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7c13781ee7
postgresql/src/include/catalog/pg_cast.h
Tom Lane 7c13781ee7 First phase of project to use fixed OIDs for all system catalogs and 
indexes.  Extend the macros in include/catalog/*.h to carry the info
about hand-assigned OIDs, and adjust the genbki script and bootstrap
code to make the relations actually get those OIDs.  Remove the small
number of RelOid_pg_foo macros that we had in favor of a complete
set named like the catname.h and indexing.h macros.  Next phase will
get rid of internal use of names for looking up catalogs and indexes;
but this completes the changes forcing an initdb, so it looks like a
good place to commit.
Along the way, I made the shared relations (pg_database etc) not be
'bootstrap' relations any more, so as to reduce the number of hardwired
entries and simplify changing those relations in future.  I'm not
sure whether they ever really needed to be handled as bootstrap
relations, but it seems to work fine to not do so now.
2005-04-14 01:38:22 +00:00

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/*-------------------------------------------------------------------------
*
* pg_cast.h
* definition of the system "type casts" relation (pg_cast)
* along with the relation's initial contents.
*
* As of Postgres 8.0, pg_cast describes not only type coercion functions
* but also length coercion functions.
*
*
* Copyright (c) 2002-2005, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/include/catalog/pg_cast.h,v 1.21 2005/04/14 01:38:20 tgl Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
* information from the DATA() statements.
*
*-------------------------------------------------------------------------
*/
#ifndef PG_CAST_H
#define PG_CAST_H
#define CastRelationId 2605
CATALOG(pg_cast,2605)
{
Oid castsource; /* source datatype for cast */
Oid casttarget; /* destination datatype for cast */
Oid castfunc; /* cast function; 0 = binary coercible */
char castcontext; /* contexts in which cast can be used */
} FormData_pg_cast;
typedef FormData_pg_cast *Form_pg_cast;
/*
* The allowable values for pg_cast.castcontext are specified by this enum.
* Since castcontext is stored as a "char", we use ASCII codes for human
* convenience in reading the table. Note that internally to the backend,
* these values are converted to the CoercionContext enum (see primnodes.h),
* which is defined to sort in a convenient order; the ASCII codes don't
* have to sort in any special order.
*/
typedef enum CoercionCodes
{
COERCION_CODE_IMPLICIT = 'i', /* coercion in context of
* expression */
COERCION_CODE_ASSIGNMENT = 'a', /* coercion in context of
* assignment */
COERCION_CODE_EXPLICIT = 'e' /* explicit cast operation */
} CoercionCodes;
/* ----------------
* compiler constants for pg_cast
* ----------------
*/
#define Natts_pg_cast 4
#define Anum_pg_cast_castsource 1
#define Anum_pg_cast_casttarget 2
#define Anum_pg_cast_castfunc 3
#define Anum_pg_cast_castcontext 4
/* ----------------
* initial contents of pg_cast
*
* Note: this table has OIDs, but we don't bother to assign them manually,
* since nothing needs to know the specific OID of any built-in cast.
* ----------------
*/
/*
* Numeric category: implicit casts are allowed in the direction
* int2->int4->int8->numeric->float4->float8, while casts in the
* reverse direction are assignment-only.
*/
DATA(insert ( 20 21 714 a ));
DATA(insert ( 20 23 480 a ));
DATA(insert ( 20 700 652 i ));
DATA(insert ( 20 701 482 i ));
DATA(insert ( 20 1700 1781 i ));
DATA(insert ( 21 20 754 i ));
DATA(insert ( 21 23 313 i ));
DATA(insert ( 21 700 236 i ));
DATA(insert ( 21 701 235 i ));
DATA(insert ( 21 1700 1782 i ));
DATA(insert ( 23 20 481 i ));
DATA(insert ( 23 21 314 a ));
DATA(insert ( 23 700 318 i ));
DATA(insert ( 23 701 316 i ));
DATA(insert ( 23 1700 1740 i ));
DATA(insert ( 700 20 653 a ));
DATA(insert ( 700 21 238 a ));
DATA(insert ( 700 23 319 a ));
DATA(insert ( 700 701 311 i ));
DATA(insert ( 700 1700 1742 a ));
DATA(insert ( 701 20 483 a ));
DATA(insert ( 701 21 237 a ));
DATA(insert ( 701 23 317 a ));
DATA(insert ( 701 700 312 a ));
DATA(insert ( 701 1700 1743 a ));
DATA(insert ( 1700 20 1779 a ));
DATA(insert ( 1700 21 1783 a ));
DATA(insert ( 1700 23 1744 a ));
DATA(insert ( 1700 700 1745 i ));
DATA(insert ( 1700 701 1746 i ));
/* Allow explicit coercions between int4 and bool */
DATA(insert ( 23 16 2557 e ));
DATA(insert ( 16 23 2558 e ));
/*
* OID category: allow implicit conversion from any integral type (including
* int8, to support OID literals > 2G) to OID, as well as assignment coercion
* from OID to int4 or int8. Similarly for each OID-alias type. Also allow
* implicit coercions between OID and each OID-alias type, as well as
* regproc<->regprocedure and regoper<->regoperator. (Other coercions
* between alias types must pass through OID.)
