Some base types of MobilityDB are provided in PostgreSQL by the database itself or by an extension MobilityDB requires: jsonb and jsonpath by PostgreSQL, h3index by the h3 extension, and pcpoint and pcpatch by the pointcloud extension. The operators and functions of the provider keep their spelling, and every engine, PostgreSQL included, also calls these operations by the names below. Their comparisons are the functions of the section called “Traditional Comparisons” together with cmp, and their hash functions are hash and hashExtended, which Apache Spark and Apache Flink call jsonbHash, jsonbHashExtended, h3indexHash and h3indexHashExtended, as they call the hash functions of every other type by the name of the type. A value is read from its text by jsonbFromText, jsonpathFromText and h3indexFromText and written by asText, which a literal and a cast from and to text reach in PostgreSQL. The text of a pcpoint and of a pcpatch is the hex of its Well-Known Binary, read by pcpointFromHexWKB and pcpatchFromHexWKB and written by asHexWKB.