## Description 

This PR makes some changes to allow sui indexer writer to work with
tidb:

1. TiDB does not support UDFs and stored procedure (but Mysql does). For
doing advance_partition, we invoke it directly through a query in a
transaction
2. Remove udf and stored procedure from mysql migraitons
3. Some columns which store bcs are not big enough as `blob` types in
mysql/tidb. Making them `mediumblob` instead
4. 
## Test plan 

Running locally and ingesting data into a tidb cluster