Drop unused history columns while upgrading

About this task

Note: If you set the yfs.apply.sql.manually property to Y in the <INSTALL_DIR>/Migration/9.3/buildmigration.properties file, you must manually apply the following DDLs before running the run-history-drop target and the run-transaction-drop target:
  • <INSTALL_DIR>/Migration/<previous version directory>/database/scripts/<dbtype>/history/drops.sql
  • <INSTALL_DIR>/Migration/<previous version directory>/database/scripts/<dbtype>/transaction/drops.sql
where <previous version directory> corresponds to the location of the previous version directory and <dbtype> corresponds to the database type (DB2 or Oracle).