1996-08-28 03:59:28 +02:00
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/*-------------------------------------------------------------------------
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*
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* pg_aggregate.h--
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* definition of the system "aggregate" relation (pg_aggregate)
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* along with the relation's initial contents.
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*
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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From: Thomas Lockhart <Thomas.G.Lockhart@jpl.nasa.gov>
Subject: [HACKERS] More date time functions
Here are some additional patches mostly related to the date and time
data types. It includes some type conversion routines to move between
the different date types and some other date manipulation routines such
as date_part(units,datetime).
I noticed Edmund Mergl et al's neat trick for getting function overloading
for builtin functions, so started to use that for the date and time stuff.
Later, if someone figures out how to get function overloading directly
for internal C code, then we can move to that technique.
These patches include documentation updates (don't faint!) for the built-in
man page. Doesn't yet include mention of timestamp, since I don't know
much about it and since it may change a bit to become a _real_ ANSI timestamp
which would include parser support for the declaration syntax (what do you
think, Dan?).
The patches were developed on the 970330 release, but have been rebuilt
off of the 970402 release. The first patch below is to get libpq to compile,
on my Linux box, but is not related to the rest of the patches and you can
choose not to apply that one at this time. Thanks in advance, scrappy!
1997-04-02 20:36:24 +02:00
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* $Id: pg_aggregate.h,v 1.4 1997/04/02 18:36:09 scrappy Exp $
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1996-08-28 03:59:28 +02:00
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*
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* NOTES
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* the genbki.sh script reads this file and generates .bki
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* information from the DATA() statements.
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PG_AGGREGATE_H
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#define PG_AGGREGATE_H
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/* ----------------
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* postgres.h contains the system type definintions and the
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* CATALOG(), BOOTSTRAP and DATA() sugar words so this file
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* can be read by both genbki.sh and the C compiler.
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* ----------------
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*/
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/* ----------------------------------------------------------------
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* pg_aggregate definition.
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*
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* cpp turns this into typedef struct FormData_pg_aggregate
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*
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* aggname name of the aggregate
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* aggtransfn1 transition function 1
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* aggtransfn2 transition function 2
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* aggfinalfn final function
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* aggbasetype type of data on which aggregate operates
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* aggtranstype1 output types for xition func 1
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* aggtranstype2 output types for xition func 2
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* aggfinaltype output type for final func
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* agginitval1 initial aggregate value
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* agginitval2 initial value for transition state 2
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* ----------------------------------------------------------------
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*/
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CATALOG(pg_aggregate) {
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NameData aggname;
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Oid aggowner;
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regproc aggtransfn1;
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regproc aggtransfn2;
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regproc aggfinalfn;
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Oid aggbasetype;
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Oid aggtranstype1;
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Oid aggtranstype2;
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Oid aggfinaltype;
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text agginitval1; /* VARIABLE LENGTH FIELD */
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text agginitval2; /* VARIABLE LENGTH FIELD */
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} FormData_pg_aggregate;
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/* ----------------
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* Form_pg_aggregate corresponds to a pointer to a tuple with
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* the format of pg_aggregate relation.
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* ----------------
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*/
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typedef FormData_pg_aggregate *Form_pg_aggregate;
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/* ----------------
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* compiler constants for pg_aggregate
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* ----------------
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*/
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#define Natts_pg_aggregate 11
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#define Anum_pg_aggregate_aggname 1
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#define Anum_pg_aggregate_aggowner 2
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#define Anum_pg_aggregate_aggtransfn1 3
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#define Anum_pg_aggregate_aggtransfn2 4
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#define Anum_pg_aggregate_aggfinalfn 5
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#define Anum_pg_aggregate_aggbasetype 6
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#define Anum_pg_aggregate_aggtranstype1 7
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#define Anum_pg_aggregate_aggtranstype2 8
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#define Anum_pg_aggregate_aggfinaltype 9
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#define Anum_pg_aggregate_agginitval1 10
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#define Anum_pg_aggregate_agginitval2 11
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/* ----------------
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* initial contents of pg_aggregate
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* ---------------
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*/
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From: Thomas Lockhart <Thomas.G.Lockhart@jpl.nasa.gov>
Subject: [HACKERS] More date time functions
Here are some additional patches mostly related to the date and time
data types. It includes some type conversion routines to move between
the different date types and some other date manipulation routines such
as date_part(units,datetime).
