管理操作函数 AddGeometryColumn - Adds a geometry column to an existing table of attributes. By default uses type modifier to define rather than constraints. Pass in false for use_typmod to get old check constraint based behavior DropGeometryColumn - Remove…
PostgreSQL: The world's most advanced open source database https://www.postgresql.org/ POSTGRESQL: THE WORLD'S MOST ADVANCED OPEN SOURCE RELATIONAL DATABASE PostgreSQL: Documentation: 10: PostgreSQL 10.4 Documentation https://www.postgresql.org/docs/…