Applies To: SQL Server 2014, SQL Server 2016 Preview
Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).
Performs a manual cleanup of metadata in the MSmerge_genhistory, MSmerge_contents, MSmerge_tombstone, MSmerge_past_partition_mappings, and MSmerge_current_partition_mappings system tables. This stored procedure is executed at each Publisher and Subscriber in the topology.
sp_mergemetadataretentioncleanup [ [ @num_genhistory_rows = ] num_genhistory_rows OUTPUT ] [ , [ @num_contents_rows = ] num_contents_rows OUTPUT ] [ , [ @num_tombstone_rows = ] num_tombstone_rows OUTPUT ] [ , [ @aggressive_cleanup_only = ] aggressive_cleanup_only ]
If there are multiple publications on a database, and any one of those publications uses an infinite publication retention period, running sp_mergemetadataretentioncleanup does not clean up the merge replication change tracking metadata for the database. For this reason, use infinite publication retention with caution. To determine if a publication has an infinite retention period, execute sp_helpmergepublication (Transact-SQL) at the Publisher and note any publications in the result set with a value of 0 for retention.