Implementing Legacy Data Migration into Mycat2 Sharded Architecture
Pre-Migration Analysis
Identify high-volume tables requiring horizontal scaling. Queries against system catalogs help prioritize targets:
WITH TargetMetrics AS (
SELECT
table_name,
COALESCE(CAST(table_rows AS UNSIGNED), 0) AS estimated_volume
FROM information_schema.tables
WHERE table_schema = 'production_app'
...
Posted on Thu, 24 Sep 2026 16:45:50 +0000 by cschotch