PostgreSQL client interface errors

What was going on
Issue questdb/questdb#5202 (closed, 21 comments): ### To reproduce To create and init a sample table: ```sql CREATE TABLE bugtest( timestamp TIMESTAMP, symbol SYMBOL, price DOUBLE, amount DOUBLE ) TIMESTAMP(timestamp) PARTITION BY DAY; INSERT INTO bugtest VALUES ('2021-10-05T11:31:35.878Z', 'AAPL', 245, 123.4), ('2021-10-05T12:31:35.878Z', 'AAPL', 245, 123.3), ('2021-10-05T13:31:35.878Z', 'AAPL', 250, 123.1), ('2021-10-05T14:31:35.878Z', 'AAPL', 250, 123.0); ``` The problem appears sometime, randomly, when query from a client using PostgreSQL driver (exposed at port 8812 in the docker image).

The fix
[mtopolnik (contributor)]: The PGWire corruption in QuestDB 8.2.0 happens when text and binary protocol clients (e.g. JDBC and psql) connect concurrently. Workaround: pg.legacy.mode.enabled=true. The reporter confirmed no more issues after upgrading to 8.2.1.