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61 lines
1.5 KiB
SQL
61 lines
1.5 KiB
SQL
DROP TABLE IF EXISTS alter_default;
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CREATE TABLE alter_default
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(
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date Date,
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key UInt64
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)
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ENGINE ReplicatedMergeTree('/clickhouse/tables/alter_default', '1')
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ORDER BY key;
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INSERT INTO alter_default select toDate('2020-01-05'), number from system.numbers limit 100;
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-- Cannot add column without type
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ALTER TABLE alter_default ADD COLUMN value DEFAULT '10'; --{serverError 36}
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ALTER TABLE alter_default ADD COLUMN value String DEFAULT '10';
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SHOW CREATE TABLE alter_default;
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SELECT sum(cast(value as UInt64)) FROM alter_default;
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ALTER TABLE alter_default MODIFY COLUMN value UInt64;
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SHOW CREATE TABLE alter_default;
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ALTER TABLE alter_default MODIFY COLUMN value UInt64 DEFAULT 10;
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SHOW CREATE TABLE alter_default;
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SELECT sum(value) from alter_default;
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ALTER TABLE alter_default MODIFY COLUMN value DEFAULT 100;
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SHOW CREATE TABLE alter_default;
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ALTER TABLE alter_default MODIFY COLUMN value UInt16 DEFAULT 100;
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SHOW CREATE TABLE alter_default;
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SELECT sum(value) from alter_default;
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ALTER TABLE alter_default MODIFY COLUMN value UInt8 DEFAULT 10;
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SHOW CREATE TABLE alter_default;
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ALTER TABLE alter_default ADD COLUMN bad_column UInt8 DEFAULT 'q'; --{serverError 6}
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ALTER TABLE alter_default ADD COLUMN better_column UInt8 DEFAULT '1';
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SHOW CREATE TABLE alter_default;
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ALTER TABLE alter_default ADD COLUMN other_date String DEFAULT '0';
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ALTER TABLE alter_default MODIFY COLUMN other_date DateTime; --{serverError 41}
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ALTER TABLE alter_default MODIFY COLUMN other_date DEFAULT 1;
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SHOW CREATE TABLE alter_default;
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DROP TABLE IF EXISTS alter_default;
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