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Ensure that when code for a scalar SELECT featuring window functions is generated more than once by the planner, separate ephemeral tables are opened for each instance.

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FossilOrigin-Name: ce1417325273aba866767349b55d9bbfb61a08e716bebda2122918a9657ee38c
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dan
2020-01-01 20:17:15 +00:00
parent aef8167421
commit 4ea562ee70
6 changed files with 44 additions and 18 deletions
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src/sqliteInt.h
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@@ -3727,7 +3727,7 @@ Window *sqlite3WindowAlloc(Parse*, int, int, Expr*, int , Expr*, u8);
void sqlite3WindowAttach(Parse*, Expr*, Window*);
void sqlite3WindowLink(Select *pSel, Window *pWin);
int sqlite3WindowCompare(Parse*, Window*, Window*, int);
void sqlite3WindowCodeInit(Parse*, Window*);
void sqlite3WindowCodeInit(Parse*, Select*);
void sqlite3WindowCodeStep(Parse*, Select*, WhereInfo*, int, int);
int sqlite3WindowRewrite(Parse*, Select*);
int sqlite3ExpandSubquery(Parse*, struct SrcList_item*);