PostgreSQL/src/include/parser/parse_expr.h
Tom Lane b0422b215c Preliminary code review for domain CHECK constraints patch: add documentation,
make VALUE a non-reserved word again, use less invasive method of passing
ConstraintTestValue into transformExpr, fix problems with nested constraint
testing, do correct thing with NULL result from a constraint expression,
remove memory leak.  Domain checks still need much more work if we are going
to allow ALTER DOMAIN, however.
2002-12-12 20:35:16 +00:00

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/*-------------------------------------------------------------------------
*
* parse_expr.h
*
*
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: parse_expr.h,v 1.30 2002/12/12 20:35:16 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef PARSE_EXPR_H
#define PARSE_EXPR_H
#include "parser/parse_node.h"
/* GUC parameters */
extern int max_expr_depth;
extern bool Transform_null_equals;
extern Node *transformExpr(ParseState *pstate, Node *expr);
extern Oid exprType(Node *expr);
extern int32 exprTypmod(Node *expr);
extern bool exprIsLengthCoercion(Node *expr, int32 *coercedTypmod);
extern void parse_expr_init(void);
#endif /* PARSE_EXPR_H */