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Document IcebergOffsetBackingStore, IcebergSchemaHistory storage classes #183

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Apr 1, 2023
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Document IcebergOffsetBackingStore, IcebergSchemaHistory storage classes #183

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19 changes: 19 additions & 0 deletions docs/DOCS.md
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Expand Up @@ -110,9 +110,28 @@ debezium.sink.iceberg.table-prefix=cdc_

With above config database table = `inventory.customers` is replicated to `default.testc_cdc_inventory_customers`

## IcebergOffsetBackingStore Offset Storage

This implementation saves CDC offset to an iceberg table.

```
debezium.source.offset.storage=io.debezium.server.iceberg.offset.IcebergOffsetBackingStore
debezium.source.offset.storage.iceberg.table-name=debezium_offset_storage_table
```

## IcebergSchemaHistory Database History Storage

This implementation saves database history to an iceberg table.

```properties
debezium.source.database.history=io.debezium.server.iceberg.history.IcebergSchemaHistory
debezium.source.database.history.iceberg.table-name=debezium_database_history_storage_table
```

## Debezium Event Flattening

Iceberg consumer requires event flattening.

```properties
debezium.transforms=unwrap
debezium.transforms.unwrap.type=io.debezium.transforms.ExtractNewRecordState
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