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https://issues.apache.org/jira/browse/PHOENIX-4508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16317181#comment-16317181
]
Hudson commented on PHOENIX-4508:
---------------------------------
SUCCESS: Integrated in Jenkins build Phoenix-master #1909 (See
[https://builds.apache.org/job/Phoenix-master/1909/])
PHOENIX-4508 Order-by not optimized in sort-merge-join on salted tables
(maryannxue: rev b3854d2c16fa102e087ecdfba6f366ba4d174dc6)
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/compile/TupleProjectionCompiler.java
* (edit)
phoenix-core/src/it/java/org/apache/phoenix/end2end/SortMergeJoinMoreIT.java
> Order-by not optimized in sort-merge-join on salted tables
> ----------------------------------------------------------
>
> Key: PHOENIX-4508
> URL: https://issues.apache.org/jira/browse/PHOENIX-4508
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.13.2
> Reporter: Flavio Pompermaier
> Assignee: Maryann Xue
> Labels: planner, query
> Fix For: 5.0, 4.13.0, 4.14.0
>
> Attachments: PHOENIX-4508.patch
>
>
> In my Phoenix tables I found that one query ens successfully while another
> one, logically equal, does not (unless that I don't apply some tuning to
> timeouts).
> The 2 queries extract the same data but, while the first query terminates the
> second does not.
> PS: without the USE_SORT_MERGE_JOIN both queries weren't working
> ----
> h2. First query
> {code:sql}
> SELECT /*+ USE_SORT_MERGE_JOIN */ COUNT(*)
> FROM PEOPLE ds JOIN MYTABLE l ON ds.PERSON_ID = l.LOCALID
> WHERE l.EID IS NULL AND l.DSID = 'PEOPLE' AND l.HAS_CANDIDATES = FALSE;
> {code}
> +---------------------------------------------------------------------------------------------------------------+-----------------+----------------+----------------+
> | PLAN
> | EST_BYTES_READ | EST_ROWS_READ |
> EST_INFO_TS |
> +---------------------------------------------------------------------------------------------------------------+-----------------+----------------+----------------+
> | SORT-MERGE-JOIN (INNER) TABLES
> | 14155777900 | 12077867 |
> 1513754378759 |
> | CLIENT 42-CHUNK 6168903 ROWS 11324622221 BYTES PARALLEL 3-WAY FULL SCAN
> OVER PEOPLE | 14155777900 | 12077867 |
> 1513754378759 |
> | SERVER FILTER BY FIRST KEY ONLY
> | 14155777900 | 12077867 |
> 1513754378759 |
> | CLIENT MERGE SORT
> | 14155777900 | 12077867 |
> 1513754378759 |
> | AND (SKIP MERGE)
> | 14155777900 | 12077867 |
> 1513754378759 |
> | CLIENT 15-CHUNK 5908964 ROWS 2831155679 BYTES PARALLEL 15-WAY RANGE
> SCAN OVER MYTABLE [0] - [2] | 14155777900 | 12077867 |
> 1513754378759 |
> | SERVER FILTER BY (EID IS NULL AND DSID = 'PEOPLE' AND
> HAS_CANDIDATES = false) | 14155777900 | 12077867
> | 1513754378759 |
> | SERVER SORTED BY [L.LOCALID]
> | 14155777900 | 12077867 |
> 1513754378759 |
> | CLIENT MERGE SORT
> | 14155777900 | 12077867 |
> 1513754378759 |
> | CLIENT AGGREGATE INTO SINGLE ROW
> | 14155777900 | 12077867 |
> 1513754378759 |
> +---------------------------------------------------------------------------------------------------------------+-----------------+----------------+----------------+
> 10 rows selected (0.041 seconds)
> ----
> h2. Second query
> {code:sql}
> SELECT /*+ USE_SORT_MERGE_JOIN */ COUNT(*)
> FROM (SELECT LOCALID FROM MYTABLE
> WHERE EID IS NULL AND DSID = 'PEOPLE' AND HAS_CANDIDATES = FALSE) l JOIN
> PEOPLE ds ON ds.PERSON_ID = l.LOCALID;
> {code}
> +--------------------------------------------------------------------------------------------------------------+-----------------+----------------+----------------+
> | PLAN
> | EST_BYTES_READ | EST_ROWS_READ |
> EST_INFO_TS |
> +--------------------------------------------------------------------------------------------------------------+-----------------+----------------+----------------+
> | SORT-MERGE-JOIN (INNER) TABLES
> | 14155777900 | 12077867 |
> 1513754378759 |
> | CLIENT 15-CHUNK 5908964 ROWS 2831155679 BYTES PARALLEL 3-WAY RANGE SCAN
> OVER MYTABLE [0] - [2] | 14155777900 | 12077867 | 1513754378759 |
> | SERVER FILTER BY (EID IS NULL AND DSID = 'PEOPLE' AND
> HAS_CANDIDATES = false) | 14155777900 | 12077867 |
> 1513754378759 |
> | CLIENT MERGE SORT
> | 14155777900 | 12077867 |
> 1513754378759 |
> | AND (SKIP MERGE)
> | 14155777900 | 12077867 |
> 1513754378759 |
> | CLIENT 42-CHUNK 6168903 ROWS 11324622221 BYTES PARALLEL 42-WAY FULL
> SCAN OVER PEOPLE | 14155777900 | 12077867 |
> 1513754378759 |
> | SERVER FILTER BY FIRST KEY ONLY
> | 14155777900 | 12077867 |
> 1513754378759 |
> | SERVER SORTED BY [DS.PERSON_ID]
> | 14155777900 | 12077867 |
> 1513754378759 |
> | CLIENT MERGE SORT
> | 14155777900 | 12077867 |
> 1513754378759 |
> | CLIENT AGGREGATE INTO SINGLE ROW
> | 14155777900 | 12077867 |
> 1513754378759 |
> +--------------------------------------------------------------------------------------------------------------+-----------------+----------------+----------------+
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