# Clickhouse
# Why you should migrate the database to Clickhouse
- Significant increase in reports loading (from 10 to 20 times faster).
- Less disk usage.
# Changes in the API
- Column
ip
contains both IPv4 and IPv6 values. - Columns
click_id
andconversion_id
contains UUID value instead of number (integer). - Column
visitor_id
is removed, but you can still usevisitor_code
.