*/
DATA(insert ( 20 26 1287 i ));
DATA(insert ( 21 26 313 i ));
DATA(insert ( 23 26 0 i ));
DATA(insert ( 26 20 1288 a ));
DATA(insert ( 26 23 0 a ));
DATA(insert ( 26 24 0 i ));
DATA(insert ( 24 26 0 i ));
DATA(insert ( 20 24 1287 i ));
DATA(insert ( 21 24 313 i ));
DATA(insert ( 23 24 0 i ));
DATA(insert ( 24 20 1288 a ));
DATA(insert ( 24 23 0 a ));
DATA(insert ( 24 2202 0 i ));
DATA(insert ( 2202 24 0 i ));
DATA(insert ( 26 2202 0 i ));
DATA(insert ( 2202 26 0 i ));
DATA(insert ( 20 2202 1287 i ));
DATA(insert ( 21 2202 313 i ));
DATA(insert ( 23 2202 0 i ));
DATA(insert ( 2202 20 1288 a ));
DATA(insert ( 2202 23 0 a ));
DATA(insert ( 26 2203 0 i ));
DATA(insert ( 2203 26 0 i ));
DATA(insert ( 20 2203 1287 i ));
DATA(insert ( 21 2203 313 i ));
DATA(insert ( 23 2203 0 i ));
DATA(insert ( 2203 20 1288 a ));
DATA(insert ( 2203 23 0 a ));
DATA(insert ( 2203 2204 0 i ));
DATA(insert ( 2204 2203 0 i ));
DATA(insert ( 26 2204 0 i ));
DATA(insert ( 2204 26 0 i ));
DATA(insert ( 20 2204 1287 i ));
DATA(insert ( 21 2204 313 i ));
DATA(insert ( 23 2204 0 i ));
DATA(insert ( 2204 20 1288 a ));
DATA(insert ( 2204 23 0 a ));
DATA(insert ( 26 2205 0 i ));
DATA(insert ( 2205 26 0 i ));
DATA(insert ( 20 2205 1287 i ));
DATA(insert ( 21 2205 313 i ));
DATA(insert ( 23 2205 0 i ));
DATA(insert ( 2205 20 1288 a ));
DATA(insert ( 2205 23 0 a ));
DATA(insert ( 26 2206 0 i ));
DATA(insert ( 2206 26 0 i ));
DATA(insert ( 20 2206 1287 i ));
DATA(insert ( 21 2206 313 i ));
DATA(insert ( 23 2206 0 i ));
DATA(insert ( 2206 20 1288 a ));
DATA(insert ( 2206 23 0 a ));
/*
* String category: this needs to be tightened up
*/
DATA(insert ( 25 1042 0 i ));
DATA(insert ( 25 1043 0 i ));
DATA(insert ( 1042 25 401 i ));
DATA(insert ( 1042 1043 401 i ));
DATA(insert ( 1043 25 0 i ));
DATA(insert ( 1043 1042 0 i ));
DATA(insert ( 18 25 946 i ));
DATA(insert ( 18 1042 860 a ));
DATA(insert ( 18 1043 946 a ));
DATA(insert ( 19 25 406 i ));
DATA(insert ( 19 1042 408 a ));
DATA(insert ( 19 1043 1401 a ));
DATA(insert ( 25 18 944 a ));
DATA(insert ( 1042 18 944 a ));
DATA(insert ( 1043 18 944 a ));
DATA(insert ( 25 19 407 i ));
DATA(insert ( 1042 19 409 i ));
DATA(insert ( 1043 19 1400 i ));
/* Cross-category casts between int4 and "char" */
DATA(insert ( 18 23 77 e ));
DATA(insert ( 23 18 78 e ));
/*
* Datetime category
*/
DATA(insert ( 702 1082 1179 a ));
DATA(insert ( 702 1083 1364 a ));
DATA(insert ( 702 1114 2023 i ));
DATA(insert ( 702 1184 1173 i ));
DATA(insert ( 703 1186 1177 i ));
DATA(insert ( 1082 1114 2024 i ));
DATA(insert ( 1082 1184 1174 i ));
DATA(insert ( 1083 1186 1370 i ));
DATA(insert ( 1083 1266 2047 i ));
DATA(insert ( 1114 702 2030 a ));
