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📁 ..
📄 catalog.h(2.05 KB)
📄 catversion.h(2.53 KB)
📄 dependency.h(9.44 KB)
📄 genbki.h(1.75 KB)
📄 heap.h(3.81 KB)
📄 index.h(3.03 KB)
📄 indexing.h(16.29 KB)
📄 namespace.h(5.63 KB)
📄 objectaccess.h(1.62 KB)
📄 objectaddress.h(1.21 KB)
📄 pg_aggregate.h(10.36 KB)
📄 pg_am.h(5.8 KB)
📄 pg_amop.h(24.52 KB)
📄 pg_amproc.h(14.01 KB)
📄 pg_attrdef.h(1.63 KB)
📄 pg_attribute.h(6.79 KB)
📄 pg_auth_members.h(1.75 KB)
📄 pg_authid.h(3.19 KB)
📄 pg_cast.h(11.48 KB)
📄 pg_class.h(5.93 KB)
📄 pg_collation.h(2.23 KB)
📄 pg_collation_fn.h(735 B)
📄 pg_constraint.h(8.11 KB)
📄 pg_control.h(7.98 KB)
📄 pg_conversion.h(2.12 KB)
📄 pg_conversion_fn.h(833 B)
📄 pg_database.h(2.63 KB)
📄 pg_db_role_setting.h(1.96 KB)
📄 pg_default_acl.h(2.1 KB)
📄 pg_depend.h(2.73 KB)
📄 pg_description.h(2.92 KB)
📄 pg_enum.h(1.82 KB)
📄 pg_extension.h(2.09 KB)
📄 pg_foreign_data_wrapper.h(2.02 KB)
📄 pg_foreign_server.h(1.87 KB)
📄 pg_foreign_table.h(1.59 KB)
📄 pg_index.h(3.76 KB)
📄 pg_inherits.h(1.46 KB)
📄 pg_inherits_fn.h(850 B)
📄 pg_language.h(2.38 KB)
📄 pg_largeobject.h(1.79 KB)
📄 pg_largeobject_metadata.h(1.67 KB)
📄 pg_namespace.h(2.23 KB)
📄 pg_opclass.h(11.43 KB)
📄 pg_operator.h(95.73 KB)
📄 pg_opfamily.h(6.34 KB)
📄 pg_pltemplate.h(3.11 KB)
📄 pg_proc.h(450.69 KB)
📄 pg_proc_fn.h(1.14 KB)
📄 pg_range.h(2.53 KB)
📄 pg_rewrite.h(1.85 KB)
📄 pg_seclabel.h(1.33 KB)
📄 pg_shdepend.h(2.75 KB)
📄 pg_shdescription.h(2.39 KB)
📄 pg_shseclabel.h(1.31 KB)
📄 pg_statistic.h(11.19 KB)
📄 pg_tablespace.h(1.85 KB)
📄 pg_trigger.h(5.61 KB)
📄 pg_ts_config.h(1.61 KB)
📄 pg_ts_config_map.h(2.28 KB)
📄 pg_ts_dict.h(1.78 KB)
📄 pg_ts_parser.h(1.95 KB)
📄 pg_ts_template.h(2.1 KB)
📄 pg_type.h(41.38 KB)
📄 pg_type_fn.h(2.08 KB)
📄 pg_user_mapping.h(1.59 KB)
📄 schemapg.h(15.78 KB)
📄 storage.h(1.33 KB)
📄 toasting.h(1.91 KB)

Editing: pg_cast.h

/*-------------------------------------------------------------------------
 *
 * 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) 2002-2012, PostgreSQL Global Development Group
 *
 * src/include/catalog/pg_cast.h
 *
 * NOTES
 *	  the genbki.pl script reads this file and generates .bki
 *	  information from the DATA() statements.
 *
 *-------------------------------------------------------------------------
 */
#ifndef PG_CAST_H
#define PG_CAST_H

#include "catalog/genbki.h"

/* ----------------
 *		pg_cast definition.  cpp turns this into
 *		typedef struct FormData_pg_cast
 * ----------------
 */
#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 */
	char		castmethod;		/* cast method */
} 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;

