71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/*-------------------------------------------------------------------------
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*
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* parse_func.h
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*
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*
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*
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* Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/parser/parse_func.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PARSER_FUNC_H
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#define PARSER_FUNC_H
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#include "catalog/namespace.h"
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#include "parser/parse_node.h"
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/* Result codes for func_get_detail */
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typedef enum
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{
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FUNCDETAIL_NOTFOUND, /* no matching function */
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FUNCDETAIL_MULTIPLE, /* too many matching functions */
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FUNCDETAIL_NORMAL, /* found a matching regular function */
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FUNCDETAIL_AGGREGATE, /* found a matching aggregate function */
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FUNCDETAIL_WINDOWFUNC, /* found a matching window function */
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FUNCDETAIL_COERCION /* it's a type coercion request */
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} FuncDetailCode;
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extern Node *ParseFuncOrColumn(ParseState *pstate, List *funcname, List *fargs,
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FuncCall *fn, int location);
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extern FuncDetailCode func_get_detail(List *funcname,
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List *fargs, List *fargnames,
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int nargs, Oid *argtypes,
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bool expand_variadic, bool expand_defaults,
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Oid *funcid, Oid *rettype,
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bool *retset, int *nvargs, Oid *vatype,
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Oid **true_typeids, List **argdefaults);
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extern int func_match_argtypes(int nargs,
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Oid *input_typeids,
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FuncCandidateList raw_candidates,
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FuncCandidateList *candidates);
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extern FuncCandidateList func_select_candidate(int nargs,
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Oid *input_typeids,
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FuncCandidateList candidates);
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extern void make_fn_arguments(ParseState *pstate,
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List *fargs,
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Oid *actual_arg_types,
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Oid *declared_arg_types);
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extern const char *funcname_signature_string(const char *funcname, int nargs,
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List *argnames, const Oid *argtypes);
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extern const char *func_signature_string(List *funcname, int nargs,
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List *argnames, const Oid *argtypes);
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extern Oid LookupFuncName(List *funcname, int nargs, const Oid *argtypes,
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bool noError);
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extern Oid LookupFuncNameTypeNames(List *funcname, List *argtypes,
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bool noError);
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extern Oid LookupAggNameTypeNames(List *aggname, List *argtypes,
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bool noError);
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#endif /* PARSE_FUNC_H */
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