Dameng DM8, natively.
Native DM8 connections with typed SQL, schema and dependency inspection, EXPLAIN on real DM plan operators, copy and sync between engines, user and admin tooling, and encrypted archive backup and restore.
DM8 native driver · TLS
The plan Mongrel would build for your query.
Click any operator below to see cost, cardinality, and what Mongrel would suggest. Same view you get inside the workbench.
// SSEK · idx_orders_cust_created
Secondary index seek on idx_orders_cust_created. Range seek on customer_id + created_at replaces a full CSCN2 scan of orders.
-- SALES · dm8-prod-1 SELECT o.order_id, o.total_amt, o.status, c.email AS customer_email FROM sales.orders o JOIN sales.customers c ON c.customer_id = o.customer_id WHERE o.created_at >= DATE '2026-06-01' AND o.status = 'PAID' ORDER BY o.created_at DESC LIMIT 20; -- 486ms · CSCN2 full scan on orders -- ✓ Proposal: composite (customer_id, created_at) CREATE INDEX idx_orders_cust_created ON sales.orders (customer_id, created_at);
What Mongrel ships for Dameng.
Native DM8 SQL
Typed SQL over the native DM8 driver with schema-aware completion, bound parameters, and cancellable execution.
EXPLAIN & plan inspection
Run EXPLAIN and walk the real DM plan tree — NSET, SLCT, SSEK, CSCN, HASH JOIN — with cost and cardinality per node.
Schema & dependency inspection
Browse schemas, tables, views, and procedures. Trace object dependencies before you alter or drop anything.
Index management
Create, drop, and rebuild indexes from the UI. See which scans would turn into seeks and which indexes sit unused.
Copy & sync
Move tables and result sets between DM8 and any other supported engine. Schema-aware mapping, type-safe on both sides.
User & role administration
Browse users, roles, and grants. Privileged actions stay gated behind the connecting account's own rights.
Archive backup & restore
Encrypted archive backups of schemas and data, restored into the same or another DM8 instance with verification.
Session & activity monitoring
Live session lists, running SQL, lock waits, and kill controls — the DBA views you already know, in one panel.
AI explain & rewrite
Paste a query and its plan. The assistant rewrites it, proposes indexes, and shows the predicted plan — it never executes.