/*
 * The allowable values for pg_cast.castmethod are specified by this enum.
 * Since castmethod is stored as a "char", we use ASCII codes for human
 * convenience in reading the table.
 */
typedef enum CoercionMethod
{
	COERCION_METHOD_FUNCTION = 'f',		/* use a function */
	COERCION_METHOD_BINARY = 'b',		/* types are binary-compatible */
	COERCION_METHOD_INOUT = 'i' /* use input/output functions */
} CoercionMethod;

/* ----------------
 *		compiler constants for pg_cast
 * ----------------
 */
#define Natts_pg_cast				5
#define Anum_pg_cast_castsource		1
#define Anum_pg_cast_casttarget		2
#define Anum_pg_cast_castfunc		3
#define Anum_pg_cast_castcontext	4
#define Anum_pg_cast_castmethod		5

/* ----------------
 *		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 f ));
DATA(insert (	20	 23  480 a f ));
DATA(insert (	20	700  652 i f ));
DATA(insert (	20	701  482 i f ));
DATA(insert (	20 1700 1781 i f ));
DATA(insert (	21	 20  754 i f ));
DATA(insert (	21	 23  313 i f ));
DATA(insert (	21	700  236 i f ));
DATA(insert (	21	701  235 i f ));
DATA(insert (	21 1700 1782 i f ));
DATA(insert (	23	 20  481 i f ));
DATA(insert (	23	 21  314 a f ));
DATA(insert (	23	700  318 i f ));
DATA(insert (	23	701  316 i f ));
DATA(insert (	23 1700 1740 i f ));
DATA(insert (  700	 20  653 a f ));
DATA(insert (  700	 21  238 a f ));
DATA(insert (  700	 23  319 a f ));
DATA(insert (  700	701  311 i f ));
DATA(insert (  700 1700 1742 a f ));
DATA(insert (  701	 20  483 a f ));
DATA(insert (  701	 21  237 a f ));
DATA(insert (  701	 23  317 a f ));
DATA(insert (  701	700  312 a f ));
DATA(insert (  701 1700 1743 a f ));
DATA(insert ( 1700	 20 1779 a f ));
DATA(insert ( 1700	 21 1783 a f ));
DATA(insert ( 1700	 23 1744 a f ));
DATA(insert ( 1700	700 1745 i f ));
DATA(insert ( 1700	701 1746 i f ));
DATA(insert (  790 1700 3823 a f ));
DATA(insert ( 1700	790 3824 a f ));
DATA(insert ( 23	790 3811 a f ));
DATA(insert ( 20	790 3812 a f ));

/* Allow explicit coercions between int4 and bool */
DATA(insert (	23	16	2557 e f ));
DATA(insert (	16	23	2558 e f ));

