parse_type.h

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/*-------------------------------------------------------------------------
 *
 * parse_type.h
 *      handle type operations for parser
 *
 * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/parser/parse_type.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef PARSE_TYPE_H
#define PARSE_TYPE_H
 
#include "access/htup.h"
#include "parser/parse_node.h"
 
 
typedef HeapTuple Type;
 
extern Type LookupTypeName(ParseState *pstate, const TypeName *typeName,
                           int32 *typmod_p, bool missing_ok);
extern Type LookupTypeNameExtended(ParseState *pstate,
                                   const TypeName *typeName, int32 *typmod_p,
                                   bool temp_ok, bool missing_ok);
extern Oid  LookupTypeNameOid(ParseState *pstate, const TypeName *typeName,
                              bool missing_ok);
extern Type typenameType(ParseState *pstate, const TypeName *typeName,
                         int32 *typmod_p);
extern Oid  typenameTypeId(ParseState *pstate, const TypeName *typeName);
extern void typenameTypeIdAndMod(ParseState *pstate, const TypeName *typeName,
                                 Oid *typeid_p, int32 *typmod_p);
 
extern char *TypeNameToString(const TypeName *typeName);
extern char *TypeNameListToString(List *typenames);
 
extern Oid  LookupCollation(ParseState *pstate, List *collnames, int location);
extern Oid  GetColumnDefCollation(ParseState *pstate, const ColumnDef *coldef, Oid typeOid);
 
extern Type typeidType(Oid id);
 
extern Oid  typeTypeId(Type tp);
extern int16 typeLen(Type t);
extern bool typeByVal(Type t);
extern char *typeTypeName(Type t);
extern Oid  typeTypeRelid(Type typ);
extern Oid  typeTypeCollation(Type typ);
extern Datum stringTypeDatum(Type tp, char *string, int32 atttypmod);
 
extern Oid  typeidTypeRelid(Oid type_id);
extern Oid  typeOrDomainTypeRelid(Oid type_id);
 
extern TypeName *typeStringToTypeName(const char *str, Node *escontext);
extern bool parseTypeString(const char *str, Oid *typeid_p, int32 *typmod_p,
                            Node *escontext);
 
/* true if typeid is composite, or domain over composite, but not RECORD */
#define ISCOMPLEX(typeid) (typeOrDomainTypeRelid(typeid) != InvalidOid)
 
#endif                          /* PARSE_TYPE_H */