src/libpq/include/utils/fmgrtab.h

Ir a la documentación de este archivo.

/*-------------------------------------------------------------------------
 *
 * fmgrtab.h
 *        The function manager's table of internal functions.
 *
 * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * $PostgreSQL: pgsql/src/include/utils/fmgrtab.h,v 1.25 2005/10/15 02:49:46 momjian Exp $
 *
 *-------------------------------------------------------------------------
 */
#ifndef FMGRTAB_H
#define FMGRTAB_H

#include "fmgr.h"


/*
 * This table stores info about all the built-in functions (ie, functions
 * that are compiled into the Postgres executable).  The table entries are
 * required to appear in Oid order, so that binary search can be used.
 */

typedef struct
{
        Oid                     foid;                   /* OID of the function */
        const char *funcName;           /* C name of the function */
        short           nargs;                  /* 0..FUNC_MAX_ARGS, or -1 if variable count */
        bool            strict;                 /* T if function is "strict" */
        bool            retset;                 /* T if function returns a set */
        PGFunction      func;                   /* pointer to compiled function */
} FmgrBuiltin;

extern const FmgrBuiltin fmgr_builtins[];

extern const int fmgr_nbuiltins;        /* number of entries in table */

#endif   /* FMGRTAB_H */