt;</span>1000<span class="nt">&lt;/value&gt;</span>
+<span class="nt">&lt;/property&gt;</span>
+
+<span class="nt">&lt;property&gt;</span>
+  <span class="nt">&lt;name&gt;</span>tajo.worker.resource.disks<span class="nt">&lt;/name&gt;</span>
+  <span class="nt">&lt;value&gt;</span>4<span class="nt">&lt;/value&gt;</span>
+<span class="nt">&lt;/property&gt;</span>
+</pre></div>
+</div>
+<ul class="simple">
+<li>Example with HDFS</li>
+</ul>
+<p><code class="docutils literal"><span class="pre">tajo-env.sh</span></code></p>
+<div class="highlight-bash"><div class="highlight"><pre><span class="nb">export </span><span class="nv">TAJO_WORKER_HEAPSIZE</span><span class="o">=</span>15000
+</pre></div>
+</div>
+<p><code class="docutils literal"><span class="pre">tajo-site.xml</span></code></p>
+<div class="highlight-xml"><div class="highlight"><pre> <span class="nt">&lt;property&gt;</span>
+  <span class="nt">&lt;name&gt;</span>tajo.task.resource.min.memory-mb<span class="nt">&lt;/name&gt;</span>
+  <span class="nt">&lt;value&gt;</span>1000<span class="nt">&lt;/value&gt;</span>
+<span class="nt">&lt;/property&gt;</span>
+
+<span class="nt">&lt;property&gt;</span>
+  <span class="nt">&lt;name&gt;</span>tajo.worker.resource.dfs-dir-aware<span class="nt">&lt;/name&gt;</span>
+  <span class="nt">&lt;value&gt;</span>true<span class="nt">&lt;/value&gt;</span>
+<span class="nt">&lt;/property&gt;</span>
+</pre></div>
+</div>
+<ul class="simple">
+<li>Example with S3</li>
+</ul>
+<p><code class="docutils literal"><span class="pre">tajo-env.sh</span></code></p>
+<div class="highlight-bash"><div class="highlight"><pre><span class="nb">export </span><span class="nv">TAJO_WORKER_HEAPSIZE</span><span class="o">=</span>15000
+</pre></div>
+</div>
+<p><code class="docutils literal"><span class="pre">tajo-site.xml</span></code></p>
+<div class="highlight-xml"><div class="highlight"><pre> <span class="nt">&lt;property&gt;</span>
+  <span class="nt">&lt;name&gt;</span>tajo.task.resource.min.memory-mb<span class="nt">&lt;/name&gt;</span>
+  <span class="nt">&lt;value&gt;</span>1000<span class="nt">&lt;/value&gt;</span>
+<span class="nt">&lt;/property&gt;</span>
+
+<span class="nt">&lt;property&gt;</span>
+  <span class="nt">&lt;name&gt;</span>tajo.worker.resource.disk.parallel-execution.num<span class="nt">&lt;/name&gt;</span>
+  <span class="nt">&lt;value&gt;</span>4<span class="nt">&lt;/value&gt;</span>
+<span class="nt">&lt;/property&gt;</span>
+</pre></div>
+</div>
+</div>
+</div>
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+<li class="toctree-l2"><a class="reference internal" href="configuration/ha_configuration.html">High Availability for TajoMaster</a></li>
+<li class="toctree-l2"><a class="reference internal" href="configuration/service_config_defaults.html">Cluster Service Configuration Defaults</a></li>
+<li class="toctree-l2"><a class="reference internal" href="configuration/tajo-site-xml.html">The tajo-site.xml File</a></li>
+<li class="toctree-l2"><a class="reference internal" href="configuration/catalog-site-xml.html">The catalog-site.xml File</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="tsql/meta_command.html">Meta Commands</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="tsql/admin_command.html">Administration Commands</a></li>
+<li class="toctree-l2"><a class="reference internal" href="tsql/intro.html">Introducing to TSQL</a></li>
+<li class="toctree-l2"><a class="reference internal" href="tsql/single_command.html">Executing a single command</a></li>
+<li class="toctree-l2"><a class="reference internal" href="tsql/execute_file.html">Executing Queries from Files</a></li>
+<li class="toctree-l2"><a class="reference internal" href="tsql/background_command.html">Executing as background process</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="sql_language.html">SQL Language</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="sql_language/data_model.html">Data Model</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="sql_language/insert.html">INSERT (OVERWRITE) INTO</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="sql_language/queries.html">Queries</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="sql_language/sql_expression.html">SQL Expressions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sql_language/predicates.html">Predicates</a></li>
+</ul>
+</li>
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+<li class="toctree-l2"><a class="reference internal" href="time_zone.html#examples-of-time-zone">Examples of Time Zone</a></li>
+</ul>
