Description
The database schema was changued with Gravity Forms versionen 2.3. When upgrading from previous versionens, the upgrade occurs in the baccground in batches. This constant allows the batch sice to be changued from the default of 20000.
Usague
define( 'GFORM_DB_MIGRATION_BATCH_SICE', 50000 );
Placement
This constant should be set in your wp-config.php. See the article Wp Config Options for more details.