-CREATE UNIQUE INDEX &mw_prefix.change_tag_u01 ON &mw_prefix.change_tag (ct_rc_id,ct_tag);
-CREATE UNIQUE INDEX &mw_prefix.change_tag_u02 ON &mw_prefix.change_tag (ct_log_id,ct_tag);
-CREATE UNIQUE INDEX &mw_prefix.change_tag_u03 ON &mw_prefix.change_tag (ct_rev_id,ct_tag);
+
+CREATE INDEX &mw_prefix.change_tag_i03 ON &mw_prefix.change_tag (ct_rc_id,ct_tag);
+CREATE INDEX &mw_prefix.change_tag_i04 ON &mw_prefix.change_tag (ct_log_id,ct_tag);
+CREATE INDEX &mw_prefix.change_tag_i05 ON &mw_prefix.change_tag (ct_rev_id,ct_tag);
+
+CREATE UNIQUE INDEX &mw_prefix.change_tag_u04 ON &mw_prefix.change_tag (ct_rc_id,ct_tag_id);
+CREATE UNIQUE INDEX &mw_prefix.change_tag_u05 ON &mw_prefix.change_tag (ct_log_id,ct_tag_id);
+CREATE UNIQUE INDEX &mw_prefix.change_tag_u06 ON &mw_prefix.change_tag (ct_rev_id,ct_tag_id);
+