mirror of
https://github.com/GreptimeTeam/greptimedb.git
synced 2026-01-15 01:32:56 +00:00
142 lines
5.7 KiB
Plaintext
142 lines
5.7 KiB
Plaintext
CREATE TABLE test(i INTEGER, j TIMESTAMP TIME INDEX);
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Affected Rows: 0
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DESC TABLE test;
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+--------+----------------------+-----+------+---------+---------------+
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| Column | Type | Key | Null | Default | Semantic Type |
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+--------+----------------------+-----+------+---------+---------------+
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| i | Int32 | | YES | | FIELD |
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| j | TimestampMillisecond | PRI | NO | | TIMESTAMP |
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+--------+----------------------+-----+------+---------+---------------+
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INSERT INTO test VALUES (1, 1), (2, 2);
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Affected Rows: 2
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ALTER TABLE test ADD COLUMN k INTEGER;
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Affected Rows: 0
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ALTER TABLE test ADD COLUMN IF NOT EXISTS k INTEGER;
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Affected Rows: 0
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SELECT * FROM test;
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+---+-------------------------+---+
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| i | j | k |
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+---+-------------------------+---+
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| 1 | 1970-01-01T00:00:00.001 | |
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| 2 | 1970-01-01T00:00:00.002 | |
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+---+-------------------------+---+
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DESC TABLE test;
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+--------+----------------------+-----+------+---------+---------------+
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| Column | Type | Key | Null | Default | Semantic Type |
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+--------+----------------------+-----+------+---------+---------------+
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| i | Int32 | | YES | | FIELD |
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| j | TimestampMillisecond | PRI | NO | | TIMESTAMP |
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| k | Int32 | | YES | | FIELD |
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+--------+----------------------+-----+------+---------+---------------+
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ALTER TABLE test ADD COLUMN host STRING PRIMARY KEY;
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Affected Rows: 0
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SELECT * FROM test;
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+---+-------------------------+---+------+
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| i | j | k | host |
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+---+-------------------------+---+------+
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| 1 | 1970-01-01T00:00:00.001 | | |
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| 2 | 1970-01-01T00:00:00.002 | | |
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+---+-------------------------+---+------+
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DESC TABLE test;
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+--------+----------------------+-----+------+---------+---------------+
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| Column | Type | Key | Null | Default | Semantic Type |
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+--------+----------------------+-----+------+---------+---------------+
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| i | Int32 | | YES | | FIELD |
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| j | TimestampMillisecond | PRI | NO | | TIMESTAMP |
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| k | Int32 | | YES | | FIELD |
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| host | String | PRI | YES | | TAG |
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+--------+----------------------+-----+------+---------+---------------+
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ALTER TABLE test ADD COLUMN idc STRING default 'idc' PRIMARY KEY;
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Affected Rows: 0
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SELECT * FROM test;
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+---+-------------------------+---+------+-----+
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| i | j | k | host | idc |
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+---+-------------------------+---+------+-----+
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| 1 | 1970-01-01T00:00:00.001 | | | idc |
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| 2 | 1970-01-01T00:00:00.002 | | | idc |
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+---+-------------------------+---+------+-----+
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DESC TABLE test;
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+--------+----------------------+-----+------+---------+---------------+
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| Column | Type | Key | Null | Default | Semantic Type |
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+--------+----------------------+-----+------+---------+---------------+
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| i | Int32 | | YES | | FIELD |
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| j | TimestampMillisecond | PRI | NO | | TIMESTAMP |
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| k | Int32 | | YES | | FIELD |
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| host | String | PRI | YES | | TAG |
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| idc | String | PRI | YES | idc | TAG |
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+--------+----------------------+-----+------+---------+---------------+
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ALTER TABLE test ADD COLUMN "IdC" STRING default 'idc' PRIMARY KEY;
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Affected Rows: 0
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DESC TABLE test;
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+--------+----------------------+-----+------+---------+---------------+
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| Column | Type | Key | Null | Default | Semantic Type |
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+--------+----------------------+-----+------+---------+---------------+
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| i | Int32 | | YES | | FIELD |
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| j | TimestampMillisecond | PRI | NO | | TIMESTAMP |
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| k | Int32 | | YES | | FIELD |
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| host | String | PRI | YES | | TAG |
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| idc | String | PRI | YES | idc | TAG |
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| IdC | String | PRI | YES | idc | TAG |
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+--------+----------------------+-----+------+---------+---------------+
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ALTER TABLE test ADD COLUMN "foo" STRING default 'foo' PRIMARY KEY, ADD COLUMN "bar" STRING default 'bar' PRIMARY KEY;
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Affected Rows: 0
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ALTER TABLE test ADD COLUMN IF NOT EXISTS "foo" STRING default 'foo' PRIMARY KEY, ADD COLUMN "bar" STRING default 'bar' PRIMARY KEY;
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Error: 4003(TableColumnExists), Column bar already exists in table test
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ALTER TABLE test ADD COLUMN IF NOT EXISTS "foo" STRING default 'foo' PRIMARY KEY, ADD COLUMN IF NOT EXISTS "bar" STRING default 'bar' PRIMARY KEY;
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Affected Rows: 0
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DESC TABLE test;
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+--------+----------------------+-----+------+---------+---------------+
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| Column | Type | Key | Null | Default | Semantic Type |
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+--------+----------------------+-----+------+---------+---------------+
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| i | Int32 | | YES | | FIELD |
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| j | TimestampMillisecond | PRI | NO | | TIMESTAMP |
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| k | Int32 | | YES | | FIELD |
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| host | String | PRI | YES | | TAG |
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| idc | String | PRI | YES | idc | TAG |
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| IdC | String | PRI | YES | idc | TAG |
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| foo | String | PRI | YES | foo | TAG |
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| bar | String | PRI | YES | bar | TAG |
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+--------+----------------------+-----+------+---------+---------------+
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DROP TABLE test;
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Affected Rows: 0
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