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[dbist]

please see comments in the cockroach issue: cockroachdb/cockroach#46481

The problem seems to be this if-statement in ipython-sql:

        if first_word.startswith('\\') and 'postgres' in str(conn.dialect):
            if not PGSpecial:
                raise ImportError('pgspecial not installed')
            pgspecial = PGSpecial()

ipython-sql/src/sql/run.py

Line 354 in ad79dd7

if first_word.startswith('\\') and 'postgres' in str(conn.dialect):

It will only use pgspecial if postgres is part of the connection string. But in order to connect to CockroachDB, the connection string must begin with cockroachdb.