Enhancements

Core

1. ISSUE #475 Support CREATE INDEX
2. ISSUE #525 Support DROP INDEX

Bug Fixes

Core

1. ISSUE #521 ShardingProperties is invalid in YAML configuration
2. ISSUE #529 Table name capitalization cannot be queried
3. ISSUE #541 IS NOT NULL parse error
4. ISSUE #557 When GROUP BY and ORDER BY aliases are inconsistent, stream merging should be used
5. ISSUE #559 Support parsing numbers beginning with minus and decimal (e.g. -.12)
6. ISSUE #567 Add escape char for derived columns or alias when using MySQL

Sharding-JDBC

1. ISSUE #520 Exception is no longer DuplicateKeyException when the unique key conflict