CREATE SERVER fdw_options FOREIGN DATA WRAPPER brainfuck_fdw; -- `program` is required. CREATE FOREIGN TABLE no_program (line text) SERVER fdw_options; ERROR: option "program" is required for brainfuck_fdw -- `program` must be a valid Brainfuck program. CREATE FOREIGN TABLE unmatched (line text) SERVER fdw_options OPTIONS (program '['); ERROR: unmatched "[" -- `rows` must be a positive integer. CREATE FOREIGN TABLE zero_rows (line text) SERVER fdw_options OPTIONS (program '+', rows '0'); ERROR: invalid value for option "rows": 0 CREATE FOREIGN TABLE many_rows (line text) SERVER fdw_options OPTIONS (program '+', rows 'many'); ERROR: invalid value for option "rows": many DROP SERVER fdw_options CASCADE;