dict1 /etc/clickhouse-server/config.d/dictionaries_lib/dict_lib.so test_simple nice key interesting, nice value //home/interesting-path/to-/interesting_data 11 user-u -user 1 1 key UInt64 value1 UInt64 value2 UInt64 value3 UInt64 dict2 /etc/clickhouse-server/config.d/dictionaries_lib/dict_lib.so test_nulls 1 1 key UInt64 value1 12 UInt64 value2 12 UInt64 value3 12 UInt64