Timestamp/monotonic objects

Features

• serde Serialization/deserialization with serde

• chrono conversion between chrono types, also required to parse/deserialize strings from human-readable times

• sqlx encoding/decoding for sqlx

• as-float-secs a legacy feature: the default Timestamp de/serialization and string parsing is to/from float seconds (including integers)

sqlx encoding/decoding

Timestamp

• Sqlite: INTEGER (nanoseconds)

• PostgreSQL: TIMESTAMPTZ/TIMESTAMP

Monotonic

• Sqlite: INTEGER (nanoseconds)

• PostgreSQL: BIGINT (nanoseconds)