Module sql_migration 

Constants

LATEST_DATA_LAKE_SCHEMA_VERSION

The latest schema version for the data lake.

Functions

execute_migration

Executes the database migration.

read_data_lake_schema_version

Reads the current schema version from the database.

upgrade_data_lake_schema_v2

Upgrades the data lake schema to version 2.

upgrade_data_lake_schema_v3

Upgrades the data lake schema to version 3. Drops old non-unique indexes (superseded by the unique indexes created before this transaction).