Module types 

Available on crate features sink-spanner or source-spanner only.

Spanner INFORMATION_SCHEMA type-string parsing and the mapping from Spanner column types to JSON-Schema fragments.

Enums

SpannerType

A parsed Spanner column type (GoogleSQL dialect).

Functions

parse_spanner_type

Parse an INFORMATION_SCHEMA.COLUMNS.SPANNER_TYPE string (e.g. STRING(MAX), INT64, ARRAY<FLOAT64>) into a SpannerType. Unrecognized types parse as SpannerType::Other, never an error.

spanner_type_to_json_schema

Map a SpannerType to the JSON-Schema fragment faucet’s discover / schema-drift machinery expects (an infer_schema-shaped {"type": …}). nullable widens the type with "null".