When the sqlite3WindowRewrite() routine detects and error, have it convert

the SELECT statement into just "SELECT null" so that it does not leave the
parse tree in a goofy state that can cause problems with subsequent code
before the stack has a chance to unwind and report the error.
Ticket [d87336c81c7d0873]

FossilOrigin-Name: fa58aad48a788802b13a819e49f9b8787f713bbe395c46c7295e821c52c81738

1 files changed, 2 insertions, 1 deletions

diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index a8cdb9f6a..c1ed684ff 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -2918,13 +2918,13 @@ struct Upsert {
 ** sequences for the ORDER BY clause.
 */
 struct Select {
-  ExprList *pEList;      /* The fields of the result */
   u8 op;                 /* One of: TK_UNION TK_ALL TK_INTERSECT TK_EXCEPT */
   LogEst nSelectRow;     /* Estimated number of result rows */
   u32 selFlags;          /* Various SF_* values */
   int iLimit, iOffset;   /* Memory registers holding LIMIT & OFFSET counters */
   u32 selId;             /* Unique identifier number for this SELECT */
   int addrOpenEphm[2];   /* OP_OpenEphem opcodes related to this select */
+  ExprList *pEList;      /* The fields of the result */
   SrcList *pSrc;         /* The FROM clause */
   Expr *pWhere;          /* The WHERE clause */
   ExprList *pGroupBy;    /* The GROUP BY clause */
@@ -4092,6 +4092,7 @@ int sqlite3Select(Parse*, Select*, SelectDest*);
 Select *sqlite3SelectNew(Parse*,ExprList*,SrcList*,Expr*,ExprList*,
                          Expr*,ExprList*,u32,Expr*);
 void sqlite3SelectDelete(sqlite3*, Select*);
+void sqlite3SelectReset(Parse*, Select*);
 Table *sqlite3SrcListLookup(Parse*, SrcList*);
 int sqlite3IsReadOnly(Parse*, Table*, int);
 void sqlite3OpenTable(Parse*, int iCur, int iDb, Table*, int);