Module dbcrossbarlib::drivers::bigquery_shared

Code shared between various BigQuery-related drivers.

Much of this code falls into a few major categories:

• Extension traits which extend "portable" types with BigQuery-specific APIs. These wrappers include [TableBigQueryExt], [ColumnBigQueryExt] and [DataTypeBigQueryExt].
• Native BigQuery equivalents of our portable types, including [BqTable], [BqColumn] and [BqDataType].

The best starting points are probably [TableBigQueryExt] and [BqTable].