Crate mz_timestamp_oracle

An interface/trait that provides write and read timestamps, reads observe exactly their preceding writes.

Specifically, all read timestamps will be greater or equal to all previously reported completed write timestamps, and strictly less than all subsequently emitted write timestamps.

Modules

batching_oracle

A timestamp oracle that wraps a TimestampOracle and batches calls to it.

metrics

Prometheus monitoring metrics.

postgres_oracle

A timestamp oracle backed by “Postgres” for persistence/durability and where all oracle operations are self-sufficiently linearized, without requiring any external precautions/machinery.

retry

Retry utilities.

tests

Structs

WriteTimestamp

Timestamps used by writes in an Append command.

Traits

GenericNowFn

A NowFn that is generic over the timestamp.

TimestampOracle

A type that provides write and read timestamps, reads observe exactly their preceding writes.