## 2020-05-18 Version 1.8.0.0

### Features
#### Elasticsearch Compatibility
* Feature [#467](https://github.com/opendistro-for-elasticsearch/sql/issues/467): Elasticsearch 7.7.0 compatibility

### Enhancements
#### SQL Features
* Enhancement [#470](https://github.com/opendistro-for-elasticsearch/sql/pull/470): Add the field type conflict check in semantic check (issue: [#348](https://github.com/opendistro-for-elasticsearch/sql/issues/348))

### Bugfixes
* Bugfix [#462](https://github.com/opendistro-for-elasticsearch/sql/pull/462): Correct the column when SELECT function as field (issue: [#461](https://github.com/opendistro-for-elasticsearch/sql/issues/461))