Manual:$wgBufferSQLResults

This feature was removed completely in version 1.4.0.

Database settings: $wgBufferSQLResults
Use buffered queries by default
Introduced in version:	1.3.0
Removed in version:	1.4.0 (r7517)
Allowed values:	(boolean)
Default value:	`true`
Other settings: Alphabetical \| By function

Details

Use buffered queries by default.