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Logical replication

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- Add PUBLICATION catalogs and DDL
- Add SUBSCRIPTION catalog and DDL
- Define logical replication protocol and output plugin
- Add logical replication workers

From: Petr Jelinek <petr@2ndquadrant.com>
Reviewed-by: Steve Singer <steve@ssinger.info>
Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Erik Rijkers <er@xs4all.nl>
Reviewed-by: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
This commit is contained in:
Peter Eisentraut
2017-01-19 12:00:00 -05:00
parent ba61a04bc7
commit 665d1fad99
119 changed files with 13354 additions and 95 deletions
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35
src/backend/utils/cache/inval.c vendored
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@ -375,11 +375,16 @@ AddRelcacheInvalidationMessage(InvalidationListHeader *hdr,
{
SharedInvalidationMessage msg;
/* Don't add a duplicate item */
/* We assume dbId need not be checked because it will never change */
/*
* Don't add a duplicate item.
* We assume dbId need not be checked because it will never change.
* InvalidOid for relId means all relations so we don't need to add
* individual ones when it is present.
*/
ProcessMessageList(hdr->rclist,
if (msg->rc.id == SHAREDINVALRELCACHE_ID &&
msg->rc.relId == relId)
(msg->rc.relId == relId ||
msg->rc.relId == InvalidOid))
return);
/* OK, add the item */
@ -509,8 +514,10 @@ RegisterRelcacheInvalidation(Oid dbId, Oid relId)
/*
* If the relation being invalidated is one of those cached in the local
* relcache init file, mark that we need to zap that file at commit.
* Same is true when we are invalidating whole relcache.
*/
if (OidIsValid(dbId) && RelationIdIsInInitFile(relId))
if (OidIsValid(dbId) &&
(RelationIdIsInInitFile(relId) || relId == InvalidOid))
transInvalInfo->RelcacheInitFileInval = true;
}
@ -565,7 +572,10 @@ LocalExecuteInvalidationMessage(SharedInvalidationMessage *msg)
{
int i;
RelationCacheInvalidateEntry(msg->rc.relId);
if (msg->rc.relId == InvalidOid)
RelationCacheInvalidate();
else
RelationCacheInvalidateEntry(msg->rc.relId);
for (i = 0; i < relcache_callback_count; i++)
{
@ -1226,6 +1236,21 @@ CacheInvalidateRelcache(Relation relation)
RegisterRelcacheInvalidation(databaseId, relationId);
}
/*
* CacheInvalidateRelcacheAll
* Register invalidation of the whole relcache at the end of command.
*
* This is used by alter publication as changes in publications may affect
* large number of tables.
*/
void
CacheInvalidateRelcacheAll(void)
{
PrepareInvalidationState();
RegisterRelcacheInvalidation(InvalidOid, InvalidOid);
}
/*
* CacheInvalidateRelcacheByTuple
* As above, but relation is identified by passing its pg_class tuple.