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Fix UtilityContainsQuery() to handle CREATE TABLE AS EXECUTE correctly.

The code seems to have been written to handle the pre-parse-analysisrepresentation, where an ExecuteStmt would appear directly underCreateTableAsStmt. But in reality the function is only run onalready-parse-analyzed statements, so there will be a Query node inbetween. We'd not noticed the bug because the function is generallynot used at all except in extended query protocol.Per report from Robert Haas and Rushabh Lathia.

1 parent4e32f8c commit5d1abe6Copy full SHA for 5d1abe6

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src/backend/tcop
- utility.c

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-9

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`‎src/backend/tcop/utility.c`

Lines changed: 4 additions & 9 deletions

Original file line number	Diff line number	Diff line change
`@@ -1508,16 +1508,11 @@ UtilityContainsQuery(Node *parsetree)`
`1508`	`1508`	`returnqry;`
`1509`	`1509`
`1510`	`1510`	`caseT_CreateTableAsStmt:`
`1511`		`-/* might or might not contain a Query ... */`
`1512`	`1511`	`qry= (Query) ((CreateTableAsStmt)parsetree)->query;`
`1513`		`-if (IsA(qry,Query))`
`1514`		`-{`
`1515`		`-/* Recursion currently can't be necessary here */`
`1516`		`-Assert(qry->commandType!=CMD_UTILITY);`
`1517`		`-returnqry;`
`1518`		`-}`
`1519`		`-Assert(IsA(qry,ExecuteStmt));`
`1520`		`-returnNULL;`
	`1512`	`+Assert(IsA(qry,Query));`
	`1513`	`+if (qry->commandType==CMD_UTILITY)`
	`1514`	`+returnUtilityContainsQuery(qry->utilityStmt);`
	`1515`	`+returnqry;`
`1521`	`1516`
`1522`	`1517`	`default:`
`1523`	`1518`	`returnNULL;`

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Commit5d1abe6

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`‎src/backend/tcop/utility.c`

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