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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-4288) Indexes not used when ordering by primary key
Date Wed, 14 Mar 2018 13:39:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-4288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16398596#comment-16398596
] 

Hudson commented on PHOENIX-4288:
---------------------------------

FAILURE: Integrated in Jenkins build Phoenix-4.x-HBase-0.98 #1833 (See [https://builds.apache.org/job/Phoenix-4.x-HBase-0.98/1833/])
PHOENIX-4288 Indexes not used when ordering by primary key (maryannxue: rev 541d6ac22866fe7571365e063a23108c6ca1ea63)
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/ScanPlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/compile/TraceQueryPlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/LiteralResultIterationPlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/optimize/QueryOptimizer.java
* (add) phoenix-core/src/main/java/org/apache/phoenix/optimize/Cost.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/AggregatePlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/UnionPlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/query/QueryServices.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/query/QueryServicesOptions.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/BaseQueryPlan.java
* (add) phoenix-core/src/it/java/org/apache/phoenix/end2end/CostBasedDecisionIT.java
* (add) phoenix-core/src/main/java/org/apache/phoenix/util/CostUtil.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/compile/ListJarsQueryPlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/jdbc/PhoenixStatement.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/CorrelatePlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/HashJoinPlan.java
* (edit) phoenix-core/src/test/java/org/apache/phoenix/query/ParallelIteratorsSplitTest.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/ClientScanPlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/DelegateQueryPlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/ClientAggregatePlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/SortMergeJoinPlan.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/compile/QueryPlan.java


> Indexes not used when ordering by primary key
> ---------------------------------------------
>
>                 Key: PHOENIX-4288
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4288
>             Project: Phoenix
>          Issue Type: Sub-task
>            Reporter: Marcin Januszkiewicz
>            Assignee: Maryann Xue
>            Priority: Major
>              Labels: CostBasedOptimization
>             Fix For: 4.14.0, 5.0.0
>
>         Attachments: PHOENIX-4288.patch
>
>
> We have a table
> CREATE TABLE t (
>   rowkey VARCHAR PRIMARY KEY,
>   c1 VARCHAR,
>   c2 VARCHAR
> )
> which we want to query by doing partial matches on c1, and keep the ordering of the source
table:
> SELECT rowkey, c1, c2 FROM t where c1 LIKE 'X0%' ORDER BY rowkey;
> We expect most queries to select a small subset of the table, so we create an index to
speed up searches:
> CREATE LOCAL INDEX t_c1_ix ON t (c1);
> However, this index will not be used since Phoenix will always choose not to resort the
data.
> In our actual use case, adding index hints is not a practical solution.
> See also discussion at:
> https://lists.apache.org/thread.html/26ab58288eb811d2f074c3f89067163d341e5531fb581f3b2486cf43@%3Cuser.phoenix.apache.org%3E



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