176 lines
5.0 KiB
C
176 lines
5.0 KiB
C
/*-------------------------------------------------------------------------
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*
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* pg_proc.h
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* definition of the system "procedure" relation (pg_proc)
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*
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* Portions Copyright (c) 1996-2018, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/catalog/pg_proc.h
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*
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* NOTES
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* The Catalog.pm module reads this file and derives schema
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* information.
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PG_PROC_H
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#define PG_PROC_H
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#include "catalog/genbki.h"
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#include "catalog/pg_proc_d.h"
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/* ----------------
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* pg_proc definition. cpp turns this into
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* typedef struct FormData_pg_proc
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* ----------------
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*/
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CATALOG(pg_proc,1255,ProcedureRelationId) BKI_BOOTSTRAP BKI_ROWTYPE_OID(81,ProcedureRelation_Rowtype_Id) BKI_SCHEMA_MACRO
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{
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/* procedure name */
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NameData proname;
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/* OID of namespace containing this proc */
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Oid pronamespace BKI_DEFAULT(PGNSP);
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/* procedure owner */
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Oid proowner BKI_DEFAULT(PGUID);
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/* OID of pg_language entry */
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Oid prolang BKI_DEFAULT(12);
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/* estimated execution cost */
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float4 procost BKI_DEFAULT(1);
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/* estimated # of rows out (if proretset) */
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float4 prorows BKI_DEFAULT(0);
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/* element type of variadic array, or 0 */
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Oid provariadic BKI_DEFAULT(0) BKI_LOOKUP(pg_type);
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/* transforms calls to it during planning */
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regproc protransform BKI_DEFAULT(0) BKI_LOOKUP(pg_proc);
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/* see PROKIND_ categories below */
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char prokind BKI_DEFAULT(f);
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/* security definer */
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bool prosecdef BKI_DEFAULT(f);
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/* is it a leak-proof function? */
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bool proleakproof BKI_DEFAULT(f);
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/* strict with respect to NULLs? */
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bool proisstrict BKI_DEFAULT(t);
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/* returns a set? */
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bool proretset BKI_DEFAULT(f);
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/* see PROVOLATILE_ categories below */
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char provolatile BKI_DEFAULT(i);
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/* see PROPARALLEL_ categories below */
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char proparallel BKI_DEFAULT(s);
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/* number of arguments */
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/* Note: need not be given in pg_proc.dat; genbki.pl will compute it */
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int16 pronargs;
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/* number of arguments with defaults */
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int16 pronargdefaults BKI_DEFAULT(0);
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/* OID of result type */
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Oid prorettype BKI_LOOKUP(pg_type);
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/*
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* variable-length fields start here, but we allow direct access to
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* proargtypes
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*/
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/* parameter types (excludes OUT params) */
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oidvector proargtypes BKI_LOOKUP(pg_type);
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#ifdef CATALOG_VARLEN
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/* all param types (NULL if IN only) */
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Oid proallargtypes[1] BKI_DEFAULT(_null_) BKI_LOOKUP(pg_type);
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/* parameter modes (NULL if IN only) */
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char proargmodes[1] BKI_DEFAULT(_null_);
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/* parameter names (NULL if no names) */
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text proargnames[1] BKI_DEFAULT(_null_);
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/* list of expression trees for argument defaults (NULL if none) */
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pg_node_tree proargdefaults BKI_DEFAULT(_null_);
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/* types for which to apply transforms */
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Oid protrftypes[1] BKI_DEFAULT(_null_);
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/* procedure source text */
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text prosrc BKI_FORCE_NOT_NULL;
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/* secondary procedure info (can be NULL) */
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text probin BKI_DEFAULT(_null_);
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/* procedure-local GUC settings */
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text proconfig[1] BKI_DEFAULT(_null_);
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/* access permissions */
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aclitem proacl[1] BKI_DEFAULT(_null_);
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#endif
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} FormData_pg_proc;
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/* ----------------
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* Form_pg_proc corresponds to a pointer to a tuple with
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* the format of pg_proc relation.
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* ----------------
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*/
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typedef FormData_pg_proc *Form_pg_proc;
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#ifdef EXPOSE_TO_CLIENT_CODE
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/*
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* Symbolic values for prokind column
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*/
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#define PROKIND_FUNCTION 'f'
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#define PROKIND_AGGREGATE 'a'
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#define PROKIND_WINDOW 'w'
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#define PROKIND_PROCEDURE 'p'
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/*
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* Symbolic values for provolatile column: these indicate whether the result
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* of a function is dependent *only* on the values of its explicit arguments,
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* or can change due to outside factors (such as parameter variables or
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* table contents). NOTE: functions having side-effects, such as setval(),
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* must be labeled volatile to ensure they will not get optimized away,
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* even if the actual return value is not changeable.
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*/
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#define PROVOLATILE_IMMUTABLE 'i' /* never changes for given input */
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#define PROVOLATILE_STABLE 's' /* does not change within a scan */
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#define PROVOLATILE_VOLATILE 'v' /* can change even within a scan */
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/*
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* Symbolic values for proparallel column: these indicate whether a function
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* can be safely be run in a parallel backend, during parallelism but
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* necessarily in the master, or only in non-parallel mode.
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*/
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#define PROPARALLEL_SAFE 's' /* can run in worker or master */
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#define PROPARALLEL_RESTRICTED 'r' /* can run in parallel master only */
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#define PROPARALLEL_UNSAFE 'u' /* banned while in parallel mode */
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/*
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* Symbolic values for proargmodes column. Note that these must agree with
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* the FunctionParameterMode enum in parsenodes.h; we declare them here to
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* be accessible from either header.
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*/
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#define PROARGMODE_IN 'i'
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#define PROARGMODE_OUT 'o'
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#define PROARGMODE_INOUT 'b'
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#define PROARGMODE_VARIADIC 'v'
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#define PROARGMODE_TABLE 't'
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#endif /* EXPOSE_TO_CLIENT_CODE */
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#endif /* PG_PROC_H */
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