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Fix a stack overflow that could occur when renaming a table that has a trigger containing a window function invocation that itself contains a specific syntax error.

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FossilOrigin-Name: c621fc668c6538f9f5bdac204f012c64998679a61aa8e224d212503820224c09
This commit is contained in:
dan
2019-04-29 11:27:58 +00:00
parent 73c0d272a9
commit 490e6f2506
4 changed files with 44 additions and 10 deletions
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4
src/resolve.c
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@@ -866,7 +866,9 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){
#ifndef SQLITE_OMIT_WINDOWFUNC
if( pExpr->y.pWin ){
Select *pSel = pNC->pWinSelect;
sqlite3WindowUpdate(pParse, pSel->pWinDefn, pExpr->y.pWin, pDef);
if( IN_RENAME_OBJECT==0 ){
sqlite3WindowUpdate(pParse, pSel->pWinDefn, pExpr->y.pWin, pDef);
}
sqlite3WalkExprList(pWalker, pExpr->y.pWin->pPartition);
sqlite3WalkExprList(pWalker, pExpr->y.pWin->pOrderBy);
sqlite3WalkExpr(pWalker, pExpr->y.pWin->pFilter);