postgresql/src/include/parser/parse_func.h
PostgreSQL Daemon 2ff501590b Tag appropriate files for rc3
Also performed an initial run through of upgrading our Copyright date to
extend to 2005 ... first run here was very simple ... change everything
where: grep 1996-2004 && the word 'Copyright' ... scanned through the
generated list with 'less' first, and after, to make sure that I only
picked up the right entries ...
2004-12-31 22:04:05 +00:00

81 lines
2.5 KiB
C

/*-------------------------------------------------------------------------
*
* parse_func.h
*
*
*
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/parser/parse_func.h,v 1.53 2004/12/31 22:03:38 pgsql 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_COERCION /* it's a type coercion request */
} FuncDetailCode;
extern Node *ParseFuncOrColumn(ParseState *pstate,
List *funcname, List *fargs,
bool agg_star, bool agg_distinct, bool is_column);
extern FuncDetailCode func_get_detail(List *funcname, List *fargs,
int nargs, Oid *argtypes,
Oid *funcid, Oid *rettype,
bool *retset, Oid **true_typeids);
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 bool typeInheritsFrom(Oid subclassTypeId, Oid superclassTypeId);
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 find_aggregate_func(List *aggname, Oid basetype, bool noError);
extern Oid LookupFuncName(List *funcname, int nargs, const Oid *argtypes,
bool noError);
extern Oid LookupFuncNameTypeNames(List *funcname, List *argtypes,
bool noError);
#endif /* PARSE_FUNC_H */