v.21.11Bug Fixes
Fix Multi-Column Queries to External Databases in ClickHouse
Fix queries to external databases (i.e. MySQL) with multiple columns in IN ( i.e. (k,v) IN ((1, 2)) ). #28888 (Azat Khuzhin).Fix queries to external databases (i.e. MySQL) with multiple columns in IN ( i.e. (k,v) IN ((1, 2)) ). #28888 (Azat Khuzhin).