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+<li class="toctree-l1"><a class="reference internal" href="functions.html">Functions</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="functions.html#built-in-scalar-functions">Built-in Scalar Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="functions.html#built-in-aggregation-functions">Built-in Aggregation Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="functions.html#built-in-window-functions">Built-in Window Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="functions.html#user-defined-functions">User-defined Functions</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="table_management.html">Table Management</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="table_management/table_overview.html">Overview of Tajo Tables</a></li>
+<li class="toctree-l2"><a class="reference internal" href="table_management/tablespaces.html">Tablespaces</a></li>
+<li class="toctree-l2"><a class="reference internal" href="table_management/file_formats.html">File Formats</a></li>
+<li class="toctree-l2"><a class="reference internal" href="table_management/compression.html">Compression</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="table_partitioning.html">Table Partitioning</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="partitioning/intro_to_partitioning.html">Introduction to Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="partitioning/column_partitioning.html">Column Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="partitioning/range_partitioning.html">Range Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="partitioning/hash_partitioning.html">Hash Partitioning</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="storage_plugins.html">Storage Plugin</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="storage_plugins/overview.html">Storage Plugin Overview</a></li>
+<li class="toctree-l2"><a class="reference internal" href="storage_plugins/postgresql.html">PostgreSQL Storage Handler</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="index_overview.html">Index (Experimental Feature)</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="index/types.html">Index Types</a></li>
+<li class="toctree-l2"><a class="reference internal" href="index/how_to_use.html">How to use index?</a></li>
+<li class="toctree-l2"><a class="reference internal" href="index/future_work.html">Future Works</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="backup_and_restore.html">Backup and Restore</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="backup_and_restore/catalog.html">Backup and Restore Catalog</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="hive_integration.html">Hive Integration</a></li>
+<li class="toctree-l1"><a class="reference internal" href="hbase_integration.html">HBase Integration</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="hbase_integration.html#create-table">CREATE TABLE</a></li>
+<li class="toctree-l2"><a class="reference internal" href="hbase_integration.html#drop-table">DROP TABLE</a></li>
+<li class="toctree-l2"><a class="reference internal" href="hbase_integration.html#insert-overwrite-into">INSERT (OVERWRITE) INTO</a></li>
+<li class="toctree-l2"><a class="reference internal" href="hbase_integration.html#usage">Usage</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="swift_integration.html">OpenStack Swift Integration</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="swift_integration.html#swift-configuration">Swift configuration</a></li>
+<li class="toctree-l2"><a class="reference internal" href="swift_integration.html#hadoop-configurations">Hadoop configurations</a></li>
+<li class="toctree-l2"><a class="reference internal" href="swift_integration.html#tajo-configuration">Tajo configuration</a></li>
+<li class="toctree-l2"><a class="reference internal" href="swift_integration.html#querying-on-swift">Querying on Swift</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="jdbc_driver.html">Tajo JDBC Driver</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="jdbc_driver.html#how-to-get-jdbc-driver">How to get JDBC driver</a></li>
+<li class="toctree-l2"><a class="reference internal" href="jdbc_driver.html#setting-the-classpath">Setting the CLASSPATH</a></li>
+<li class="toctree-l2"><a class="reference internal" href="jdbc_driver.html#connecting-to-the-tajo-cluster-instance">Connecting to the Tajo cluster instance</a></li>
+<li class="toctree-l2"><a class="reference internal" href="jdbc_driver.html#connection-parameters">Connection Parameters</a></li>
+<li class="toctree-l2"><a class="reference internal" href="jdbc_driver.html#an-example-jdbc-client">An Example JDBC Client</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="tajo_client_api.html">Tajo Client API</a></li>
+<li class="toctree-l1 current"><a class="current reference internal" href="">FAQ</a></li>
