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65b654a1b6
This commit does the following: 1. StorageJoin with simple keys now supports reading 2. StorageJoin can be created with Join settings applied. Syntax is similar to MergeTree and Kafka 3. Left Any StorageJoin with one simple key can be used as a dictionary-like structure by function joinGet. Examples are listed in the related test file.
52 lines
2.0 KiB
SQL
52 lines
2.0 KiB
SQL
DROP TABLE IF EXISTS test.join_any_inner;
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DROP TABLE IF EXISTS test.join_any_left;
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DROP TABLE IF EXISTS test.join_any_left_null;
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DROP TABLE IF EXISTS test.join_all_inner;
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DROP TABLE IF EXISTS test.join_all_left;
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DROP TABLE IF EXISTS test.join_string_key;
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CREATE TABLE test.join_any_inner (s String, x Array(UInt8), k UInt64) ENGINE = Join(ANY, INNER, k);
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CREATE TABLE test.join_any_left (s String, x Array(UInt8), k UInt64) ENGINE = Join(ANY, LEFT, k);
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CREATE TABLE test.join_all_inner (s String, x Array(UInt8), k UInt64) ENGINE = Join(ALL, INNER, k);
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CREATE TABLE test.join_all_left (s String, x Array(UInt8), k UInt64) ENGINE = Join(ALL, LEFT, k);
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USE test;
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INSERT INTO test.join_any_inner VALUES ('abc', [0], 1), ('def', [1, 2], 2);
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INSERT INTO test.join_any_left VALUES ('abc', [0], 1), ('def', [1, 2], 2);
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INSERT INTO test.join_all_inner VALUES ('abc', [0], 1), ('def', [1, 2], 2);
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INSERT INTO test.join_all_left VALUES ('abc', [0], 1), ('def', [1, 2], 2);
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-- read from StorageJoin
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SELECT '--------read--------';
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SELECT * from test.join_any_inner;
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SELECT * from test.join_any_left;
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SELECT * from test.join_all_inner;
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SELECT * from test.join_all_left;
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-- create StorageJoin tables with customized settings
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CREATE TABLE test.join_any_left_null (s String, k UInt64) ENGINE = Join(ANY, LEFT, k) SETTINGS join_use_nulls = 1;
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INSERT INTO test.join_any_left_null VALUES ('abc', 1), ('def', 2);
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-- joinGet
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SELECT '--------joinGet--------';
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SELECT joinGet('join_any_left', 's', number) FROM numbers(3);
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SELECT '';
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SELECT joinGet('join_any_left_null', 's', number) FROM numbers(3);
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SELECT '';
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CREATE TABLE test.join_string_key (s String, x Array(UInt8), k UInt64) ENGINE = Join(ANY, LEFT, s);
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INSERT INTO test.join_string_key VALUES ('abc', [0], 1), ('def', [1, 2], 2);
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SELECT joinGet('join_string_key', 'x', 'abc'), joinGet('join_string_key', 'k', 'abc');
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USE default;
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DROP TABLE test.join_any_inner;
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DROP TABLE test.join_any_left;
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DROP TABLE test.join_any_left_null;
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DROP TABLE test.join_all_inner;
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DROP TABLE test.join_all_left;
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DROP TABLE test.join_string_key;
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