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Begin adding support for more esoteric window frames.

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FossilOrigin-Name: bc4b81d60d40583de0f929730159011c1a7696802532ebd02220de3ace94a60d
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dan
2018-05-21 19:45:11 +00:00
parent b6e9f7a4d1
commit f9eae18b56
7 changed files with 314 additions and 143 deletions
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5
src/sqliteInt.h
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@@ -3485,6 +3485,7 @@ struct Window {
FuncDef *pFunc;
int nArg;
int regPart;
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 */
@@ -3494,6 +3495,8 @@ void sqlite3WindowDelete(sqlite3*, Window*);
Window *sqlite3WindowAlloc(Parse*, int, int, Expr*, int , Expr*);
void sqlite3WindowAttach(Parse*, Expr*, Window*);
int sqlite3WindowCompare(Parse*, Window*, Window*);
void sqlite3WindowCodeInit(Parse*, Window*);
void sqlite3WindowCodeStep(Parse*, Select*, WhereInfo*, int, int);
/*
** Assuming zIn points to the first byte of a UTF-8 character,
@@ -4202,6 +4205,8 @@ KeyInfo *sqlite3KeyInfoAlloc(sqlite3*,int,int);
void sqlite3KeyInfoUnref(KeyInfo*);
KeyInfo *sqlite3KeyInfoRef(KeyInfo*);
KeyInfo *sqlite3KeyInfoOfIndex(Parse*, Index*);
KeyInfo *sqlite3KeyInfoFromExprList(Parse*, ExprList*, int, int);
#ifdef SQLITE_DEBUG
int sqlite3KeyInfoIsWriteable(KeyInfo*);
#endif