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\ No newline at end of file

Added: tajo/site/docs/0.11.0/functions.html
URL: http://svn.apache.org/viewvc/tajo/site/docs/0.11.0/functions.html?rev=1710773&view=auto
==============================================================================
--- tajo/site/docs/0.11.0/functions.html (added)
+++ tajo/site/docs/0.11.0/functions.html Tue Oct 27 11:04:33 2015
@@ -0,0 +1,314 @@
+
+
+<!DOCTYPE html>
+<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
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+    <link rel="top" title="Apache Tajo 0.11.0 documentation" href="index.html"/>
+        <link rel="next" title="Data Type Functions and Operators" href="functions/data_type_func_and_operators.html"/>
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+<li class="toctree-l2"><a class="reference internal" href="getting_started.html#setting-up-a-local-tajo-cluster">Setting up a local Tajo cluster</a></li>
+<li class="toctree-l2"><a class="reference internal" href="getting_started.html#first-query-execution">First query execution</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="configuration/catalog_configuration.html">Catalog Configuration</a></li>
+<li class="toctree-l2"><a class="reference internal" href="configuration/ha_configuration.html">High Availability for TajoMaster</a></li>
+<li class="toctree-l2"><a class="reference internal" href="configuration/service_config_defaults.html">Cluster Service Configuration Defaults</a></li>
+<li class="toctree-l2"><a class="reference internal" href="configuration/tajo-site-xml.html">The tajo-site.xml File</a></li>
+<li class="toctree-l2"><a class="reference internal" href="configuration/catalog-site-xml.html">The catalog-site.xml File</a></li>
+</ul>
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+<li class="toctree-l1"><a class="reference internal" href="tsql.html">Tajo Shell (TSQL)</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="tsql/meta_command.html">Meta Commands</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="tsql/single_command.html">Executing a single command</a></li>
+<li class="toctree-l2"><a class="reference internal" href="tsql/execute_file.html">Executing Queries from Files</a></li>
+<li class="toctree-l2"><a class="reference internal" href="tsql/background_command.html">Executing as background process</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="sql_language.html">SQL Language</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="sql_language/data_model.html">Data Model</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sql_language/ddl.html">Data Definition Language</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sql_language/insert.html">INSERT (OVERWRITE) INTO</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sql_language/alter_table.html">ALTER TABLE</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sql_language/queries.html">Queries</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sql_language/joins.html">Joins</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sql_language/sql_expression.html">SQL Expressions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sql_language/predicates.html">Predicates</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="time_zone.html">Time Zone</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="time_zone.html#server-cluster-time-zone">Server Cluster Time Zone</a></li>
+<li class="toctree-l2"><a class="reference internal" href="time_zone.html#table-time-zone">Table Time Zone</a></li>
+<li class="toctree-l2"><a class="reference internal" href="time_zone.html#client-time-zone">Client Time Zone</a></li>
+<li class="toctree-l2"><a class="reference internal" href="time_zone.html#time-zone-id">Time Zone ID</a></li>
+<li class="toctree-l2"><a class="reference internal" href="time_zone.html#examples-of-time-zone">Examples of Time Zone</a></li>
+</ul>
+</li>
+<li class="toctree-l1 current"><a class="current reference internal" href="">Functions</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="#built-in-scalar-functions">Built-in Scalar Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="#built-in-aggregation-functions">Built-in Aggregation Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="#built-in-window-functions">Built-in Window Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="#user-defined-functions">User-defined Functions</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="table_management.html">Table Management</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="table_management/table_overview.html">Overview of Tajo Tables</a></li>
+<li class="toctree-l2"><a class="reference internal" href="table_management/tablespaces.html">Tablespaces</a></li>
