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Merge pull request #2599 from citusdata/fix_fk_from_partition_to_reference 

Fix partitioned table operations involving foreign key to reference table
pull/2598/head
Murat Tuncer 2019-01-28 17:01:43 +03:00 committed by GitHub
parent 1f4f6ea041 cd5213abee
commit 913cac2391
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1 changed files with 20 additions and 0 deletions
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20
src/backend/distributed/commands/table.c
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@ -1185,6 +1185,26 @@ SetupExecutionModeForAlterTable(Oid relationId, AlterTableCmd *command)
{ {
executeSequentially = true; executeSequentially = true;
} }
/*
* Postgres performs additional selects when creating constraints
* on partitioned tables. We need to set execution mode to
* sequential for the select query so that ddl connections
* we open does not fail due to previous select.
*/
if (executeSequentially && PartitionedTable(relationId))
{
SetLocalMultiShardModifyModeToSequential();
}
}
}
else if (alterTableType == AT_DetachPartition)
{
/* check if there are foreign constraints to reference tables */
if (HasForeignKeyToReferenceTable(relationId))
{
executeSequentially = true;
SetLocalMultiShardModifyModeToSequential();
} }
} }