Copy schema and create new schema with different name in the same data base

Question

I there a way to copy the existing schema and generate new schema with another name in the same database in postgres.

Answer 1

In the case you are OK with only tables and columns (without constraints, keys etc.) this simple script could be helpful

DO LANGUAGE plpgsql
$body$
DECLARE
   old_schema NAME = 'src_schema';
   new_schema NAME = 'dst_schema';
   tbl TEXT;
   sql TEXT;
BEGIN
  EXECUTE format('CREATE SCHEMA IF NOT EXISTS %I', new_schema);

  FOR tbl IN
    SELECT table_name
    FROM information_schema.tables
    WHERE table_schema=old_schema
  LOOP
    sql := format(
            'CREATE TABLE IF NOT EXISTS %I.%I '
            'AS '
            'SELECT * FROM %I.%I'
            , new_schema, tbl, old_schema, tbl);
    raise notice 'Sql: %', sql;

    EXECUTE sql;
  END LOOP;
END
$body$;