I noticed Edmund Mergl et al's neat trick for getting function overloading
for builtin functions, so started to use that for the date and time stuff.
Later, if someone figures out how to get function overloading directly
for internal C code, then we can move to that technique.
These patches include documentation updates (don't faint!) for the built-in
man page. Doesn't yet include mention of timestamp, since I don't know
much about it and since it may change a bit to become a _real_ ANSI timestamp
which would include parser support for the declaration syntax (what do you
think, Dan?).
The patches were developed on the 970330 release, but have been rebuilt
off of the 970402 release. The first patch below is to get libpq to compile,
on my Linux box, but is not related to the rest of the patches and you can
choose not to apply that one at this time. Thanks in advance, scrappy!
1997-04-02 20:36:24 +02:00
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DATA(insert OID = 0 ( avg PGUID int4pl int4inc int4div 23 23 23 23 0 0 ));
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DATA(insert OID = 0 ( avg PGUID int2pl int2inc int2div 21 21 21 21 0 0 ));
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DATA(insert OID = 0 ( avg PGUID float4pl float4inc float4div 700 700 700 700 0.0 0.0 ));
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DATA(insert OID = 0 ( avg PGUID float8pl float8inc float8div 701 701 701 701 0.0 0.0 ));
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DATA(insert OID = 0 ( sum PGUID int4pl - - 23 23 0 23 0 _null_ ));
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DATA(insert OID = 0 ( sum PGUID int2pl - - 21 21 0 21 0 _null_ ));
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DATA(insert OID = 0 ( sum PGUID float4pl - - 700 700 0 700 0.0 _null_ ));
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DATA(insert OID = 0 ( sum PGUID float8pl - - 701 701 0 701 0.0 _null_ ));
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DATA(insert OID = 0 ( max PGUID int4larger - - 23 23 0 23 _null_ _null_ ));
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DATA(insert OID = 0 ( max PGUID int2larger - - 21 21 0 21 _null_ _null_ ));
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DATA(insert OID = 0 ( max PGUID float4larger - - 700 700 0 700 _null_ _null_ ));
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DATA(insert OID = 0 ( max PGUID float8larger - - 701 701 0 701 _null_ _null_ ));
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DATA(insert OID = 0 ( max PGUID int4larger - - 702 702 0 702 _null_ _null_ ));
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DATA(insert OID = 0 ( max PGUID date_larger - - 1082 1082 0 1082 _null_ _null_ ));
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DATA(insert OID = 0 ( max PGUID float8larger - - 1084 1084 0 1084 _null_ _null_ ));
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DATA(insert OID = 0 ( min PGUID int4smaller - - 23 23 0 23 _null_ _null_ ));
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DATA(insert OID = 0 ( min PGUID int2smaller - - 21 21 0 21 _null_ _null_ ));
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DATA(insert OID = 0 ( min PGUID float4smaller - - 700 700 0 700 _null_ _null_ ));
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DATA(insert OID = 0 ( min PGUID float8smaller - - 701 701 0 701 _null_ _null_ ));
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DATA(insert OID = 0 ( min PGUID int4smaller - - 702 702 0 702 _null_ _null_ ));
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DATA(insert OID = 0 ( min PGUID date_smaller - - 1082 1082 0 1082 _null_ _null_ ));
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DATA(insert OID = 0 ( min PGUID float8smaller - - 1084 1084 0 1084 _null_ _null_ ));
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DATA(insert OID = 0 ( count PGUID - int4inc - 0 0 23 23 _null_ 0 ));
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1996-08-28 03:59:28 +02:00
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/*
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* prototypes for fucnctions in pg_aggregate.c
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*/
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extern void AggregateCreate(char *aggName,
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char *aggtransfn1Name,
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char *aggtransfn2Name,
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char *aggfinalfnName,
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char *aggbasetypeName,
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char *aggtransfn1typeName,
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char *aggtransfn2typeName,
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char *agginitval1,
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char *agginitval2);
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extern char *AggNameGetInitVal(char *aggName, Oid basetype,
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int xfuncno, bool *isNull);
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#endif /* PG_AGGREGATE_H */
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