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fix distinct without alias bug: disable pushdown aggregate with alias #1054

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marsishandsome
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What problem does this PR solve?

close #1039

Distinct without alias fails, e.g.

select distinct(c1), 1 as w from t;

What is changed and how it works?

disable pushdown aggregate with alias

Check List

Tests

  • Unit test
  • Integration test

@marsishandsome marsishandsome force-pushed the feature/fix-distinct-disable-pushdown branch from a0f011b to 940704d Compare August 21, 2019 06:20
@marsishandsome
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/run-all-tests tikv=v3.0.2 tidb=v3.0.2 pd=v3.0.2 mode=full

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@birdstorm birdstorm left a comment

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LGTM

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This is a temporary fix, because we have not found a best way to fix it.

@marsishandsome marsishandsome added the CHERRY-PICK cherry pick label Aug 21, 2019
@marsishandsome marsishandsome force-pushed the feature/fix-distinct-disable-pushdown branch from 940704d to 0ff5022 Compare August 21, 2019 07:17
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/run-all-tests tikv=v3.0.1 tidb=v3.0.1 pd=v3.0.1 mode=full

@zhexuany
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LGTM

@marsishandsome marsishandsome merged commit a1e6b79 into pingcap:master Aug 21, 2019
marsishandsome added a commit to marsishandsome/tispark that referenced this pull request Aug 21, 2019
marsishandsome added a commit that referenced this pull request Aug 29, 2019
* 2.2.0 -> 2.3.0 (#947)

* Add tests for primary key (#948)

* add changelog (#955)

* add multi-column tests (#954)

* fix range partition throw UnsupportedSyntaxException error (#960)

* fix view parsing problem (#953)

* make tispark can read from a hash partition table (#966)

* increase ci worker number (#965)

* update readme for tispark-2.1.2 release (#968)

* update document for pyspark (#975)

* fix one jar bug (#972)

* adding common port number used by spark cluster (#973)

* fix cost model in table scan (#977)

* create an UninitializedType for TypeDecimal (#979)

* update sparkr doc (#976)

* use spark-2.4.3 to run ut (#978)

* use spark-2.4.3 to run ut

* fix ci

* a better design for get auto table id (#980)

* fix bug: ci SpecialTiDBTypeTestSuite failed with tidb-3.0.1 (#984)

* improve TiConfiguration getPdAddrsString function (#963)

* bump grpc to 1.17 (#982)

* Add multiple-column PK tests (#970)

* add retry for batchGet (#986)

* use tispark self-made m2 cahce file (#990)

* add spark sql document for batch write (#991)

* add auto mode for test.data.load (#994)

* fix typo (#996)

* fix index scan bug (#995)

* refine doc (#1003)

* add tidb-3.0 compatibility document (#998)

* add tidb-3.0 compatibility document

* address code review

* address code review

* add log4j config document (#1008)

* refactor batch write region pre-split (#999)

* add ci simple mode (#1012)

* clean up redundant code (#997)

* prohibit agg or groupby pushdown on double read (#1004)

* remove split region code (#1015)

* add supported scala version (#1013)

* Fix scala compiler version (#1010)

* fix reflection bug for hdp release (#1017) (#1018)

(cherry picked from commit 118b12e)

* check by grammarly (#1022)

* add benchmark result for batch write (#1025)

* release tispark 2.1.3 (#1026) (#1035)

(cherry picked from commit 107eb2b)

* support setting random seed in daily regression test (#1032)

* Remove create in tisession (#1021)

* set tikv region size from 96M to 1M (#1031)

* adding unique indices test for batch write (#1014)

* use one unique seed (#1043)

* remove unused code (#1030)

* adding batch write pk insertion test (#1044)

* fix table not found bug in TiSession because of synchronization (#1041)

* fix test failure (#1051)

* fix reflection bug: pass in different arguments for different version of same function (#1037) (#1052)

(cherry picked from commit a5462c2)

* Adding pk and unique index test for batch write (#1049)

* fix distinct without alias bug: disable pushdown aggregate with alias (#1054)

* improve the doc (#1053)

* Refactor RegionStoreClient logic (#989)

* using stream rather removeIf (#1057)

* Remove redundant pre-write/commit logic in LockResolverTest (#1062)

* adding recreate flag when create tisession (#1064)

* fix issue 1047 (#1066)

* cleanup code in TiBatchWrite (#1067)

* release tispark-2.1.4 (#1068) (#1069)

(cherry picked from commit fd8068a)

* update document for tispark-2.1.4 release (#1070)
wfxxh pushed a commit to wanfangdata/tispark that referenced this pull request Jun 30, 2023
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[BUG] Distinct without alias throws NullPointerException
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