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Fix a double-free that could occur when a component of a compound SELECT with an ORDER BY clause uses named window definitions.

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FossilOrigin-Name: 92893b7980cbb0c6e26bc0b21390a717193205c9897fea5f26476462928897f9
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dan
2019-12-04 01:42:07 +00:00
parent 0232dade79
commit fcc057db25
4 changed files with 38 additions and 8 deletions
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3
src/select.c
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@@ -4569,6 +4569,9 @@ static int convertCompoundSelectToSubquery(Walker *pWalker, Select *p){
p->pPrior = 0;
p->pNext = 0;
p->pWith = 0;
#ifndef SQLITE_OMIT_WINDOWFUNC
p->pWinDefn = 0;
#endif
p->selFlags &= ~SF_Compound;
assert( (p->selFlags & SF_Converted)==0 );
p->selFlags |= SF_Converted;