* 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>
