prs2lock.h
上传用户:blenddy
上传日期:2007-01-07
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文件大小:1k
- /*-------------------------------------------------------------------------
- *
- * prs2lock.h
- * data structures for POSTGRES Rule System II (rewrite rules only)
- *
- * Copyright (c) 1994, Regents of the University of California
- *
- * $Id: prs2lock.h,v 1.9 1999/02/13 23:21:59 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
- #ifndef PRS2LOCK_H
- #define PRS2LOCK_H
- #include <access/attnum.h>
- #include <nodes/pg_list.h>
- /*
- * RewriteRule -
- * holds a info for a rewrite rule
- *
- */
- typedef struct RewriteRule
- {
- Oid ruleId;
- CmdType event;
- AttrNumber attrno;
- Node *qual;
- List *actions;
- bool isInstead;
- } RewriteRule;
- /*
- * RuleLock -
- * all rules that apply to a particular relation. Even though we only
- * have the rewrite rule system left and these are not really "locks",
- * the name is kept for historical reasons.
- */
- typedef struct RuleLock
- {
- int numLocks;
- RewriteRule **rules;
- } RuleLock;
- #endif /* REWRITE_H */