mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-09-20 16:50:48 +00:00
92 lines
2.9 KiB
SQL
92 lines
2.9 KiB
SQL
DROP DATABASE IF EXISTS 01785_db;
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CREATE DATABASE 01785_db;
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DROP TABLE IF EXISTS 01785_db.simple_key_source_table;
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CREATE TABLE 01785_db.simple_key_source_table
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(
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id UInt64,
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value String
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) ENGINE = TinyLog();
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INSERT INTO 01785_db.simple_key_source_table VALUES (1, 'First');
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INSERT INTO 01785_db.simple_key_source_table VALUES (1, 'First');
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DROP DICTIONARY IF EXISTS 01785_db.simple_key_flat_dictionary;
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CREATE DICTIONARY 01785_db.simple_key_flat_dictionary
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(
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id UInt64,
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value String
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)
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PRIMARY KEY id
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SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() DB '01785_db' TABLE 'simple_key_source_table'))
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LAYOUT(FLAT())
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LIFETIME(MIN 0 MAX 1000);
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SELECT * FROM 01785_db.simple_key_flat_dictionary;
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SELECT name, database, element_count FROM system.dictionaries WHERE database = '01785_db' AND name = 'simple_key_flat_dictionary';
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DROP DICTIONARY 01785_db.simple_key_flat_dictionary;
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CREATE DICTIONARY 01785_db.simple_key_hashed_dictionary
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(
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id UInt64,
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value String
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)
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PRIMARY KEY id
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SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() DB '01785_db' TABLE 'simple_key_source_table'))
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LAYOUT(HASHED())
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LIFETIME(MIN 0 MAX 1000);
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SELECT * FROM 01785_db.simple_key_hashed_dictionary;
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SELECT name, database, element_count FROM system.dictionaries WHERE database = '01785_db' AND name = 'simple_key_hashed_dictionary';
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DROP DICTIONARY 01785_db.simple_key_hashed_dictionary;
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CREATE DICTIONARY 01785_db.simple_key_cache_dictionary
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(
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id UInt64,
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value String
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)
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PRIMARY KEY id
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SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() DB '01785_db' TABLE 'simple_key_source_table'))
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LAYOUT(CACHE(SIZE_IN_CELLS 100000))
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LIFETIME(MIN 0 MAX 1000);
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SELECT toUInt64(1) as key, dictGet('01785_db.simple_key_cache_dictionary', 'value', key);
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SELECT name, database, element_count FROM system.dictionaries WHERE database = '01785_db' AND name = 'simple_key_cache_dictionary';
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DROP DICTIONARY 01785_db.simple_key_cache_dictionary;
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DROP TABLE 01785_db.simple_key_source_table;
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DROP TABLE IF EXISTS 01785_db.complex_key_source_table;
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CREATE TABLE 01785_db.complex_key_source_table
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(
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id UInt64,
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id_key String,
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value String
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) ENGINE = TinyLog();
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INSERT INTO 01785_db.complex_key_source_table VALUES (1, 'FirstKey', 'First');
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INSERT INTO 01785_db.complex_key_source_table VALUES (1, 'FirstKey', 'First');
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CREATE DICTIONARY 01785_db.complex_key_hashed_dictionary
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(
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id UInt64,
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id_key String,
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value String
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)
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PRIMARY KEY id, id_key
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SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() DB '01785_db' TABLE 'complex_key_source_table'))
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LAYOUT(COMPLEX_KEY_HASHED())
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LIFETIME(MIN 0 MAX 1000);
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SELECT * FROM 01785_db.complex_key_hashed_dictionary;
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SELECT name, database, element_count FROM system.dictionaries WHERE database = '01785_db' AND name = 'complex_key_hashed_dictionary';
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DROP DICTIONARY 01785_db.complex_key_hashed_dictionary;
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DROP TABLE 01785_db.complex_key_source_table;
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DROP DATABASE 01785_db;
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