DATA(insert ( 1114 1082 2029 a ));
DATA(insert ( 1114 1083 1316 a ));
DATA(insert ( 1114 1184 2028 i ));
DATA(insert ( 1184 702 1180 a ));
DATA(insert ( 1184 1082 1178 a ));
DATA(insert ( 1184 1083 2019 a ));
DATA(insert ( 1184 1114 2027 a ));
DATA(insert ( 1184 1266 1388 a ));
DATA(insert ( 1186 703 1194 a ));
DATA(insert ( 1186 1083 1419 a ));
DATA(insert ( 1266 1083 2046 a ));
/* Cross-category casts between int4 and abstime, reltime */
DATA(insert ( 23 702 0 e ));
DATA(insert ( 702 23 0 e ));
DATA(insert ( 23 703 0 e ));
DATA(insert ( 703 23 0 e ));
/*
* Geometric category
*/
DATA(insert ( 601 600 1532 e ));
DATA(insert ( 602 600 1533 e ));
DATA(insert ( 602 604 1449 a ));
DATA(insert ( 603 600 1534 e ));
DATA(insert ( 603 601 1541 e ));
DATA(insert ( 603 604 1448 a ));
DATA(insert ( 603 718 1479 e ));
DATA(insert ( 604 600 1540 e ));
DATA(insert ( 604 602 1447 a ));
DATA(insert ( 604 603 1446 e ));
DATA(insert ( 604 718 1474 e ));
DATA(insert ( 718 600 1416 e ));
DATA(insert ( 718 603 1480 e ));
DATA(insert ( 718 604 1544 e ));
/*
* INET category
*/
DATA(insert ( 650 869 0 i ));
DATA(insert ( 869 650 0 i ));
/*
* BitString category
*/
DATA(insert ( 1560 1562 0 i ));
DATA(insert ( 1562 1560 0 i ));
/* Cross-category casts between bit and int4, int8 */
DATA(insert ( 20 1560 2075 e ));
DATA(insert ( 23 1560 1683 e ));
DATA(insert ( 1560 20 2076 e ));
DATA(insert ( 1560 23 1684 e ));
/*
* Cross-category casts to and from TEXT
*
* For historical reasons, most casts to TEXT are implicit. This is BAD
* and should be reined in.
*/
DATA(insert ( 20 25 1289 i ));
DATA(insert ( 25 20 1290 e ));
DATA(insert ( 21 25 113 i ));
DATA(insert ( 25 21 818 e ));
DATA(insert ( 23 25 112 i ));
DATA(insert ( 25 23 819 e ));
DATA(insert ( 26 25 114 i ));
DATA(insert ( 25 26 817 e ));
DATA(insert ( 25 650 1714 e ));
DATA(insert ( 700 25 841 i ));
DATA(insert ( 25 700 839 e ));
DATA(insert ( 701 25 840 i ));
DATA(insert ( 25 701 838 e ));
DATA(insert ( 829 25 752 e ));
DATA(insert ( 25 829 767 e ));
DATA(insert ( 650 25 730 e ));
DATA(insert ( 869 25 730 e ));
DATA(insert ( 25 869 1713 e ));
DATA(insert ( 1082 25 749 i ));
DATA(insert ( 25 1082 748 e ));
DATA(insert ( 1083 25 948 i ));
DATA(insert ( 25 1083 837 e ));
DATA(insert ( 1114 25 2034 i ));
DATA(insert ( 25 1114 2022 e ));
DATA(insert ( 1184 25 1192 i ));
DATA(insert ( 25 1184 1191 e ));
DATA(insert ( 1186 25 1193 i ));
DATA(insert ( 25 1186 1263 e ));
DATA(insert ( 1266 25 939 i ));
DATA(insert ( 25 1266 938 e ));
DATA(insert ( 1700 25 1688 i ));
DATA(insert ( 25 1700 1686 e ));
/*
* Cross-category casts to and from VARCHAR
*
* We support all the same casts as for TEXT, but none are implicit.
