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8 lines
431 B
SQL
8 lines
431 B
SQL
set extremes = '1';
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DROP TABLE IF EXISTS HASH_TEST_INSERT;
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DROP TABLE IF EXISTS HASH_MV;
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CREATE TABLE HASH_TEST_INSERT (`STR_VAL` String) ENGINE = Null;
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CREATE MATERIALIZED VIEW HASH_MV (`HASH_VAL` UInt64, `STR_VAL` LowCardinality(String)) ENGINE = ReplacingMergeTree ORDER BY HASH_VAL AS SELECT xxHash64(STR_VAL) AS HASH_VAL, toLowCardinality(STR_VAL) AS STR_VAL FROM HASH_TEST_INSERT;
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INSERT INTO HASH_TEST_INSERT VALUES ('a');
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