A few functions are missing and need low-level implementation in s2geography to complete parity with the list of functions at https://docs.cloud.google.com/bigquery/docs/reference/standard-sql/geography_functions . - [ST_LINESUBSTRING](https://docs.cloud.google.com/bigquery/docs/reference/standard-sql/geography_functions#st_linesubstring) - [ST_COVEREDBY](https://docs.cloud.google.com/bigquery/docs/reference/standard-sql/geography_functions#st_coveredby) - [ST_COVERS](https://docs.cloud.google.com/bigquery/docs/reference/standard-sql/geography_functions#st_covers) - [ST_HAUSDORFFDWITHIN](https://docs.cloud.google.com/bigquery/docs/reference/standard-sql/geography_functions#st_hausdorffdwithin) - [ST_INTERSECTSBOX](https://docs.cloud.google.com/bigquery/docs/reference/standard-sql/geography_functions#st_intersectsbox) - [ST_TOUCHES](https://docs.cloud.google.com/bigquery/docs/reference/standard-sql/geography_functions#st_touches) - [ST_ANGLE](https://docs.cloud.google.com/bigquery/docs/reference/standard-sql/geography_functions#st_angle) - [ST_AZIMUTH](https://docs.cloud.google.com/bigquery/docs/reference/standard-sql/geography_functions#st_azimuth) - [ST_HAUSDORFFDISTANCE](https://docs.cloud.google.com/bigquery/docs/reference/standard-sql/geography_functions#st_hausdorffdistance)
A few functions are missing and need low-level implementation in s2geography to complete parity with the list of functions at https://docs.cloud.google.com/bigquery/docs/reference/standard-sql/geography_functions .