* Add a comment to keep topics in sync
* Clean up code relating to table engines
* Add snapshots for table creation queries
* Remove optional import
* Add snapshot tests for CLICKHOUSE_REPLICATION schemas
Note that these are out of sync with cloud in most cases
* Add another warning comment
* Improve naming
* Upload static cohort using CSV, closes #2868
* fix tests
* Fix tests
* Fix e2e test
* Avoid double inserts
* Speed up query
* Move to params
* fix tests
* Use JSON instead of protobuf
* unused import
* produce instead of produce_proto
* Insert directly into clickhouse, no need for kafka
* a few quick fixes
* insert in batch to clickhouse
* test SQLi since we can't really trust what we are inserting
* Extra check for duplicates
Co-authored-by: James Greenhill <fuziontech@gmail.com>
