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executor: fix pipelined window invalid memory address (#30418) #30458

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merged 4 commits into from
Sep 19, 2022
Merged

executor: fix pipelined window invalid memory address (#30418) #30458

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4d73d66
cherry pick #30418 to release-5.1
wshwsh12 Dec 7, 2021
1c07309
resolve conflict
wshwsh12 Dec 8, 2021
c1a24bf
Merge remote-tracking branch 'upstream/release-5.1' into release-5.1-…
wshwsh12 Jun 28, 2022
1fba686
Merge branch 'release-5.1' into release-5.1-cb88a4c51fe9
ti-chi-bot Sep 19, 2022
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2 changes: 1 addition & 1 deletion executor/pipelined_window.go
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Original file line number Diff line number Diff line change
Expand Up @@ -178,7 +178,7 @@ func (e *PipelinedWindowExec) getRowsInPartition(ctx context.Context) (err error
var drained, samePartition bool
drained, err = e.fetchChild(ctx)
if err != nil {
err = errors.Trace(err)
return errors.Trace(err)
}
// we return immediately to use a combination of true newPartition but 0 in e.rowToConsume to indicate the data source is drained,
if drained {
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12 changes: 12 additions & 0 deletions expression/integration_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -9947,6 +9947,18 @@ func (s *testIntegrationSuite) TestConstPropNullFunctions(c *C) {
tk.MustQuery("select * from t2 where t2.i2=((select count(1) from t1 where t1.i1=t2.i2))").Check(testkit.Rows("1 <nil> 0.1"))
}

func (s *testIntegrationSuite) TestIssue30326(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("use test")
tk.MustExec("drop table if exists t;")
tk.MustExec("create table t(a int);")
tk.MustExec("insert into t values(1),(1),(2),(2);")
tk.MustExec("set tidb_window_concurrency = 1;")
err := tk.QueryToErr("select (FIRST_VALUE(1) over (partition by v.a)) as c3 from (select a from t where t.a = (select a from t t2 where t.a = t2.a)) as v;")
c.Assert(err, NotNil)
c.Assert(err.Error(), Equals, "[executor:1242]Subquery returns more than 1 row")
}

func (s *testIntegrationSuite) TestIssue28643(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("use test")
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