Issue #39 | ClickhouseTable: integration tests

[IceKhan13]

Summary

Integration tests for Clickhouse table

Details

1. Integration tests for Clickhouse
2. Separate folder for functional and integration tests
3. This PR bring new dependency to project which is https://ibis-project.org/. It supports ~20 different backends, which will give ability to expand datarepo tables to more engines like spark, druid, postgres, etc. Moreover it has nice SQL query builder which might cover needs for Use sql builder to construct queries #9 (I can cover SQL builder and more backends in follow up PRs). And it's pretty lightweight.

P.S.
Connectionx was also pain to work with as polars + connectionx + clickhouse has a lot of conflicting dependencies (and it looks like it was working through mysql anyway).

[houqp]

@IceKhan13 is this PR ready for review?

[IceKhan13]

@houqp yes, it is!
Sorry, I do not have rights in this repo to request reviews :)

[Copilot]

Pull Request Overview

This PR introduces integration tests for ClickHouse table functionality and reorganizes the test structure. The implementation adds a new dependency (ibis-framework) to replace connectionx for database connectivity, which provides better compatibility and broader backend support.

• Adds comprehensive integration tests for ClickHouseTable with Docker Compose setup
• Reorganizes test structure separating functional and integration tests
• Replaces polars.read_database_uri with ibis for ClickHouse connectivity

Reviewed Changes

Copilot reviewed 8 out of 19 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
test/integration/test_clickhouse_table_int.py	New integration test suite with comprehensive ClickHouse table testing scenarios
test/integration/resources/docker-compose.yml	Docker Compose configuration for ClickHouse test environment
test/functional/test_core.py	Updated import paths to reflect new test structure
test/functional/tables/test_clickhouse_table.py	Updated mocks to use ibis instead of polars.read_database_uri
test/functional/roapi/test_roapi.py	Updated import paths for new test structure
src/datarepo/core/tables/clickhouse_table.py	Replaced polars.read_database_uri with ibis.connect for database queries
pyproject.toml	Added ibis-framework and clickhouse-driver dependencies
.github/workflows/build_and_publish.yml	Added integration test workflow with Docker Compose setup

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