src/include/rewrite/prs2lock.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * prs2lock.h
   4  *        data structures for POSTGRES Rule System II (rewrite rules only)
   5  *
   6  * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  * $PostgreSQL$
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13 #ifndef PRS2LOCK_H
  14 #define PRS2LOCK_H
  15
  16 #include "access/attnum.h"
  17 #include "nodes/pg_list.h"
  18
  19 /*
  20  * RewriteRule -
  21  *        holds a info for a rewrite rule
  22  *
  23  */
  24 typedef struct RewriteRule
  25 {
  26         Oid                     ruleId;
  27         CmdType         event;
  28         AttrNumber      attrno;
  29         Node       *qual;
  30         List       *actions;
  31         char            enabled;
  32         bool            isInstead;
  33 } RewriteRule;
  34
  35 /*
  36  * RuleLock -
  37  *        all rules that apply to a particular relation. Even though we only
  38  *        have the rewrite rule system left and these are not really "locks",
  39  *        the name is kept for historical reasons.
  40  */
  41 typedef struct RuleLock
  42 {
  43         int                     numLocks;
  44         RewriteRule **rules;
  45 } RuleLock;
  46
  47 #endif   /* REWRITE_H */