ClickHouse/tests/queries/bugs/low_cardinality_remove.sql

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2019-06-04 17:03:41 +00:00
DROP TABLE IF EXISTS testView;
DROP TABLE IF EXISTS testTable;
CREATE TABLE IF NOT EXISTS testTable (
A LowCardinality(String), -- like voter
B Int64
) ENGINE MergeTree()
ORDER BY (A);
INSERT INTO testTable VALUES ('A', 1),('B',2),('C',3)
CREATE VIEW testView AS
SELECT
A as ALow, -- like account
B
FROM
testTable;
SELECT CAST(ALow, 'String') AS AStr
FROM testView
GROUP BY AStr;
DROP TABLE testTable;
CREATE TABLE IF NOT EXISTS testTable (
A String, -- like voter
B Int64
) ENGINE MergeTree()
ORDER BY (A);
SELECT CAST(ALow, 'String') AS AStr
FROM testView
GROUP BY AStr;
DROP TABLE IF EXISTS testView;
DROP TABLE IF EXISTS testTable;