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https://issues.apache.org/jira/browse/HIVE-16924?focusedWorklogId=205069&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-205069
]
ASF GitHub Bot logged work on HIVE-16924:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 27/Feb/19 09:21
Start Date: 27/Feb/19 09:21
Worklog Time Spent: 10m
Work Description: miklosgergely commented on pull request #544:
HIVE-16924 Support distinct in presence of Group By
URL: https://github.com/apache/hive/pull/544#discussion_r260656545
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
##########
@@ -4195,21 +4195,18 @@ public static long unsetBit(long bitmap, int bitIdx) {
* DISTINCT, if present, will be handled when generating the SELECT.
*/
List<ASTNode> getGroupByForClause(QBParseInfo parseInfo, String dest) throws
SemanticException {
- // When *not* invoked by CalcitePlanner, return the DISTINCT as a GBY
- // CBO will handle the DISTINCT in
CalcitePlannerAction.genSelectLogicalPlan
ASTNode selectExpr = parseInfo.getSelForClause(dest);
Collection<ASTNode> aggregateFunction =
parseInfo.getDestToAggregationExprs().get(dest).values();
- if (isSelectDistinct(selectExpr) && !isGroupBy(selectExpr) &&
!isAggregateInSelect(selectExpr, aggregateFunction)) {
+ if (isSelectDistinct(selectExpr) && !hasGroupBySibling(selectExpr) &&
+ !isAggregateInSelect(selectExpr, aggregateFunction)) {
List<ASTNode> result = new ArrayList<ASTNode>(selectExpr == null ? 0 :
selectExpr.getChildCount());
Review comment:
removed
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Issue Time Tracking
-------------------
Worklog Id: (was: 205069)
Time Spent: 4h (was: 3h 50m)
> Support distinct in presence of Group By
> -----------------------------------------
>
> Key: HIVE-16924
> URL: https://issues.apache.org/jira/browse/HIVE-16924
> Project: Hive
> Issue Type: New Feature
> Components: Query Planning
> Reporter: Carter Shanklin
> Assignee: Miklos Gergely
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-16924.01.patch, HIVE-16924.02.patch,
> HIVE-16924.03.patch, HIVE-16924.04.patch, HIVE-16924.05.patch,
> HIVE-16924.06.patch, HIVE-16924.07.patch, HIVE-16924.08.patch,
> HIVE-16924.09.patch, HIVE-16924.10.patch
>
> Time Spent: 4h
> Remaining Estimate: 0h
>
> {code:sql}
> create table e011_01 (c1 int, c2 smallint);
> insert into e011_01 values (1, 1), (2, 2);
> {code}
> These queries should work:
> {code:sql}
> select distinct c1, count(*) from e011_01 group by c1;
> select distinct c1, avg(c2) from e011_01 group by c1;
> {code}
> Currently, you get :
> FAILED: SemanticException 1:52 SELECT DISTINCT and GROUP BY can not be in the
> same query. Error encountered near token 'c1'
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