maintenance/ibm_db2/patch-change_tag-indexes.sql

   1 CREATE UNIQUE INDEX change_tag_rc_tag ON change_tag (ct_rc_id,ct_tag);
   2 CREATE UNIQUE INDEX change_tag_log_tag ON change_tag (ct_log_id,ct_tag);
   3 CREATE UNIQUE INDEX change_tag_rev_tag ON change_tag (ct_rev_id,ct_tag);
   4 -- Covering index, so we can pull all the info only out of the index.
   5 CREATE INDEX change_tag_tag_id ON change_tag (ct_tag,ct_rc_id,ct_rev_id,ct_log_id);