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/*-------------------------------------------------------------------------
*
* pg_aggregate.h--
* definition of the system "aggregate" relation (pg_aggregate)
* along with the relation's initial contents.
*
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: pg_aggregate.h,v 1.1.1.1 1996/07/09 06:21:16 scrappy Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
* information from the DATA() statements.
*
*-------------------------------------------------------------------------
*/
#ifndef PG_AGGREGATE_H
#define PG_AGGREGATE_H
/* ----------------
* postgres.h contains the system type definintions and the
* CATALOG(), BOOTSTRAP and DATA() sugar words so this file
* can be read by both genbki.sh and the C compiler.
* ----------------
*/
#include "postgres.h"
/* ----------------------------------------------------------------
* pg_aggregate definition.
*
* cpp turns this into typedef struct FormData_pg_aggregate
*
* aggname name of the aggregate
* aggtransfn1 transition function 1
* aggtransfn2 transition function 2
* aggfinalfn final function
* aggbasetype type of data on which aggregate operates
* aggtranstype1 output types for xition func 1
* aggtranstype2 output types for xition func 2
* aggfinaltype output type for final func
* agginitval1 initial aggregate value
* agginitval2 initial value for transition state 2
* ----------------------------------------------------------------
*/
CATALOG(pg_aggregate) {
NameData aggname;
Oid aggowner;
regproc aggtransfn1;
regproc aggtransfn2;
regproc aggfinalfn;
Oid aggbasetype;
Oid aggtranstype1;
Oid aggtranstype2;
Oid aggfinaltype;
text agginitval1; /* VARIABLE LENGTH FIELD */
text agginitval2; /* VARIABLE LENGTH FIELD */
} FormData_pg_aggregate;
/* ----------------
* Form_pg_aggregate corresponds to a pointer to a tuple with
* the format of pg_aggregate relation.
* ----------------
*/
typedef FormData_pg_aggregate *Form_pg_aggregate;
/* ----------------
* compiler constants for pg_aggregate
* ----------------
*/
#define Natts_pg_aggregate 11
#define Anum_pg_aggregate_aggname 1
#define Anum_pg_aggregate_aggowner 2
#define Anum_pg_aggregate_aggtransfn1 3
#define Anum_pg_aggregate_aggtransfn2 4
#define Anum_pg_aggregate_aggfinalfn 5
#define Anum_pg_aggregate_aggbasetype 6
#define Anum_pg_aggregate_aggtranstype1 7
#define Anum_pg_aggregate_aggtranstype2 8
#define Anum_pg_aggregate_aggfinaltype 9
#define Anum_pg_aggregate_agginitval1 10
#define Anum_pg_aggregate_agginitval2 11
/* ----------------
* initial contents of pg_aggregate
* ---------------
*/
DATA(insert OID = 0 ( avg PGUID int4pl int4inc int4div 23 23 23 23 0 0 ));
DATA(insert OID = 0 ( avg PGUID int2pl int2inc int2div 21 21 21 21 0 0 ));
DATA(insert OID = 0 ( avg PGUID float4pl float4inc float4div 700 700 700 700 0.0 0.0 ));
DATA(insert OID = 0 ( avg PGUID float8pl float8inc float8div 701 701 701 701 0.0 0.0 ));
DATA(insert OID = 0 ( sum PGUID int4pl - - 23 23 0 23 0 _null_ ));
DATA(insert OID = 0 ( sum PGUID int2pl - - 21 21 0 21 0 _null_ ));
DATA(insert OID = 0 ( sum PGUID float4pl - - 700 700 0 700 0.0 _null_ ));
DATA(insert OID = 0 ( sum PGUID float8pl - - 701 701 0 701 0.0 _null_ ));
DATA(insert OID = 0 ( max PGUID int4larger - - 23 23 0 23 _null_ _null_ ));
DATA(insert OID = 0 ( max PGUID int2larger - - 21 21 0 21 _null_ _null_ ));
DATA(insert OID = 0 ( max PGUID float4larger - - 700 700 0 700 _null_ _null_ ));
DATA(insert OID = 0 ( max PGUID float8larger - - 701 701 0 701 _null_ _null_ ));
DATA(insert OID = 0 ( min PGUID int4smaller - - 23 23 0 23 _null_ _null_ ));
DATA(insert OID = 0 ( min PGUID int2smaller - - 21 21 0 21 _null_ _null_ ));
DATA(insert OID = 0 ( min PGUID float4smaller - - 700 700 0 700 _null_ _null_ ));
DATA(insert OID = 0 ( min PGUID float8smaller - - 701 701 0 701 _null_ _null_ ));
DATA(insert OID = 0 ( count PGUID - int4inc - 0 0 23 23 _null_ 0 ));
/*
* prototypes for fucnctions in pg_aggregate.c
*/
extern void AggregateCreate(char *aggName,
char *aggtransfn1Name,
char *aggtransfn2Name,
char *aggfinalfnName,
char *aggbasetypeName,
char *aggtransfn1typeName,
char *aggtransfn2typeName,
char *agginitval1,
char *agginitval2);
extern char *AggNameGetInitVal(char *aggName, Oid basetype,
int xfuncno, bool *isNull);
#endif /* PG_AGGREGATE_H */
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