contrib/sqlite3/sqlite3.c

6183 ** "sqlite3_create_function*" functions, xFunc, xStep and xFinal, are
6186 ** callback only; NULL pointers must be passed as the xStep and xFinal
6187 ** parameters. ^An aggregate SQL function requires an implementation of xStep
6192 ** ^The sixth, seventh, eighth and ninth parameters (xStep, xFinal, xValue
6194 ** C-language callbacks that implement the new function. xStep and xFinal
6238   void (*xStep)(sqlite3_context*,int,sqlite3_value**),
6248   void (*xStep)(sqlite3_context*,int,sqlite3_value**),
6258   void (*xStep)(sqlite3_context*,int,sqlite3_value**),
6268   void (*xStep)(sqlite3_context*,int,sqlite3_value**),
6564 ** called once for each invocation of the xStep callback and then one
6566 ** an aggregate query, the xStep() callback of the aggregate function
6588 ** to the xStep or xFinal callback routine that implements the aggregate
17377 **   AGGREGATE(zName, nArg, iArg, bNC, xStep, xFinal)
17379 **     the C functions xStep and xFinal. The first four parameters
17383 **   WFUNCTION(zName, nArg, iArg, xStep, xFinal, xValue, xInverse)
17385 **     the C functions xStep and xFinal. The first four parameters
17431 #define WAGGREGATE(zName, nArg, arg, nc, xStep, xFinal, xValue, xInverse, f) \
17433    SQLITE_INT_TO_PTR(arg), 0, xStep,xFinal,xValue,xInverse,#zName, {0}}
92913 ** Execute the xStep function for an aggregate.
92935 ** Execute the xStep (if P1==0) or xInverse (if P1!=0) function for an
92992     /* This is an OP_AggInverse call.  Verify that xStep has always
125474                           void (*xStep)(sqlite3_context*,int,sqlite3_value**),
125478                             void (*xStep)(sqlite3_context*,int,sqlite3_value**),
125608                             void (*xStep)(sqlite3_context*,int,sqlite3_value**),
125705                             void (*xStep)(sqlite3_context*,int,sqlite3_value**),
154498 ** No-op implementations of xStep() and xFinalize().  Used as place-holders
154518 /* Window functions that use all window interfaces: xStep, xFinal,
154534 /* Window functions that use all window interfaces: xStep, the
154878 ** rewrites the SELECT statement so that window function xStep functions
155468 **        An input row can be discarded after the window functions xStep()
155482 **   points to the next row to call the xStep() method of each window function
155533 ** Generate VM code to invoke either xStep() (if bInverse is 0) or
155555   int bInverse,                   /* True to invoke xInverse instead of xStep */
156381 **   AGGSTEP:    invoke the aggregate xStep() function for each window function
165862   void (*xStep)(sqlite3_context*,int,sqlite3_value **),
165876    || ((xFinal==0)!=(xStep==0))       /* Both or neither of xFinal and xStep */
165910          pUserData, xSFunc, xStep, xFinal, xValue, xInverse, pDestructor);
165914            pUserData, xSFunc, xStep, xFinal, xValue, xInverse, pDestructor);
165959   p->xSFunc = xSFunc ? xSFunc : xStep;
165982   void (*xStep)(sqlite3_context*,int,sqlite3_value**),
166009       xSFunc, xStep, xFinal, xValue, xInverse, pArg
166033   void (*xStep)(sqlite3_context*,int,sqlite3_value **),
166036   return createFunctionApi(db, zFunc, nArg, enc, p, xSFunc, xStep,
166046   void (*xStep)(sqlite3_context*,int,sqlite3_value **),
166050   return createFunctionApi(db, zFunc, nArg, enc, p, xSFunc, xStep,
166059   void (*xStep)(sqlite3_context*,int,sqlite3_value **),
166065   return createFunctionApi(db, zFunc, nArg, enc, p, 0, xStep,
166077   void (*xStep)(sqlite3_context*,int,sqlite3_value**),
166089   rc = sqlite3CreateFunc(db, zFunc8, nArg, eTextRep, p, xSFunc,xStep,xFinal,0,0,0);
191135      void (*xStep)(sqlite3_context*,int,sqlite3_value**);
191166                                  aAgg[i].xStep, aAgg[i].xFinal,
197349     void (*xStep)(sqlite3_context*,int,sqlite3_value**);
197370               0, aAgg[i].xStep, aAgg[i].xFinal);