Goals

1. Non-blocking scans in Tarantool (cancel long lasting queries)
2. DDL
3. DML (delete, update)
4. Documentation

From Q1:

1. "Not" operator

From Q2:

1. Stress tests for Picodata SQL
2. Cost-based join optimizations
3. Tables with non-journaled metadata in Tarantool

Results

Ok:

1. Non-blocking scans in Tarantool (cancel long lasting queries)
2. DDL
3. DML (delete, update)
4. "Not" operator

Partial:

1. Documentation - we failed to cover all the topics that were planned, but anyway - the situation really improved.
2. Stress tests for Picodata SQL - the picostress tool is almost ready, but it seems to be finished in the Q4

Ignored:

1. Cost-based join optimizations - we decided to freeze this work (we have lot's of other problems to be solved first)
2. Tables with non-journaled metadata in Tarantool - the MR into the core and module was merged too late, so move it to Q4