ClickHouse/tests/queries/0_stateless/01785_dictionary_element_count.sql

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2021-09-12 12:35:27 +00:00
-- Tags: no-parallel
2021-04-02 20:16:04 +00:00
DROP DATABASE IF EXISTS 01785_db;
CREATE DATABASE 01785_db;
DROP TABLE IF EXISTS 01785_db.simple_key_source_table;
CREATE TABLE 01785_db.simple_key_source_table
(
id UInt64,
value String
) ENGINE = TinyLog();
INSERT INTO 01785_db.simple_key_source_table VALUES (1, 'First');
INSERT INTO 01785_db.simple_key_source_table VALUES (1, 'First');
DROP DICTIONARY IF EXISTS 01785_db.simple_key_flat_dictionary;
CREATE DICTIONARY 01785_db.simple_key_flat_dictionary
(
id UInt64,
value String
)
PRIMARY KEY id
SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() DB '01785_db' TABLE 'simple_key_source_table'))
LAYOUT(FLAT())
LIFETIME(MIN 0 MAX 1000);
SELECT * FROM 01785_db.simple_key_flat_dictionary;
SELECT name, database, element_count FROM system.dictionaries WHERE database = '01785_db' AND name = 'simple_key_flat_dictionary';
DROP DICTIONARY 01785_db.simple_key_flat_dictionary;
CREATE DICTIONARY 01785_db.simple_key_hashed_dictionary
(
id UInt64,
value String
)
PRIMARY KEY id
SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() DB '01785_db' TABLE 'simple_key_source_table'))
LAYOUT(HASHED())
LIFETIME(MIN 0 MAX 1000);
SELECT * FROM 01785_db.simple_key_hashed_dictionary;
SELECT name, database, element_count FROM system.dictionaries WHERE database = '01785_db' AND name = 'simple_key_hashed_dictionary';
DROP DICTIONARY 01785_db.simple_key_hashed_dictionary;
CREATE DICTIONARY 01785_db.simple_key_cache_dictionary
(
id UInt64,
value String
)
PRIMARY KEY id
SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() DB '01785_db' TABLE 'simple_key_source_table'))
LAYOUT(CACHE(SIZE_IN_CELLS 100000))
LIFETIME(MIN 0 MAX 1000);
SELECT toUInt64(1) as key, dictGet('01785_db.simple_key_cache_dictionary', 'value', key);
SELECT name, database, element_count FROM system.dictionaries WHERE database = '01785_db' AND name = 'simple_key_cache_dictionary';
DROP DICTIONARY 01785_db.simple_key_cache_dictionary;
DROP TABLE 01785_db.simple_key_source_table;
DROP TABLE IF EXISTS 01785_db.complex_key_source_table;
CREATE TABLE 01785_db.complex_key_source_table
(
id UInt64,
id_key String,
value String
) ENGINE = TinyLog();
INSERT INTO 01785_db.complex_key_source_table VALUES (1, 'FirstKey', 'First');
INSERT INTO 01785_db.complex_key_source_table VALUES (1, 'FirstKey', 'First');
CREATE DICTIONARY 01785_db.complex_key_hashed_dictionary
(
id UInt64,
id_key String,
value String
)
PRIMARY KEY id, id_key
SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() DB '01785_db' TABLE 'complex_key_source_table'))
LAYOUT(COMPLEX_KEY_HASHED())
LIFETIME(MIN 0 MAX 1000);
SELECT * FROM 01785_db.complex_key_hashed_dictionary;
SELECT name, database, element_count FROM system.dictionaries WHERE database = '01785_db' AND name = 'complex_key_hashed_dictionary';
DROP DICTIONARY 01785_db.complex_key_hashed_dictionary;
DROP TABLE 01785_db.complex_key_source_table;
DROP DATABASE 01785_db;