Add testing suite #7
Description
The complex part of logic should be tested with real cases (data and schemes). It is required to develop testing environments for:
- Compiler
- Tests for each case (input, types, enums ...) and directive usage
- Test for extended
- Planer
- pg, http and duckdb data sources (with testcontainers)
- function call
- data query (select, select unique, aggregation, join, function call)
- data mutation