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planner: should clone column in injectProjBelowSort (#10452) #10720

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merged 2 commits into from
Jun 5, 2019
Merged

planner: should clone column in injectProjBelowSort (#10452) #10720

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64ba457
planner: should clone column in injectProjBelowSort (#10452)
winoros May 27, 2019
25e4b2d
Merge branch 'release-3.0' into pick2
alivxxx Jun 5, 2019
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13 changes: 13 additions & 0 deletions executor/executor_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3840,6 +3840,19 @@ func (s *testSuite) TestIssue10448(c *C) {
tk.MustQuery("desc select * from t where pk = 9223372036854775808").Check(testkit.Rows("Point_Get_1 1.00 root table:t, handle:9223372036854775808"))
}

func (s *testSuite) TestIssue10435(c *C) {
tk := testkit.NewTestKit(c, s.store)
tk.MustExec("use test")
tk.MustExec("create table t1(i int, j int, k int)")
tk.MustExec("insert into t1 VALUES (1,1,1),(2,2,2),(3,3,3),(4,4,4)")
tk.MustExec("INSERT INTO t1 SELECT 10*i,j,5*j FROM t1 UNION SELECT 20*i,j,5*j FROM t1 UNION SELECT 30*i,j,5*j FROM t1")

tk.MustExec("set @@session.tidb_enable_window_function=1")
tk.MustQuery("SELECT SUM(i) OVER W FROM t1 WINDOW w AS (PARTITION BY j ORDER BY i) ORDER BY 1+SUM(i) OVER w").Check(
testkit.Rows("1", "2", "3", "4", "11", "22", "31", "33", "44", "61", "62", "93", "122", "124", "183", "244"),
)
}

func (s *testSuite) TestUnsignedFeedback(c *C) {
tk := testkit.NewTestKit(c, s.store)
oriProbability := statistics.FeedbackProbability.Load()
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9 changes: 5 additions & 4 deletions planner/core/rule_inject_extra_projection.go
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Original file line number Diff line number Diff line change
Expand Up @@ -157,7 +157,7 @@ func injectProjBelowSort(p PhysicalPlan, orderByItems []*ByItems) PhysicalPlan {

topProjExprs := make([]expression.Expression, 0, p.Schema().Len())
for i := range p.Schema().Columns {
col := p.Schema().Columns[i]
col := p.Schema().Columns[i].Clone().(*expression.Column)
col.Index = i
topProjExprs = append(topProjExprs, col)
}
Expand All @@ -172,9 +172,10 @@ func injectProjBelowSort(p PhysicalPlan, orderByItems []*ByItems) PhysicalPlan {
bottomProjSchemaCols := make([]*expression.Column, 0, len(childPlan.Schema().Columns)+numOrderByItems)
bottomProjExprs := make([]expression.Expression, 0, len(childPlan.Schema().Columns)+numOrderByItems)
for i, col := range childPlan.Schema().Columns {
col.Index = i
bottomProjSchemaCols = append(bottomProjSchemaCols, col)
bottomProjExprs = append(bottomProjExprs, col)
newCol := col.Clone().(*expression.Column)
newCol.Index = i
bottomProjSchemaCols = append(bottomProjSchemaCols, newCol)
bottomProjExprs = append(bottomProjExprs, newCol)
}

for _, item := range orderByItems {
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