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Disallow the use of window functions in the recursive part of a recursive CTE.

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FossilOrigin-Name: 7fc2994434c7d9ed29c96a69c07e8eb4e97be776473c170c63f9a1bbaa09fa68
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dan
2018-09-27 12:14:15 +00:00
parent 1c06b47864
commit 6afa35c985
4 changed files with 37 additions and 9 deletions
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7
src/select.c
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@@ -2318,6 +2318,13 @@ static void generateWithRecursiveQuery(
Expr *pLimit; /* Saved LIMIT and OFFSET */
int regLimit, regOffset; /* Registers used by LIMIT and OFFSET */
#ifndef SQLITE_OMIT_WINDOWFUNC
if( p->pWin ){
sqlite3ErrorMsg(pParse, "cannot use window functions in recursive queries");
return;
}
#endif
/* Obtain authorization to do a recursive query */
if( sqlite3AuthCheck(pParse, SQLITE_RECURSIVE, 0, 0, 0) ) return;