/*
 * 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.)	Lastly, there are implicit
 * casts from text and varchar to regclass, which exist mainly to support
 * legacy forms of nextval() and related functions.
 */
DATA(insert (	20	 26 1287 i f ));
DATA(insert (	21	 26  313 i f ));
DATA(insert (	23	 26    0 i b ));
DATA(insert (	26	 20 1288 a f ));
DATA(insert (	26	 23    0 a b ));
DATA(insert (	26	 24    0 i b ));
DATA(insert (	24	 26    0 i b ));
DATA(insert (	20	 24 1287 i f ));
DATA(insert (	21	 24  313 i f ));
DATA(insert (	23	 24    0 i b ));
DATA(insert (	24	 20 1288 a f ));
DATA(insert (	24	 23    0 a b ));
DATA(insert (	24 2202    0 i b ));
DATA(insert ( 2202	 24    0 i b ));
DATA(insert (	26 2202    0 i b ));
DATA(insert ( 2202	 26    0 i b ));
DATA(insert (	20 2202 1287 i f ));
DATA(insert (	21 2202  313 i f ));
DATA(insert (	23 2202    0 i b ));
DATA(insert ( 2202	 20 1288 a f ));
DATA(insert ( 2202	 23    0 a b ));
DATA(insert (	26 2203    0 i b ));
DATA(insert ( 2203	 26    0 i b ));
DATA(insert (	20 2203 1287 i f ));
DATA(insert (	21 2203  313 i f ));
DATA(insert (	23 2203    0 i b ));
DATA(insert ( 2203	 20 1288 a f ));
DATA(insert ( 2203	 23    0 a b ));
DATA(insert ( 2203 2204    0 i b ));
DATA(insert ( 2204 2203    0 i b ));
DATA(insert (	26 2204    0 i b ));
DATA(insert ( 2204	 26    0 i b ));
DATA(insert (	20 2204 1287 i f ));
DATA(insert (	21 2204  313 i f ));
DATA(insert (	23 2204    0 i b ));
DATA(insert ( 2204	 20 1288 a f ));
DATA(insert ( 2204	 23    0 a b ));
DATA(insert (	26 2205    0 i b ));
DATA(insert ( 2205	 26    0 i b ));
DATA(insert (	20 2205 1287 i f ));
DATA(insert (	21 2205  313 i f ));
DATA(insert (	23 2205    0 i b ));
DATA(insert ( 2205	 20 1288 a f ));
DATA(insert ( 2205	 23    0 a b ));
DATA(insert (	26 2206    0 i b ));
DATA(insert ( 2206	 26    0 i b ));
DATA(insert (	20 2206 1287 i f ));
DATA(insert (	21 2206  313 i f ));
DATA(insert (	23 2206    0 i b ));
DATA(insert ( 2206	 20 1288 a f ));
DATA(insert ( 2206	 23    0 a b ));
DATA(insert (	26 3734    0 i b ));
DATA(insert ( 3734	 26    0 i b ));
DATA(insert (	20 3734 1287 i f ));
DATA(insert (	21 3734  313 i f ));
DATA(insert (	23 3734    0 i b ));
DATA(insert ( 3734	 20 1288 a f ));
DATA(insert ( 3734	 23    0 a b ));
DATA(insert (	26 3769    0 i b ));
DATA(insert ( 3769	 26    0 i b ));
DATA(insert (	20 3769 1287 i f ));
DATA(insert (	21 3769  313 i f ));
DATA(insert (	23 3769    0 i b ));
DATA(insert ( 3769	 20 1288 a f ));
DATA(insert ( 3769	 23    0 a b ));
DATA(insert (	25 2205 1079 i f ));
DATA(insert ( 1043 2205 1079 i f ));

/*
 * String category
 */
DATA(insert (	25 1042    0 i b ));
DATA(insert (	25 1043    0 i b ));
DATA(insert ( 1042	 25  401 i f ));
DATA(insert ( 1042 1043  401 i f ));
DATA(insert ( 1043	 25    0 i b ));
DATA(insert ( 1043 1042    0 i b ));
DATA(insert (	18	 25  946 i f ));
DATA(insert (	18 1042  860 a f ));
DATA(insert (	18 1043  946 a f ));
DATA(insert (	19	 25  406 i f ));
DATA(insert (	19 1042  408 a f ));
DATA(insert (	19 1043 1401 a f ));
DATA(insert (	25	 18  944 a f ));
DATA(insert ( 1042	 18  944 a f ));
DATA(insert ( 1043	 18  944 a f ));
DATA(insert (	25	 19  407 i f ));
DATA(insert ( 1042	 19  409 i f ));
DATA(insert ( 1043	 19 1400 i f ));

/* Allow explicit coercions between int4 and "char" */
DATA(insert (	18	 23   77 e f ));
DATA(insert (	23	 18   78 e f ));

/* pg_node_tree can be coerced to, but not from, text */
DATA(insert (  194	 25    0 i b ));

/*
 * Datetime category
 */
DATA(insert (  702 1082 1179 a f ));
DATA(insert (  702 1083 1364 a f ));
DATA(insert (  702 1114 2023 i f ));
DATA(insert (  702 1184 1173 i f ));
DATA(insert (  703 1186 1177 i f ));
DATA(insert ( 1082 1114 2024 i f ));
DATA(insert ( 1082 1184 1174 i f ));
DATA(insert ( 1083 1186 1370 i f ));
DATA(insert ( 1083 1266 2047 i f ));
DATA(insert ( 1114	702 2030 a f ));
DATA(insert ( 1114 1082 2029 a f ));
DATA(insert ( 1114 1083 1316 a f ));
DATA(insert ( 1114 1184 2028 i f ));
DATA(insert ( 1184	702 1180 a f ));
DATA(insert ( 1184 1082 1178 a f ));
DATA(insert ( 1184 1083 2019 a f ));
DATA(insert ( 1184 1114 2027 a f ));
DATA(insert ( 1184 1266 1388 a f ));
DATA(insert ( 1186	703 1194 a f ));
DATA(insert ( 1186 1083 1419 a f ));
DATA(insert ( 1266 1083 2046 a f ));
/* Cross-category casts between int4 and abstime, reltime */
DATA(insert (	23	702    0 e b ));
DATA(insert (  702	 23    0 e b ));
DATA(insert (	23	703    0 e b ));
DATA(insert (  703	 23    0 e b ));