*/
DATA(insert ( 20 1043 1289 a ));
DATA(insert ( 1043 20 1290 e ));
DATA(insert ( 21 1043 113 a ));
DATA(insert ( 1043 21 818 e ));
DATA(insert ( 23 1043 112 a ));
DATA(insert ( 1043 23 819 e ));
DATA(insert ( 26 1043 114 a ));
DATA(insert ( 1043 26 817 e ));
DATA(insert ( 1043 650 1714 e ));
DATA(insert ( 700 1043 841 a ));
DATA(insert ( 1043 700 839 e ));
DATA(insert ( 701 1043 840 a ));
DATA(insert ( 1043 701 838 e ));
DATA(insert ( 829 1043 752 e ));
DATA(insert ( 1043 829 767 e ));
DATA(insert ( 650 1043 730 e ));
DATA(insert ( 869 1043 730 e ));
DATA(insert ( 1043 869 1713 e ));
DATA(insert ( 1082 1043 749 a ));
DATA(insert ( 1043 1082 748 e ));
DATA(insert ( 1083 1043 948 a ));
DATA(insert ( 1043 1083 837 e ));
DATA(insert ( 1114 1043 2034 a ));
DATA(insert ( 1043 1114 2022 e ));
DATA(insert ( 1184 1043 1192 a ));
DATA(insert ( 1043 1184 1191 e ));
DATA(insert ( 1186 1043 1193 a ));
DATA(insert ( 1043 1186 1263 e ));
DATA(insert ( 1266 1043 939 a ));
DATA(insert ( 1043 1266 938 e ));
DATA(insert ( 1700 1043 1688 a ));
DATA(insert ( 1043 1700 1686 e ));
/*
* Cross-category casts to and from BPCHAR
*
* A function supporting cast to TEXT/VARCHAR can be used for cast to BPCHAR,
* but the other direction is okay only if the function treats trailing
* blanks as insignificant. So this is a subset of the VARCHAR list.
* (Arguably the holdouts should be fixed, but I'm not doing that now...)
*/
DATA(insert ( 20 1042 1289 a ));
DATA(insert ( 1042 20 1290 e ));
DATA(insert ( 21 1042 113 a ));
DATA(insert ( 1042 21 818 e ));
DATA(insert ( 23 1042 112 a ));
DATA(insert ( 1042 23 819 e ));
DATA(insert ( 26 1042 114 a ));
DATA(insert ( 1042 26 817 e ));
DATA(insert ( 700 1042 841 a ));
DATA(insert ( 1042 700 839 e ));
DATA(insert ( 701 1042 840 a ));
DATA(insert ( 1042 701 838 e ));
DATA(insert ( 829 1042 752 e ));
DATA(insert ( 1042 829 767 e ));
DATA(insert ( 650 1042 730 e ));
DATA(insert ( 869 1042 730 e ));
DATA(insert ( 1082 1042 749 a ));
DATA(insert ( 1042 1082 748 e ));
DATA(insert ( 1083 1042 948 a ));
DATA(insert ( 1042 1083 837 e ));
DATA(insert ( 1114 1042 2034 a ));
DATA(insert ( 1042 1114 2022 e ));
DATA(insert ( 1184 1042 1192 a ));
DATA(insert ( 1042 1184 1191 e ));
DATA(insert ( 1186 1042 1193 a ));
DATA(insert ( 1042 1186 1263 e ));
DATA(insert ( 1266 1042 939 a ));
DATA(insert ( 1042 1266 938 e ));
DATA(insert ( 1700 1042 1688 a ));
DATA(insert ( 1042 1700 1686 e ));
/*
* Length-coercion functions
*/
DATA(insert ( 1042 1042 668 i ));
DATA(insert ( 1043 1043 669 i ));
DATA(insert ( 1083 1083 1968 i ));
DATA(insert ( 1114 1114 1961 i ));
DATA(insert ( 1184 1184 1967 i ));
DATA(insert ( 1186 1186 1200 i ));
DATA(insert ( 1266 1266 1969 i ));
DATA(insert ( 1560 1560 1685 i ));
DATA(insert ( 1562 1562 1687 i ));
DATA(insert ( 1700 1700 1703 i ));
#endif /* PG_CAST_H */
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