greenplumn evtcache 源码
greenplumn evtcache 代码
文件路径：/src/include/utils/evtcache.h
/*-------------------------------------------------------------------------
*
* evtcache.h
* Special-purpose cache for event trigger data.
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* src/include/utils/evtcache.h
*
*-------------------------------------------------------------------------
*/
#ifndef EVTCACHE_H
#define EVTCACHE_H
#include "nodes/pg_list.h"
typedef enum
{
EVT_DDLCommandStart,
EVT_DDLCommandEnd,
EVT_SQLDrop,
EVT_TableRewrite
} EventTriggerEvent;
typedef struct
{
Oid fnoid; /* function to be called */
char enabled; /* as SESSION_REPLICATION_ROLE_* */
int ntags; /* number of command tags */
char **tag; /* command tags in SORTED order */
} EventTriggerCacheItem;
extern List *EventCacheLookup(EventTriggerEvent event);
#endif /* EVTCACHE_H */
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