/*
 * Geometric category
 */
DATA(insert (  601	600 1532 e f ));
DATA(insert (  602	600 1533 e f ));
DATA(insert (  602	604 1449 a f ));
DATA(insert (  603	600 1534 e f ));
DATA(insert (  603	601 1541 e f ));
DATA(insert (  603	604 1448 a f ));
DATA(insert (  603	718 1479 e f ));
DATA(insert (  604	600 1540 e f ));
DATA(insert (  604	602 1447 a f ));
DATA(insert (  604	603 1446 e f ));
DATA(insert (  604	718 1474 e f ));
DATA(insert (  718	600 1416 e f ));
DATA(insert (  718	603 1480 e f ));
DATA(insert (  718	604 1544 e f ));

/*
 * INET category
 */
DATA(insert (  650	869    0 i b ));
DATA(insert (  869	650 1715 a f ));

/*
 * BitString category
 */
DATA(insert ( 1560 1562    0 i b ));
DATA(insert ( 1562 1560    0 i b ));
/* Cross-category casts between bit and int4, int8 */
DATA(insert (	20 1560 2075 e f ));
DATA(insert (	23 1560 1683 e f ));
DATA(insert ( 1560	 20 2076 e f ));
DATA(insert ( 1560	 23 1684 e f ));

/*
 * Cross-category casts to and from TEXT
 *
 * We need entries here only for a few specialized cases where the behavior
 * of the cast function differs from the datatype's I/O functions.  Otherwise,
 * parse_coerce.c will generate CoerceViaIO operations without any prompting.
 *
 * Note that the castcontext values specified here should be no stronger than
 * parse_coerce.c's automatic casts ('a' to text, 'e' from text) else odd
 * behavior will ensue when the automatic cast is applied instead of the
 * pg_cast entry!
 */
DATA(insert (  650	 25  730 a f ));
DATA(insert (  869	 25  730 a f ));
DATA(insert (	16	 25 2971 a f ));
DATA(insert (  142	 25    0 a b ));
DATA(insert (	25	142 2896 e f ));

/*
 * Cross-category casts to and from VARCHAR
 *
 * We support all the same casts as for TEXT.
 */
DATA(insert (  650 1043  730 a f ));
DATA(insert (  869 1043  730 a f ));
DATA(insert (	16 1043 2971 a f ));
DATA(insert (  142 1043    0 a b ));
DATA(insert ( 1043	142 2896 e f ));

/*
 * Cross-category casts to and from BPCHAR
 *
 * We support all the same casts as for TEXT.
 */
DATA(insert (  650 1042  730 a f ));
DATA(insert (  869 1042  730 a f ));
DATA(insert (	16 1042 2971 a f ));
DATA(insert (  142 1042    0 a b ));
DATA(insert ( 1042	142 2896 e f ));

/*
 * Length-coercion functions
 */
DATA(insert ( 1042 1042  668 i f ));
DATA(insert ( 1043 1043  669 i f ));
DATA(insert ( 1083 1083 1968 i f ));
DATA(insert ( 1114 1114 1961 i f ));
DATA(insert ( 1184 1184 1967 i f ));
DATA(insert ( 1186 1186 1200 i f ));
DATA(insert ( 1266 1266 1969 i f ));
DATA(insert ( 1560 1560 1685 i f ));
DATA(insert ( 1562 1562 1687 i f ));
DATA(insert ( 1700 1700 1703 i f ));

#endif   /* PG_CAST_H */

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Editing: pg_cast.h

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