mirror of
https://github.com/ClickHouse/ClickHouse.git
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39 lines
1.0 KiB
MySQL
39 lines
1.0 KiB
MySQL
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DROP TABLE IF EXISTS bug_14144;
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CREATE TABLE bug_14144
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( meta_source_req_uuid Nullable(UUID),
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a Int64,
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meta_source_type String
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)
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ENGINE = MergeTree
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ORDER BY a;
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INSERT INTO bug_14144 SELECT cast(toUUID('442d3ff4-842a-45bb-8b02-b616122c0dc6'), 'Nullable(UUID)'), number, 'missing' FROM numbers(1000);
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INSERT INTO bug_14144 SELECT cast(toUUIDOrZero('2fc89389-4728-4b30-9e51-b5bc3ad215f6'), 'Nullable(UUID)'), number, 'missing' FROM numbers(1000);
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INSERT INTO bug_14144 SELECT cast(toUUIDOrNull('05fe40cb-1d0c-45b0-8e60-8e311c2463f1'), 'Nullable(UUID)'), number, 'missing' FROM numbers(1000);
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SELECT DISTINCT meta_source_req_uuid
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FROM bug_14144
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WHERE meta_source_type = 'missing'
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ORDER BY meta_source_req_uuid ASC;
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TRUNCATE TABLE bug_14144;
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INSERT INTO bug_14144 SELECT generateUUIDv4(), number, 'missing' FROM numbers(10000);
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SELECT COUNT() FROM (
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SELECT DISTINCT meta_source_req_uuid
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FROM bug_14144
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WHERE meta_source_type = 'missing'
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ORDER BY meta_source_req_uuid ASC
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LIMIT 100000
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);
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DROP TABLE bug_14144;
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