v0.19.0

Breaking changes

• The way commits are iterated now changed. The new functionality is similar to git log --all command. It is ~3 times faster, but we are ignoring orphan commits (as git does).
• 0.18.0 indexes are not compatible with this new version.

Bugfixes

• Fix KILL QUERY command
• Regression bug: Panic on go-git cache #711
• Fix checksum on indexes src-d/go-mysql-server#612
• SHOW WARNINGS doesn't clean warnings from one query to another src-d/go-mysql-server#600
• REGEXP invalid patterns doesn't break now src-d/go-mysql-server#606
• Improved function parameter errors src-d/go-mysql-server#591
• Problem combining some OR filters with AND filters in non-squashed tables.
• Solved a problem causing subqueries to cancel the main query.

New features

• Update Bblfsh and Enry dependencies #707
• cli: add --log-level option
• Adds a new optional feature behind EXPERIMENTAL_IN_MEMORY_JOIN environment variable to activate in-memory inner joins, which are faster but less memory efficient.
• Index checksum. If the index does not match the previous checksum, they're not used. That is, if the repositories changed. NOTE: indexes created prior to this version will not work.
• e2e tests against built binary.

Documentation

• Add security section

Performance improvements

• Perf: Traverse commit history instead of reading the packfile