Add the enum value 'ENSEMBL' to the external_db.type column (primarily for eFG).

sql/patch_52_53_b.sql

+# patch_52_53_b.sql
+#
+# title: update schema version
+#
+# description:
+# Add the enum value 'ENSEMBL' to the external_db.type column (primarily for eFG)
+
+ALTER TABLE external_db MODIFY type ENUM('ARRAY', 'ALT_TRANS', 'MISC', 'LIT', 'PRIMARY_DB_SYNONYM', 'ENSEMBL');
+
+# patch identifier
+INSERT INTO meta (species_id, meta_key, meta_value) VALUES (NULL, 'patch', 'patch_52_53_b.sql|external_db_type_enum');
+
+