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Add the ability to create indexes 'concurrently', that is, without

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blocking concurrent writes to the table.  Greg Stark, with a little help
from Tom Lane.
This commit is contained in:
Tom Lane
2006-08-25 04:06:58 +00:00
parent 8f91e2b607
commit e093dcdd28
34 changed files with 1025 additions and 138 deletions
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14
src/backend/optimizer/util/plancat.c
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@@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/optimizer/util/plancat.c,v 1.124 2006/08/05 00:22:49 tgl Exp $
* $PostgreSQL: pgsql/src/backend/optimizer/util/plancat.c,v 1.125 2006/08/25 04:06:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -138,6 +138,18 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, RelOptInfo *rel)
indexRelation = index_open(indexoid, lmode);
index = indexRelation->rd_index;
/*
* Ignore invalid indexes, since they can't safely be used for
* queries. Note that this is OK because the data structure
* we are constructing is only used by the planner --- the
* executor still needs to insert into "invalid" indexes!
*/
if (!index->indisvalid)
{
index_close(indexRelation, NoLock);
continue;
}
info = makeNode(IndexOptInfo);
info->indexoid = index->indexrelid;