prs2lock.h

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/*-------------------------------------------------------------------------
 *
 * prs2lock.h
 *    data structures for POSTGRES Rule System II (rewrite rules only)
 *
 * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/rewrite/prs2lock.h
 *
 *-------------------------------------------------------------------------
 */
#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;
    char        enabled;
    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 */