dpone-native-accel 0.42.0

Optional native acceleration provider for dpone native transfer

dpone-native-accel

dpone-native-accel is the optional provider package for dpone native-transfer acceleration. It contains the certified MSSQL BCP native -> ClickHouse Native block encoder and the direct ClickHouse Native TCP ingest backend.

The direct ingest backend sends pre-encoded ClickHouse Native blocks through the Native TCP protocol without spawning clickhouse-client. native_tcp.backend: auto selects this backend when the provider is installed and certified; backend: client keeps the subprocess fallback for compatibility benchmarks.

Optional provider package for dpone native-transfer acceleration.

The package exposes the stable provider boundary used by dpone[accel]. Backends declare certified capabilities before dpone can select them for native_transfer.wire.acceleration.mode: auto|required.

The v0.33 provider includes a fused MSSQL BCP native -> ClickHouse Native block encoder and a direct ClickHouse Native TCP insert backend. Direct insert uses a native-protocol INSERT ... VALUES query plus protocol Data packets; it does not shell out to clickhouse-client and does not materialize Python row objects.

Certification covers signed/unsigned integers, bool, Float32/Float64 finite extremes, Decimal128/Decimal256 max/min scaled values, nullable decimals, Unicode text, tabs/newlines, binary payloads, UUID, Date/Date32, DateTime/DateTime64 precision, FixedString padding and oversize rejection, and NULL versus empty values. Unsupported layouts fall back to the reference path unless acceleration is explicitly required.