+<li class="toctree-l2"><a class="reference internal" href="table_management/file_formats.html">File Formats</a></li>
+<li class="toctree-l2"><a class="reference internal" href="table_management/compression.html">Compression</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="table_partitioning.html">Table Partitioning</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="partitioning/intro_to_partitioning.html">Introduction to Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="partitioning/column_partitioning.html">Column Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="partitioning/range_partitioning.html">Range Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="partitioning/hash_partitioning.html">Hash Partitioning</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="storage_plugins.html">Storage Plugin</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="storage_plugins/overview.html">Storage Plugin Overview</a></li>
+<li class="toctree-l2"><a class="reference internal" href="storage_plugins/postgresql.html">PostgreSQL Storage Handler</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="index_overview.html">Index (Experimental Feature)</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="index/types.html">Index Types</a></li>
+<li class="toctree-l2"><a class="reference internal" href="index/how_to_use.html">How to use index?</a></li>
+<li class="toctree-l2"><a class="reference internal" href="index/future_work.html">Future Works</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="backup_and_restore.html">Backup and Restore</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="backup_and_restore/catalog.html">Backup and Restore Catalog</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="hive_integration.html">Hive Integration</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="hbase_integration.html#create-table">CREATE TABLE</a></li>
+<li class="toctree-l2"><a class="reference internal" href="hbase_integration.html#drop-table">DROP TABLE</a></li>
+<li class="toctree-l2"><a class="reference internal" href="hbase_integration.html#insert-overwrite-into">INSERT (OVERWRITE) INTO</a></li>
+<li class="toctree-l2"><a class="reference internal" href="hbase_integration.html#usage">Usage</a></li>
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+  <div class="section" id="functions">
+<h1>Functions<a class="headerlink" href="#functions" title="Permalink to this headline">¶</a></h1>
+<p>Tajo provides extensive supports for functions. It includes a lot of built-in functions and user-defined functions which is implemented in Python.</p>
+<div class="section" id="built-in-scalar-functions">
+<h2>Built-in Scalar Functions<a class="headerlink" href="#built-in-scalar-functions" title="Permalink to this headline">¶</a></h2>
+<div class="toctree-wrapper compound">
+<ul>
+<li class="toctree-l1"><a class="reference internal" href="functions/data_type_func_and_operators.html">Data Type Functions and Operators</a></li>
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+<li class="toctree-l1"><a class="reference internal" href="functions/string_func_and_operators.html">String Functions and Operators</a></li>
+<li class="toctree-l1"><a class="reference internal" href="functions/datetime_func_and_operators.html">DateTime Functions and Operators</a></li>
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+<li class="toctree-l1"><a class="reference internal" href="functions/json_func.html">JSON Functions</a></li>
+</ul>
+</div>
+</div>
+<div class="section" id="built-in-aggregation-functions">
+<h2>Built-in Aggregation Functions<a class="headerlink" href="#built-in-aggregation-functions" title="Permalink to this headline">¶</a></h2>
+<div class="toctree-wrapper compound">
+<ul>
+<li class="toctree-l1"><a class="reference internal" href="functions/agg_func.html">Aggregation Functions</a></li>
+</ul>
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+</div>
+<div class="section" id="built-in-window-functions">
+<h2>Built-in Window Functions<a class="headerlink" href="#built-in-window-functions" title="Permalink to this headline">¶</a></h2>
+<div class="toctree-wrapper compound">
+<ul>
+<li class="toctree-l1"><a class="reference internal" href="functions/window_func.html">Window Functions</a></li>
+</ul>
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+</div>
+<div class="section" id="user-defined-functions">
+<h2>User-defined Functions<a class="headerlink" href="#user-defined-functions" title="Permalink to this headline">¶</a></h2>
+<div class="toctree-wrapper compound">
+<ul>
+<li class="toctree-l1"><a class="reference internal" href="functions/python.html">Python Functions</a></li>
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