message: get_unique_constraints test
diff: @@ -255,6 +255,21 @@ ORDER BY
  t.relname,
  i.relname
  +# get_unique_constraints
  +statement ok
  +SELECT
  + cons.conname as name,
  + cons.conkey as key,
  + a.attnum as col_num,
  + a.attname as col_name
  +FROM
  + pg_catalog.pg_constraint cons
  + join pg_attribute a
  + on cons.conrelid = a.attrelid AND
  + a.attnum = ANY(cons.conkey)
  +WHERE
  + cons.conrelid = (SELECT MIN(table_oid) FROM duckdb_tables) AND
  + cons.contype = 'u'
  statement ok
  SELECT
  i.relname as relname,
  