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parse_func.h
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1 /*-------------------------------------------------------------------------
2  *
3  * parse_func.h
4  *
5  *
6  *
7  * Portions Copyright (c) 1996-2018, PostgreSQL Global Development Group
8  * Portions Copyright (c) 1994, Regents of the University of California
9  *
10  * src/include/parser/parse_func.h
11  *
12  *-------------------------------------------------------------------------
13  */
14 #ifndef PARSER_FUNC_H
15 #define PARSER_FUNC_H
16 
17 #include "catalog/namespace.h"
18 #include "parser/parse_node.h"
19 
20 
21 /* Result codes for func_get_detail */
22 typedef enum
23 {
24  FUNCDETAIL_NOTFOUND, /* no matching function */
25  FUNCDETAIL_MULTIPLE, /* too many matching functions */
26  FUNCDETAIL_NORMAL, /* found a matching regular function */
27  FUNCDETAIL_PROCEDURE, /* found a matching procedure */
28  FUNCDETAIL_AGGREGATE, /* found a matching aggregate function */
29  FUNCDETAIL_WINDOWFUNC, /* found a matching window function */
30  FUNCDETAIL_COERCION /* it's a type coercion request */
32 
33 
34 extern Node *ParseFuncOrColumn(ParseState *pstate, List *funcname, List *fargs,
35  Node *last_srf, FuncCall *fn, bool proc_call,
36  int location);
37 
38 extern FuncDetailCode func_get_detail(List *funcname,
39  List *fargs, List *fargnames,
40  int nargs, Oid *argtypes,
41  bool expand_variadic, bool expand_defaults,
42  Oid *funcid, Oid *rettype,
43  bool *retset, int *nvargs, Oid *vatype,
44  Oid **true_typeids, List **argdefaults);
45 
46 extern int func_match_argtypes(int nargs,
47  Oid *input_typeids,
48  FuncCandidateList raw_candidates,
49  FuncCandidateList *candidates);
50 
52  Oid *input_typeids,
53  FuncCandidateList candidates);
54 
55 extern void make_fn_arguments(ParseState *pstate,
56  List *fargs,
57  Oid *actual_arg_types,
58  Oid *declared_arg_types);
59 
60 extern const char *funcname_signature_string(const char *funcname, int nargs,
61  List *argnames, const Oid *argtypes);
62 extern const char *func_signature_string(List *funcname, int nargs,
63  List *argnames, const Oid *argtypes);
64 
65 extern Oid LookupFuncName(List *funcname, int nargs, const Oid *argtypes,
66  bool noError);
67 extern Oid LookupFuncWithArgs(ObjectType objtype, ObjectWithArgs *func,
68  bool noError);
69 
70 extern void check_srf_call_placement(ParseState *pstate, Node *last_srf,
71  int location);
72 
73 #endif /* PARSE_FUNC_H */
Node * ParseFuncOrColumn(ParseState *pstate, List *funcname, List *fargs, Node *last_srf, FuncCall *fn, bool proc_call, int location)
Definition: parse_func.c:73
void make_fn_arguments(ParseState *pstate, List *fargs, Oid *actual_arg_types, Oid *declared_arg_types)
Definition: parse_func.c:1755
int func_match_argtypes(int nargs, Oid *input_typeids, FuncCandidateList raw_candidates, FuncCandidateList *candidates)
Definition: parse_func.c:840
Definition: nodes.h:517
unsigned int Oid
Definition: postgres_ext.h:31
const char * funcname_signature_string(const char *funcname, int nargs, List *argnames, const Oid *argtypes)
Definition: parse_func.c:1916
const char * func_signature_string(List *funcname, int nargs, List *argnames, const Oid *argtypes)
Definition: parse_func.c:1953
Oid LookupFuncWithArgs(ObjectType objtype, ObjectWithArgs *func, bool noError)
Definition: parse_func.c:2041
FuncDetailCode
Definition: parse_func.h:22
ObjectType
Definition: parsenodes.h:1634
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)
Definition: parse_func.c:1312
static void * fn(void *arg)
FuncCandidateList func_select_candidate(int nargs, Oid *input_typeids, FuncCandidateList candidates)
Definition: parse_func.c:925
Oid LookupFuncName(List *funcname, int nargs, const Oid *argtypes, bool noError)
Definition: parse_func.c:1974
void check_srf_call_placement(ParseState *pstate, Node *last_srf, int location)
Definition: parse_func.c:2178
Definition: pg_list.h:45