Add lower pattern index and tsvector index

Author: brianbolt

src/main/resources/db/migration/postgres/V2.4.2.2__ddict_value_label_text_search_index.sql

@@ -4,10 +4,24 @@ BEGIN
         SELECT 1
         FROM   pg_class c
         JOIN   pg_namespace n ON n.oid = c.relnamespace
-        WHERE  c.relname = 'ddict_value_labeltext_web_idx'
+        WHERE  c.relname = 'ddict_value_labeltext_tsvector_idx'
     )
     THEN
-        CREATE INDEX ddict_value_labeltext_web_idx ON ddict_value USING GIN (to_tsvector('english', label_text));
+        CREATE INDEX ddict_value_labeltext_tsvector_idx ON ddict_value USING GIN (to_tsvector('english', label_text));
+    END IF;
+END
+$$;
+
+DO $$
+BEGIN
+    IF NOT EXISTS (
+        SELECT 1
+        FROM   pg_class c
+        JOIN   pg_namespace n ON n.oid = c.relnamespace
+        WHERE  c.relname = 'idx_ddictvalue_labeltext_lower_pattern'
+    )
+    THEN
+        CREATE INDEX idx_ddictvalue_labeltext_lower_pattern ON ddict_value(lower(label_text) varchar_pattern_ops);
     END IF;
 END
 $$;