mirror of
https://github.com/postgres/postgres.git
synced 2026-02-14 00:03:18 -05:00
0ada559187
find_inheritance_children() and find_all_inheritors(). I got annoyed that these are buried inside the planner but mostly used elsewhere. So, create a new file catalog/pg_inherits.c and put them there, along with a couple of other functions that search pg_inherits. The code that modifies pg_inherits is (still) in tablecmds.c --- it's kind of entangled with unrelated code that modifies pg_depend and other stuff, so pulling it out seemed like a bigger change than I wanted to make right now. But this file provides a natural home for it if anyone ever gets around to that. This commit just moves code around; it doesn't change anything, except I succumbed to the temptation to make a couple of trivial optimizations in typeInheritsFrom().
83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* parse_func.h
|
|
*
|
|
*
|
|
*
|
|
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
|
|
* Portions Copyright (c) 1994, Regents of the University of California
|
|
*
|
|
* $PostgreSQL: pgsql/src/include/parser/parse_func.h,v 1.65 2009/05/12 00:56:05 tgl Exp $
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
#ifndef PARSER_FUNC_H
|
|
#define PARSER_FUNC_H
|
|
|
|
#include "catalog/namespace.h"
|
|
#include "parser/parse_node.h"
|
|
|
|
|
|
/*
|
|
* This structure is used to explore the inheritance hierarchy above
|
|
* nodes in the type tree in order to disambiguate among polymorphic
|
|
* functions.
|
|
*/
|
|
typedef struct _InhPaths
|
|
{
|
|
int nsupers; /* number of superclasses */
|
|
Oid self; /* this class */
|
|
Oid *supervec; /* vector of superclasses */
|
|
} InhPaths;
|
|
|
|
/* 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_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,
|
|
bool agg_star, bool agg_distinct, bool func_variadic,
|
|
WindowDef *over, bool is_column, int location);
|
|
|
|
extern FuncDetailCode func_get_detail(List *funcname, List *fargs,
|
|
int nargs, Oid *argtypes,
|
|
bool expand_variadic, bool expand_defaults,
|
|
Oid *funcid, Oid *rettype,
|
|
bool *retset, int *nvargs, 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, const Oid *argtypes);
|
|
extern const char *func_signature_string(List *funcname,
|
|
int nargs, const Oid *argtypes);
|
|
|
|
extern Oid LookupFuncName(List *funcname, int nargs, const Oid *argtypes,
|
|
bool noError);
|
|
extern Oid LookupFuncNameTypeNames(List *funcname, List *argtypes,
|
|
bool noError);
|
|
extern Oid LookupAggNameTypeNames(List *aggname, List *argtypes,
|
|
bool noError);
|
|
|
|
#endif /* PARSE_FUNC_H */
|