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executor: support GROUP_CONCAT(ORDER BY) (#16591) #16988

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merged 11 commits into from
May 8, 2020
Merged

executor: support GROUP_CONCAT(ORDER BY) (#16591) #16988

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56e5dd9
cherry pick #16591 to release-3.0
SunRunAway May 6, 2020
a2db2b1
fix conflict
SunRunAway May 6, 2020
eab7282
fix conflict
SunRunAway May 7, 2020
1cbd1ee
fix conflict
SunRunAway May 7, 2020
a78dfe1
save
SunRunAway May 7, 2020
9caa851
fix test
SunRunAway May 7, 2020
8a73ea1
fix test
SunRunAway May 7, 2020
05a3a57
fix test
SunRunAway May 7, 2020
bef0c2c
fix test
SunRunAway May 7, 2020
7247df1
fix vet
SunRunAway May 7, 2020
71591f5
Merge branch 'release-3.0' into release-3.0-7ebcc203986b
sre-bot May 8, 2020
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4 changes: 2 additions & 2 deletions cmd/explaintest/r/explain.result
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Original file line number Diff line number Diff line change
Expand Up @@ -26,13 +26,13 @@ drop table if exists t;
create table t(id int primary key, a int, b int);
explain select group_concat(a) from t group by id;
id count task operator info
StreamAgg_8 8000.00 root group by:col_1, funcs:group_concat(col_0, ",")
StreamAgg_8 8000.00 root group by:col_1, funcs:group_concat(col_0 separator ",")
└─Projection_18 10000.00 root cast(test.t.a), test.t.id
└─TableReader_15 10000.00 root data:TableScan_14
└─TableScan_14 10000.00 cop table:t, range:[-inf,+inf], keep order:true, stats:pseudo
explain select group_concat(a, b) from t group by id;
id count task operator info
StreamAgg_8 8000.00 root group by:col_2, funcs:group_concat(col_0, col_1, ",")
StreamAgg_8 8000.00 root group by:col_2, funcs:group_concat(col_0, col_1 separator ",")
└─Projection_18 10000.00 root cast(test.t.a), cast(test.t.b), test.t.id
└─TableReader_15 10000.00 root data:TableScan_14
└─TableScan_14 10000.00 cop table:t, range:[-inf,+inf], keep order:true, stats:pseudo
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