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845a6c3acc
type for runtime constraint checks, instead of misusing the parse-time Constraint node for the purpose. Fix some damage introduced into type coercion logic; in particular ensure that a coerced expression tree will read out the correct result type when inspected (patch had broken some RelabelType cases). Enforce domain NOT NULL constraints against columns that are omitted from an INSERT.
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*-------------------------------------------------------------------------
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*
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* parse_coerce.h
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*
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* Routines for type coercion.
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*
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* Portions Copyright (c) 1996-2002, 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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* $Id: parse_coerce.h,v 1.45 2002/08/31 22:10:47 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PARSE_COERCE_H
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#define PARSE_COERCE_H
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#include "catalog/pg_type.h"
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#include "parser/parse_node.h"
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typedef enum CATEGORY
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{
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INVALID_TYPE,
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UNKNOWN_TYPE,
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BOOLEAN_TYPE,
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STRING_TYPE,
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BITSTRING_TYPE,
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NUMERIC_TYPE,
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DATETIME_TYPE,
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TIMESPAN_TYPE,
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GEOMETRIC_TYPE,
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NETWORK_TYPE,
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USER_TYPE,
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MIXED_TYPE
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} CATEGORY;
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extern bool IsBinaryCompatible(Oid type1, Oid type2);
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extern bool IsPreferredType(CATEGORY category, Oid type);
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extern CATEGORY TypeCategory(Oid type);
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extern bool can_coerce_type(int nargs, Oid *input_typeids, Oid *func_typeids,
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bool isExplicit);
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extern Node *coerce_type(ParseState *pstate, Node *node, Oid inputTypeId,
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Oid targetTypeId, int32 atttypmod, bool isExplicit);
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extern Node *coerce_type_typmod(ParseState *pstate, Node *node,
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Oid targetTypeId, int32 atttypmod);
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extern Node *coerce_type_constraints(ParseState *pstate, Node *arg,
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Oid typeId, bool applyTypmod);
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extern Node *coerce_to_boolean(Node *node, const char *constructName);
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extern Oid select_common_type(List *typeids, const char *context);
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extern Node *coerce_to_common_type(ParseState *pstate, Node *node,
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Oid targetTypeId,
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const char *context);
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#endif /* PARSE_COERCE_H */
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