| /*------------------------------------------------------------------------- | |
| * | |
| * pg_amproc.h | |
| * definition of the "access method procedure" system catalog (pg_amproc) | |
| * | |
| * The amproc table identifies support procedures associated with index | |
| * operator families and classes. These procedures can't be listed in pg_amop | |
| * since they are not the implementation of any indexable operator. | |
| * | |
| * The primary key for this table is <amprocfamily, amproclefttype, | |
| * amprocrighttype, amprocnum>. The "default" support functions for a | |
| * particular opclass within the family are those with amproclefttype = | |
| * amprocrighttype = opclass's opcintype. These are the ones loaded into the | |
| * relcache for an index and typically used for internal index operations. | |
| * Other support functions are typically used to handle cross-type indexable | |
| * operators with oprleft/oprright matching the entry's amproclefttype and | |
| * amprocrighttype. The exact behavior depends on the index AM, however, and | |
| * some don't pay attention to non-default functions at all. | |
| * | |
| * | |
| * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group | |
| * Portions Copyright (c) 1994, Regents of the University of California | |
| * | |
| * src/include/catalog/pg_amproc.h | |
| * | |
| * NOTES | |
| * The Catalog.pm module reads this file and derives schema | |
| * information. | |
| * | |
| *------------------------------------------------------------------------- | |
| */ | |
| /* ---------------- | |
| * pg_amproc definition. cpp turns this into | |
| * typedef struct FormData_pg_amproc | |
| * ---------------- | |
| */ | |
| CATALOG(pg_amproc,2603,AccessMethodProcedureRelationId) | |
| { | |
| Oid oid; /* oid */ | |
| /* the index opfamily this entry is for */ | |
| Oid amprocfamily BKI_LOOKUP(pg_opfamily); | |
| /* procedure's left input data type */ | |
| Oid amproclefttype BKI_LOOKUP(pg_type); | |
| /* procedure's right input data type */ | |
| Oid amprocrighttype BKI_LOOKUP(pg_type); | |
| /* support procedure index */ | |
| int16 amprocnum; | |
| /* OID of the proc */ | |
| regproc amproc BKI_LOOKUP(pg_proc); | |
| } FormData_pg_amproc; | |
| /* ---------------- | |
| * Form_pg_amproc corresponds to a pointer to a tuple with | |
| * the format of pg_amproc relation. | |
| * ---------------- | |
| */ | |
| typedef FormData_pg_amproc *Form_pg_amproc; | |
| DECLARE_UNIQUE_INDEX(pg_amproc_fam_proc_index, 2655, AccessMethodProcedureIndexId, on pg_amproc using btree(amprocfamily oid_ops, amproclefttype oid_ops, amprocrighttype oid_ops, amprocnum int2_ops)); | |
| DECLARE_UNIQUE_INDEX_PKEY(pg_amproc_oid_index, 2757, AccessMethodProcedureOidIndexId, on pg_amproc using btree(oid oid_ops)); | |