mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-14 03:25:15 +00:00
46 lines
1.3 KiB
SQL
46 lines
1.3 KiB
SQL
DROP TABLE IF EXISTS dictionary_source_en;
|
|
DROP TABLE IF EXISTS dictionary_source_ru;
|
|
DROP TABLE IF EXISTS dictionary_source_view;
|
|
DROP DICTIONARY IF EXISTS flat_dictionary;
|
|
|
|
CREATE TABLE dictionary_source_en
|
|
(
|
|
id UInt64,
|
|
value String
|
|
) ENGINE = TinyLog;
|
|
|
|
INSERT INTO dictionary_source_en VALUES (1, 'One'), (2,'Two'), (3, 'Three');
|
|
|
|
CREATE TABLE dictionary_source_ru
|
|
(
|
|
id UInt64,
|
|
value String
|
|
) ENGINE = TinyLog;
|
|
|
|
INSERT INTO dictionary_source_ru VALUES (1, 'Один'), (2,'Два'), (3, 'Три');
|
|
|
|
CREATE VIEW dictionary_source_view AS SELECT id, dictionary_source_en.value as value_en, dictionary_source_ru.value as value_ru FROM dictionary_source_en LEFT JOIN dictionary_source_ru USING (id);
|
|
|
|
select * from dictionary_source_view;
|
|
|
|
CREATE DICTIONARY flat_dictionary
|
|
(
|
|
id UInt64,
|
|
value_en String,
|
|
value_ru String
|
|
)
|
|
PRIMARY KEY id
|
|
SOURCE(CLICKHOUSE(HOST 'localhost' PORT 9000 USER 'default' PASSWORD '' TABLE 'dictionary_source_view'))
|
|
LIFETIME(MIN 1 MAX 1000)
|
|
LAYOUT(FLAT());
|
|
|
|
SELECT
|
|
dictGet(concat(currentDatabase(), '.flat_dictionary'), 'value_en', number + 1),
|
|
dictGet(concat(currentDatabase(), '.flat_dictionary'), 'value_ru', number + 1)
|
|
FROM numbers(3);
|
|
|
|
DROP TABLE dictionary_source_en;
|
|
DROP TABLE dictionary_source_ru;
|
|
DROP TABLE dictionary_source_view;
|
|
DROP DICTIONARY flat_dictionary;
|