CREATE DATABASE database_dictionary_test_key_expression; CREATE TABLE database_dictionary_test_key_expression.test_for_dictionary (value String) ENGINE=TinyLog; INSERT INTO database_dictionary_test_key_expression.test_for_dictionary VALUES ('Test1'), ('Test2'), ('Test3'); SELECT 'Simple'; CREATE DICTIONARY database_dictionary_test_key_expression.test_query_log_dictionary_simple ( `value_id` UInt64 EXPRESSION cityHash64(value), `value` String ) PRIMARY KEY value_id SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() USER 'default' TABLE 'test_for_dictionary' DB 'database_dictionary_test_key_expression')) LIFETIME(MIN 1 MAX 10) LAYOUT(HASHED()); SELECT * FROM database_dictionary_test_key_expression.test_query_log_dictionary_simple; DROP DICTIONARY IF EXISTS database_dictionary_test_key_expression.test_query_log_dictionary_simple; SELECT 'Complex'; CREATE DICTIONARY database_dictionary_test_key_expression.test_query_log_dictionary_complex ( `value_id` UInt64 EXPRESSION cityHash64(value), `value_length` UInt64 EXPRESSION length(value), `value` String ) PRIMARY KEY value_id, value_length SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() USER 'default' TABLE 'test_for_dictionary' DB 'database_dictionary_test_key_expression')) LIFETIME(MIN 1 MAX 10) LAYOUT(COMPLEX_KEY_HASHED()); SELECT * FROM database_dictionary_test_key_expression.test_query_log_dictionary_complex; DROP DICTIONARY IF EXISTS database_dictionary_test_key_expression.test_query_log_dictionary_complex; DROP TABLE IF EXISTS database_dictionary_test_key_expression.test_for_dictionary; DROP DATABASE IF EXISTS database_dictionary_test_key_expression;