Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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10.3
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None
Description
This script queries I_S for a latin1 compressed varchar column:
CREATE OR REPLACE TABLE t1 (a VARCHAR(10) CHARACTER SET latin1 COMPRESSED); |
SELECT
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CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH
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FROM
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INFORMATION_SCHEMA.COLUMNS
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WHERE
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TABLE_SCHEMA='test' AND TABLE_NAME='t1' AND COLUMN_NAME='a'; |
+--------------------------+------------------------+
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| CHARACTER_MAXIMUM_LENGTH | CHARACTER_OCTET_LENGTH |
|
+--------------------------+------------------------+
|
| 11 | 11 |
|
+--------------------------+------------------------+
|
11 looks wrong. The expected value would be 10 for both columns.
Now trying an utf8 column:
CREATE OR REPLACE TABLE t1 (a VARCHAR(10) CHARACTER SET utf8 COMPRESSED); |
SELECT
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CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH
|
FROM
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INFORMATION_SCHEMA.COLUMNS
|
WHERE
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TABLE_SCHEMA='test' AND TABLE_NAME='t1' AND COLUMN_NAME='a'; |
+--------------------------+------------------------+
|
| CHARACTER_MAXIMUM_LENGTH | CHARACTER_OCTET_LENGTH |
|
+--------------------------+------------------------+
|
| 10 | 31 |
|
+--------------------------+------------------------+
|
The value for CHARACTER_OCTET_LENGTH is wrong. The expected result is 30.
Attachments
Issue Links
- relates to
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- Closed
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