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- /*-------------------------------------------------------------------------
- *
- * parse_func.h
- *
- *
- *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- * src/include/parser/parse_func.h
- *
- *-------------------------------------------------------------------------
- */
- #ifndef PARSER_FUNC_H
- #define PARSER_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,
- 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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