Manual:$wgDeleteRevisionsBatchSize

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User rights, access control and monitoring: $wgDeleteRevisionsBatchSize
Page deletions with > this number of revisions will use the job queue.
Introduced in version:1.32.0 (Gerrit change 456035; git #ca9f1dab)
Removed in version:still in use
Allowed values:(integer)
Default value:1000