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Avoid allocating excessive registers for the PARTITION BY expressions when processing window functions.

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FossilOrigin-Name: 180be266238e18c01f8bd52c75dd9aa3e26e553620258141cd95189a0ae59ddb
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dan
2019-03-13 17:20:27 +00:00
parent b560a7194d
commit b6f2deac3c
4 changed files with 18 additions and 20 deletions
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src/sqliteInt.h
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@@ -3571,8 +3571,7 @@ struct Window {
int regResult;
int csrApp; /* Function cursor (used by min/max) */
int regApp; /* Function register (also used by min/max) */
int regPart; /* First in a set of registers holding PARTITION BY
** and ORDER BY values for the window */
int regPart; /* Array of registers for PARTITION BY values */
Expr *pOwner; /* Expression object this window is attached to */
int nBufferCol; /* Number of columns in buffer table */
int iArgCol; /* Offset of first argument for this function */