Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Not a Bug
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10.3.7
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None
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Windows
Description
1. Create a table schema 'test' and put something in it, e.g. a table called 'test' with one column.
2. The following command should dump this table schema: mysqldump -u root -ppassword -P 3310 test > "<path to dump location>"
3. Output:
mysqldump: [Warning] Using a password on the command line interface can be insecure.
mysqldump: Couldn't execute 'SELECT COLUMN_NAME, JSON_EXTRACT(HISTOGRAM, '$."number-of-buckets-specified"') FROM information_schema.COLUMN_STATISTICS WHERE SCHEMA_NAME = 'test' AND TABLE_NAME = 'test';': Unknown table 'column_statistics' in information_schema (1109)
I did not experience this issue in MariaDB versions 10.1 or lower. It exists in neither MySQL 5.x versions nor in 8.x versions. However I came across this MySQL report, which might be related: https://bugs.mysql.com/bug.php?id=89825.
The workaround to this problem is to add the --column-statistics=0 parameter to the command but I figure that should be the default.
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Yes you are right, this is a mysql issue. Apparently it is the same bug as the one I linked to in the description. Dumping a mariaDB table schema triggers this error whereas dumping a mysql 8 table schema does not, hence the confusion.
You are apparently using mysqldump of MySQL 8.0, it's the only version that I could find which even has column-statistics option. Not surprisingly, it's not fully compatible with MariaDB 10.3, nothing we can do about that.
Please run mysqldump --version.