TiDB to Azure Synapse Integration

How Datrise loads TiDB into Azure Synapse

Datrise syncs TiDB's tables, rows, schemas, indexes, regions, and TiCDC change events into Azure Synapse as a typed table per source entity. Flexible or custom fields land in NVARCHAR(MAX) JSON columns, and timestamps such as created, updated, and status changes are typed as datetime2.

Sync is incremental: Datrise uses COPY into staging, then a MERGE on stable id, so re-runs update only what changed. Hash distribution on the join id with date partitioning on facts. Synapse dedicated pools reward good hash-distribution choices, so Datrise distributes on entity ids to avoid data-movement-heavy joins.

Ideal for Azure analytics estates feeding Power BI.

Endpoints

TiDB: MySQL-compatible HTAP database with row and column stores.

Azure Synapse: Microsoft analytics workspace with SQL pools.

How TiDB entities map to Azure Synapse

TiDB entity	Azure Synapse object	Notes
tables	`tidb_tables`	id PK · custom fields → NVARCHAR(MAX) JSON columns
rows	`tidb_rows`	id PK · linked to tidb_tables
schemas	`tidb_schemas`	id PK · linked to tidb_tables
indexes	`tidb_indexes`	id PK · linked to tidb_tables

FAQ

How does Datrise handle TiDB's custom fields in Azure Synapse?

Flexible values are stored as NVARCHAR(MAX) JSON columns, so new fields don't require a migration; strongly-typed fields — dates, numbers, and references — are promoted to native Azure Synapse types.

How does the TiDB to Azure Synapse sync stay up to date?

It runs incrementally — Datrise uses COPY into staging, then a MERGE on stable id.

Related pipelines

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