Adds migration to copy data from sessions to sessions partition
About:
This contains a migration for backfiling data to sessions_partition
partition table. Needs to be run with caution as it may take some time to copy data.
I ran this migration on a local docker clickhouse instance for 12M rows and a batch size of 10K rows at a time. Took appx 30 minutes.
Relates to #15 (closed)
Edited by Surabhi Suman