greenplumn pg_rewrite 源码
greenplumn pg_rewrite 代码
文件路径：/src/include/catalog/pg_rewrite.h
/*-------------------------------------------------------------------------
*
* pg_rewrite.h
* definition of the "rewrite rule" system catalog (pg_rewrite)
*
* As of Postgres 7.3, the primary key for this table is <ev_class, rulename>
* --- ie, rule names are only unique among the rules of a given table.
*
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/catalog/pg_rewrite.h
*
* NOTES
* The Catalog.pm module reads this file and derives schema
* information.
*
*-------------------------------------------------------------------------
*/
#ifndef PG_REWRITE_H
#define PG_REWRITE_H
#include "catalog/genbki.h"
#include "catalog/pg_rewrite_d.h"
/* ----------------
* pg_rewrite definition. cpp turns this into
* typedef struct FormData_pg_rewrite
* ----------------
*/
CATALOG(pg_rewrite,2618,RewriteRelationId)
{
Oid oid; /* oid */
NameData rulename;
Oid ev_class;
char ev_type;
char ev_enabled;
bool is_instead;
#ifdef CATALOG_VARLEN /* variable-length fields start here */
pg_node_tree ev_qual BKI_FORCE_NOT_NULL;
pg_node_tree ev_action BKI_FORCE_NOT_NULL;
#endif
} FormData_pg_rewrite;
/* GPDB added foreign key definitions for gpcheckcat. */
FOREIGN_KEY(ev_class REFERENCES pg_class(oid));
/* ----------------
* Form_pg_rewrite corresponds to a pointer to a tuple with
* the format of pg_rewrite relation.
* ----------------
*/
typedef FormData_pg_rewrite *Form_pg_rewrite;
#endif /* PG_REWRITE_H */
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