Failing SQL Feature

ClickHouse supports the C-style ternary conditional operator cond ? then : else as an alias for the if(cond, then, else) function. For example, x > 0 ? 'y' : 'n' returns 'y' when x > 0 and 'n' otherwise. JSQLParser fails to parse this operator when used as a select item.

See the ClickHouse docs:
https://clickhouse.com/docs/en/sql-reference/functions/conditional-functions

SQL Example

CREATE TABLE t (x Int32) ENGINE = MergeTree ORDER BY x;

INSERT INTO t VALUES (1);

SELECT x > 0 ? 'y' : 'n' FROM t;

Parsing error

ParseException: Encountered: "?" / "?", at line 1, column 14, in lexical state DEFAULT.