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Add support for "ROWS BETWEEN <expr> PRECEDING AND <expr> FOLLOWING" window

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FossilOrigin-Name: 3a203660f1e4da3b8d2d605c494f4843f6e00752f28042b49e11d7d6550dd406
This commit is contained in:
dan
2018-05-23 20:55:37 +00:00
parent 72779425b5
commit c3a20c19a8
11 changed files with 452 additions and 137 deletions
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6
src/sqliteInt.h
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@@ -1723,9 +1723,9 @@ struct FuncDestructor {
{nArg, SQLITE_UTF8|(nc*SQLITE_FUNC_NEEDCOLL)|extraFlags, \
SQLITE_INT_TO_PTR(arg), 0, xStep,xFinal,xFinal,0,#zName, {0}}
#define WAGGREGATE(zName, nArg, arg, nc, xStep, xFinal) \
#define WAGGREGATE(zName, nArg, arg, nc, xStep, xInverse, xFinal) \
{nArg, SQLITE_UTF8|(nc*SQLITE_FUNC_NEEDCOLL), \
SQLITE_INT_TO_PTR(arg), 0, xStep,xFinal,xFinal,0,#zName, {0}}
SQLITE_INT_TO_PTR(arg), 0, xStep,xFinal,xFinal,xInverse,#zName, {0}}
/*
** All current savepoints are stored in a linked list starting at
@@ -3496,7 +3496,7 @@ 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);
void sqlite3WindowCodeStep(Parse*, Select*, WhereInfo*, int, int, int*);
/*
** Assuming zIn points to the first byte of a UTF-8 character,