ALTER TABLE no.such.table
    ADD COLUMN b INT;
---


ALTER TABLE tests.data.dir
    ADD COLUMN b INT;
---


ALTER TABLE tests.data.dates
    ADD COLUMN b JSONB;
---


ALTER TABLE tests.data.dates
    ADD PRIMARY KEY (date_1);
---


ALTER TABLE tests.data.dates
    ADD COLUMN aa INT;
---


ALTER TABLE tests.data.dates
    ADD COLUMN ts INT;
---



ALTER TABLE tests.data.dates
    DROP COLUMN sgfds;
---


ALTER TABLE tests.data.dates
    DROP COLUMN ts RESTRICT;
---
