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/*-------------------------------------------------------------------------
*
* parse_func.h
*
*
*
* Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/parser/parse_func.h
*
*-------------------------------------------------------------------------
*/
#ifndef PARSE_FUNC_H
#define PARSE_FUNC_H
#include "catalog/namespace.h"
#include "parser/parse_node.h"
/* Result codes for func_get_detail */
typedef enum
{
FUNCDETAIL_NOTFOUND, /* no matching function */
FUNCDETAIL_MULTIPLE, /* too many matching functions */
FUNCDETAIL_NORMAL, /* found a matching regular function */
FUNCDETAIL_PROCEDURE, /* found a matching procedure */
FUNCDETAIL_AGGREGATE, /* found a matching aggregate function */
FUNCDETAIL_WINDOWFUNC, /* found a matching window function */
FUNCDETAIL_COERCION /* it's a type coercion request */
} FuncDetailCode;
extern Node *ParseFuncOrColumn(ParseState *pstate, List *funcname, List *fargs,
Node *last_srf, FuncCall *fn, bool proc_call,
int location);
extern FuncDetailCode func_get_detail(List *funcname,
List *fargs, List *fargnames,
int nargs, Oid *argtypes,
bool expand_variadic, bool expand_defaults,
bool include_out_arguments,
Oid *funcid, Oid *rettype,
bool *retset, int *nvargs, Oid *vatype,
Oid **true_typeids, List **argdefaults);
extern int func_match_argtypes(int nargs,
Oid *input_typeids,
FuncCandidateList raw_candidates,
FuncCandidateList *candidates);
extern FuncCandidateList func_select_candidate(int nargs,
Oid *input_typeids,
FuncCandidateList candidates);
extern void make_fn_arguments(ParseState *pstate,
List *fargs,
Oid *actual_arg_types,
Oid *declared_arg_types);
extern const char *funcname_signature_string(const char *funcname, int nargs,
List *argnames, const Oid *argtypes);
extern const char *func_signature_string(List *funcname, int nargs,
List *argnames, const Oid *argtypes);
extern Oid LookupFuncName(List *funcname, int nargs, const Oid *argtypes,
bool missing_ok);
extern Oid LookupFuncWithArgs(ObjectType objtype, ObjectWithArgs *func,
bool missing_ok);
extern void check_srf_call_placement(ParseState *pstate, Node *last_srf,
int location);
#endif /* PARSE_FUNC_H */
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