Release 0.111

General

• Add histogram() function.

• Optimize CASE expressions on a constant.

• Add basic support for IF NOT EXISTS for CREATE TABLE.

• Semi-joins are hash-partitioned if distributed_join is turned on.

• Add support for partial cast from JSON. For example, json can be cast to array(json), map(varchar, json), etc.

• Add implicit coercions for UNION.

• Expose query stats in the JDBC driver ResultSet.