Java 11

[marat-gainullin]

• Async API refatored to use CompletableFutures and RxJava dependency eliminated
• Real PreparedStatements reusing through connection pool introduced
• Parse|Bind|Describe|Execute|Close|Sync message chain splitted into Parse|Sync and Bind|Describe|Execute|Sync and Close|Sync chains to reuse PreparedStatement instances
• Strings reading refactored to be able to read strings of unlimited size
• Connection pool refactored to use of clean synchronization technics
• Performance improved about 25% according to original test plan from PerformanceTest
• Some errors fixed
• PgRow refactored
• ArrayConversions refactored to be able to use Postgres type bytea[]

[cretz]

That's a lot of work, good job. You basically did what I did with https://github.com/cretz/pgnio after finding bugs here and realizing it was basically abandoned.

[marat-gainullin]

This work is intended to fill the gap in async database connectivity for my other project - Septima https://github.com/marat-gainullin/septima

Your project is cool. Especially I like support of COPY protocol. We could combine our effort to make similar work for other DBMSes.

[marat-gainullin]

@alaisi Do you consider to add more review comments or improvement proposals?

[alaisi]

Reviewed and merged, thanks for the effort!