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db_include/rewrite/prs2lock.h

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+/*-------------------------------------------------------------------------
+ *
+ * prs2lock.h
+ *	  data structures for POSTGRES Rule System II (rewrite rules only)
+ *
+ * Portions Copyright (c) 1996-2021, 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 an info for a rewrite rule
+ *
+ */
+typedef struct RewriteRule
+{
+	Oid			ruleId;
+	CmdType		event;
+	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							/* PRS2LOCK_H */