Earlier detection of OOM errors during window function processing.

dbsqlfuzz b08676f5a0437552c95d2a5d7ef285f8c451ea35.

FossilOrigin-Name: 8e04f52e32c9655b703ab0a6dc6d57e6bd134db9e7168807b7b2ce81974f9274

manifest

@@ -1,5 +1,5 @@
-C Handle\s"RETURNING\srowid"\sclauses\sattached\sto\sINSERTs\son\sviews\swithout\scausing\san\sassert()\sto\sfail.\sFixes\sdbsqlfuzz\scrash\s0081f863d7b2002045ac2361879fc80dfebb98f1.
-D 2021-04-06T13:53:10.506
+C Earlier\sdetection\sof\sOOM\serrors\sduring\swindow\sfunction\sprocessing.\ndbsqlfuzz\sb08676f5a0437552c95d2a5d7ef285f8c451ea35.
+D 2021-04-06T13:56:46.570
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 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -633,7 +633,7 @@ F src/where.c 9accf968b0e75804b0e99a7500f5310e5213bc3f5a2bd6810e51da354d2cc3b5
 F src/whereInt.h 446e5e8018f83358ef917cf32d8e6a86dc8430113d0b17e720f1839d3faa44c4
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-F src/window.c 1bc737c35faf229d83d997562dfdd4d75e3cef0101b13935d227d39d581cb190
+F src/window.c 3c7135f2df541e6f58846daab57457dac45c3b2bb19c92b153d2e2974ae83a60
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@@ -1912,7 +1912,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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manifest.uuid

@@ -1 +1 @@
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src/window.c

@@ -788,6 +788,7 @@ static int selectWindowRewriteExprCb(Walker *pWalker, Expr *pExpr){
     case TK_AGG_FUNCTION:
     case TK_COLUMN: {
       int iCol = -1;
+      if( pParse->db->mallocFailed ) return WRC_Abort;
       if( p->pSub ){
         int i;
         for(i=0; i<p->pSub->nExpr; i++){