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- /*-------------------------------------------------------------------------
- *
- * fmgrtab.h
- * The function manager's table of internal functions.
- *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- * src/include/utils/fmgrtab.h
- *
- *-------------------------------------------------------------------------
- */
- #ifndef FMGRTAB_H
- #define FMGRTAB_H
-
- #include "access/transam.h"
- #include "fmgr.h"
-
-
- /*
- * This table stores info about all the built-in functions (ie, functions
- * that are compiled into the Postgres executable).
- */
-
- typedef struct
- {
- Oid foid; /* OID 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 */
- const char *funcName; /* C name of the function */
- PGFunction func; /* pointer to compiled function */
- } FmgrBuiltin;
-
- extern const FmgrBuiltin fmgr_builtins[];
-
- extern const int fmgr_nbuiltins; /* number of entries in table */
-
- extern const Oid fmgr_last_builtin_oid; /* highest function OID in table */
-
- /*
- * Mapping from a builtin function's OID to its index in the fmgr_builtins
- * array. This is indexed from 0 through fmgr_last_builtin_oid.
- */
- #define InvalidOidBuiltinMapping PG_UINT16_MAX
- extern const uint16 fmgr_builtin_oid_index[];
-
- #endif /* FMGRTAB_H */
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