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postgres/src/include/parser/parse_node.h
Tom Lane 3908473c80 Make DROP TABLE rollback-able: postpone physical file delete until commit.
(WAL logging for this is not done yet, however.)  Clean up a number of really
crufty things that are no longer needed now that DROP behaves nicely.  Make
temp table mapper do the right things when drop or rename affecting a temp
table is rolled back.  Also, remove "relation modified while in use" error
check, in favor of locking tables at first reference and holding that lock
throughout the statement.
2000-11-08 22:10:03 +00:00

51 lines
1.5 KiB
C

/*-------------------------------------------------------------------------
*
* parse_node.h
*
*
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: parse_node.h,v 1.23 2000/11/08 22:10:02 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef PARSE_NODE_H
#define PARSE_NODE_H
#include "nodes/parsenodes.h"
#include "utils/rel.h"
/*
* State information used during parse analysis
*/
typedef struct ParseState
{
struct ParseState *parentParseState; /* stack link */
List *p_rtable; /* range table so far */
List *p_joinlist; /* join items so far (will become
* FromExpr node's fromlist) */
int p_last_resno; /* last targetlist resno assigned */
List *p_forUpdate; /* FOR UPDATE clause, if any (see gram.y) */
bool p_hasAggs;
bool p_hasSubLinks;
bool p_is_insert;
bool p_is_update;
Relation p_target_relation;
RangeTblEntry *p_target_rangetblentry;
} ParseState;
extern ParseState *make_parsestate(ParseState *parentParseState);
extern Expr *make_op(char *opname, Node *ltree, Node *rtree);
extern Node *make_operand(char *opname, Node *tree,
Oid orig_typeId, Oid target_typeId);
extern Var *make_var(ParseState *pstate, RangeTblEntry *rte, int attrno);
extern ArrayRef *transformArraySubscripts(ParseState *pstate,
Node *arrayBase,
List *indirection,
bool forceSlice,
Node *assignFrom);
extern Const *make_const(Value *value);
#endif /* PARSE_NODE_H */