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37 lines
657 B
MySQL
37 lines
657 B
MySQL
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DROP TABLE IF EXISTS testView;
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DROP TABLE IF EXISTS testTable;
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CREATE TABLE IF NOT EXISTS testTable (
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A LowCardinality(String), -- like voter
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B Int64
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) ENGINE MergeTree()
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ORDER BY (A);
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INSERT INTO testTable VALUES ('A', 1),('B',2),('C',3)
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CREATE VIEW testView AS
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SELECT
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A as ALow, -- like account
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B
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FROM
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testTable;
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SELECT CAST(ALow, 'String') AS AStr
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FROM testView
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GROUP BY AStr;
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DROP TABLE testTable;
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CREATE TABLE IF NOT EXISTS testTable (
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A String, -- like voter
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B Int64
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) ENGINE MergeTree()
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ORDER BY (A);
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SELECT CAST(ALow, 'String') AS AStr
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FROM testView
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GROUP BY AStr;
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DROP TABLE IF EXISTS testView;
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DROP TABLE IF EXISTS testTable;
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