mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-30 19:42:00 +00:00
95 lines
3.3 KiB
SQL
95 lines
3.3 KiB
SQL
SET send_logs_level = 'none';
|
|
|
|
DROP DATABASE IF EXISTS database_for_dict;
|
|
|
|
CREATE DATABASE database_for_dict Engine = Ordinary;
|
|
|
|
CREATE TABLE database_for_dict.table_for_dict
|
|
(
|
|
key_column UInt64,
|
|
second_column UInt8,
|
|
third_column String,
|
|
fourth_column Float64
|
|
)
|
|
ENGINE = MergeTree()
|
|
ORDER BY key_column;
|
|
|
|
INSERT INTO database_for_dict.table_for_dict SELECT number, number % 17, toString(number * number), number / 2.0 from numbers(100);
|
|
|
|
DROP DICTIONARY IF EXISTS database_for_dict.dict1;
|
|
|
|
CREATE DICTIONARY database_for_dict.dict1
|
|
(
|
|
key_column UInt64 DEFAULT 0,
|
|
second_column UInt8 DEFAULT 1,
|
|
third_column String DEFAULT 'qqq',
|
|
fourth_column Float64 DEFAULT 42.0
|
|
)
|
|
PRIMARY KEY key_column
|
|
SOURCE(CLICKHOUSE(HOST 'localhost' PORT 9000 USER 'default' TABLE 'table_for_dict' PASSWORD '' DB 'database_for_dict'))
|
|
LIFETIME(MIN 1 MAX 10)
|
|
LAYOUT(FLAT());
|
|
|
|
SELECT dictGetUInt8('database_for_dict.dict1', 'second_column', toUInt64(11));
|
|
SELECT second_column FROM database_for_dict.dict1 WHERE key_column = 11;
|
|
SELECT dictGetString('database_for_dict.dict1', 'third_column', toUInt64(12));
|
|
SELECT third_column FROM database_for_dict.dict1 WHERE key_column = 12;
|
|
SELECT dictGetFloat64('database_for_dict.dict1', 'fourth_column', toUInt64(14));
|
|
SELECT fourth_column FROM database_for_dict.dict1 WHERE key_column = 14;
|
|
|
|
SELECT count(distinct(dictGetUInt8('database_for_dict.dict1', 'second_column', toUInt64(number)))) from numbers(100);
|
|
|
|
DETACH DICTIONARY database_for_dict.dict1;
|
|
|
|
SELECT dictGetUInt8('database_for_dict.dict1', 'second_column', toUInt64(11)); -- {serverError 36}
|
|
|
|
ATTACH DICTIONARY database_for_dict.dict1;
|
|
|
|
SELECT dictGetUInt8('database_for_dict.dict1', 'second_column', toUInt64(11));
|
|
|
|
DROP DICTIONARY database_for_dict.dict1;
|
|
|
|
SELECT dictGetUInt8('database_for_dict.dict1', 'second_column', toUInt64(11)); -- {serverError 36}
|
|
|
|
CREATE DICTIONARY database_for_dict.dict1
|
|
(
|
|
key_column UInt64 DEFAULT 0,
|
|
second_column UInt8 DEFAULT 1,
|
|
third_column String DEFAULT 'qqq',
|
|
fourth_column Float64 DEFAULT 42.0
|
|
)
|
|
PRIMARY KEY key_column, third_column
|
|
SOURCE(CLICKHOUSE(HOST 'localhost' PORT 9000 USER 'default' TABLE 'table_for_dict' DB 'database_for_dict'))
|
|
LIFETIME(MIN 1 MAX 10)
|
|
LAYOUT(COMPLEX_KEY_CACHE(SIZE_IN_CELLS 1));
|
|
|
|
SELECT dictGetUInt8('database_for_dict.dict1', 'second_column', tuple(toUInt64(11), '121'));
|
|
SELECT dictGetFloat64('database_for_dict.dict1', 'fourth_column', tuple(toUInt64(14), '196'));
|
|
|
|
DETACH DICTIONARY database_for_dict.dict1;
|
|
|
|
SELECT dictGetUInt8('database_for_dict.dict1', 'second_column', tuple(toUInt64(11), '121')); -- {serverError 36}
|
|
|
|
ATTACH DICTIONARY database_for_dict.dict1;
|
|
|
|
SELECT dictGetUInt8('database_for_dict.dict1', 'second_column', tuple(toUInt64(11), '121'));
|
|
|
|
CREATE DICTIONARY database_for_dict.dict2
|
|
(
|
|
key_column UInt64 DEFAULT 0,
|
|
some_column String EXPRESSION toString(fourth_column),
|
|
fourth_column Float64 DEFAULT 42.0
|
|
)
|
|
PRIMARY KEY key_column
|
|
SOURCE(CLICKHOUSE(HOST 'localhost' PORT 9000 USER 'default' TABLE 'table_for_dict' DB 'database_for_dict'))
|
|
LIFETIME(MIN 1 MAX 10)
|
|
LAYOUT(HASHED());
|
|
|
|
SELECT dictGetString('database_for_dict.dict2', 'some_column', toUInt64(12));
|
|
|
|
SELECT name, engine FROM system.tables WHERE database = 'database_for_dict' ORDER BY name;
|
|
|
|
SELECT database, name, type FROM system.dictionaries WHERE database = 'database_for_dict' ORDER BY name;
|
|
|
|
DROP DATABASE IF EXISTS database_for_dict;
|