[WIP] fix(cubesql): Make cube join check stricter #3068

Job	Run time
latest-tag-sha	19s
Build native Linux 20 x86_64-unknown-linux-gnu Python fallback	2m 40s
build	6m 15s
tests (20.x, athena-export-bucket-s3)	16m 38s
tests (20.x, bigquery-export-bucket-gcs)	8m 34s
tests (20.x, clickhouse)	5m 36s
tests (20.x, clickhouse-export-bucket-s3)	4m 58s
tests (20.x, databricks-jdbc)	5m 38s
tests (20.x, databricks-jdbc-export-bucket-s3)	7m 6s
tests (20.x, databricks-jdbc-export-bucket-azure)	6m 42s
tests (20.x, mssql)	5m 52s
tests (20.x, mysql)	5m 2s
tests (20.x, postgres)	5m 10s
tests (20.x, redshift)	4m 56s
tests (20.x, redshift-export-bucket-s3)	5m 37s
tests (20.x, snowflake)	5m 13s
tests (20.x, snowflake-export-bucket-s3)	5m 29s
tests (20.x, snowflake-export-bucket-azure)	5m 14s
tests (20.x, snowflake-export-bucket-azure-via-storage-integration)	5m 18s
tests (20.x, snowflake-export-bucket-gcs)	5m 0s
	1h 57m 17s

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