openGauss 不支持的 SQL 清单如下：
| SQL |
|---|
| CREATE type avg_state AS (total bigint, count bigint); |
| CREATE AGGREGATE my_avg(int4) (stype = avg_state, sfunc = avg_transfn, finalfunc = avg_finalfn) |
| CREATE TABLE agg_data_2k AS SELECT g FROM generate_series(0, 1999) g; |
| CREATE SCHEMA alt_nsp1; |
| ALTER AGGREGATE alt_agg3(int) OWNER TO regress_alter_generic_user2; |
| CREATE CONVERSION alt_conv1 FOR ‘LATIN1’ TO ‘UTF8’ FROM iso8859_1_to_utf8; |
| CREATE FOREIGN DATA WRAPPER alt_fdw1 |
| CREATE SERVER alt_fserv1 FOREIGN DATA WRAPPER alt_fdw1 |
| CREATE LANGUAGE alt_lang1 HANDLER plpgsql_call_handler |
| CREATE STATISTICS alt_stat1 ON a, b FROM alt_regress_1 |
| CREATE TEXT SEARCH DICTIONARY alt_ts_dict1 (template=simple) |
| CREATE RULE def_view_test_ins AS ON INSERT TO def_view_test DO INSTEAD INSERT INTO def_test SELECT new.* |
| ALTER TABLE alterlock SET (toast.autovacuum_enabled = off) |
| CREATE PUBLICATION pub1 FOR TABLE alter1.t1, ALL TABLES IN SCHEMA alter2 |