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sys.sp_xtp_checkpoint_force_garbage_collection (Transact-SQL)

SQL Server 2014

Marks source files used in the merge operation with the log sequence number (LSN) after which they are not needed and can be garbage collected. Also, it moves the files whose associated LSN is lower than the log truncation point to filestream garbage collection.

Topic link icon Transact-SQL Syntax Conventions

Applies to: SQL Server (SQL Server 2014 through current version).

sys.sp_xtp_checkpoint_force_garbage_collection [[ @dbname=database_name]

database_name

The database to run garbage collection on. The default is the current database.

0 for success. Nonzero for failure.

A returned row contains the following information:

Column

Description

num_collected_items

Indicates the number of files that have been moved to filestream garbage collection. These are the files whose log sequence number (LSN) is less than the LSN of log truncation point

num_marked_for_collection_items

Indicates the number of data/delta files whose LSN has been updated with the log blockID of the end-of-log LSN.

last_collected_xact_seqno

Returns the last corresponding LSN up to which the files have been moved to filestream garbage collection.

Requires database owner permission.

exec [sys].[sp_xtp_checkpoint_force_garbage_collection] hkdb1

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