values

Overview ¶

Package values allows conversion from Apache Arrow array to the type accepted by ClickHouse SDK The conversion can become tricky for some nested types, specifically, maps. Nullable(item) -> *scanType(item). However, non-nullable are also saved as pointers for ease of coding. Decimal(precision,scale) -> decimal.Decimal UUID -> uuid.UUID Tuple(??) -> map[string]any (arrow supports only tuples with fields) Map(keys, values) -> map[scanType(keys)]scanType(values) Array(items) -> []scanType(items)

example: Map(String, Map(UUID, Map(String, Tuple(`uint8` Nullable(UInt8), `uuid` UUID)))) -> *map[string]*map[uuid.UUID]*map[string]*map[string]any