MySQL Bugs: #93265: ADD COLUMN marked as table-rebuilding operation in MySQL 8.0 manual

Bug #93265	ADD COLUMN marked as table-rebuilding operation in MySQL 8.0 manual
Submitted:	21 Nov 2018 8:47	Modified:	25 Nov 2018 7:03
Reporter:	Alexey Kopytov	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server: Documentation	Severity:	S3 (Non-critical)
Version:	8.0	OS:	Any
Assigned to:		CPU Architecture:	Any

Description:
It is not clear why adding a column is categorized as an unconditionally
table-rebuilding operation at
https://dev.mysql.com/doc/refman/8.0/en/innodb-online-ddl-operations.html#online-ddl-colum...

Whether adding a column actually rebuilds the table depends on whether
the INSTANT algorithm is used. If the operation is marked as "Instant
with comments"@ (denoted by the asterisk near "Yes" in the "Instant"
column), then it should also be marked as "non-rebuilding with comments",
i.e. say "No*" in the "Rebuilds Table" column.

How to repeat:
Look at the "Adding a column" row at 
https://dev.mysql.com/doc/refman/8.0/en/innodb-online-ddl-operations.html#online-ddl-colum...

Hello Alexey,

Thank you for the report!

regards,
Umesh

Posted by developer:
 
The documentation has been updated as suggested. Changes should appear online soon.

Thank you for the bug report.

Sorry, I realized soon after posting it that "Only Modifies Metadata" for "Adding a column" should also say "Yes*", but I was hoping that part will also be reviewed along with "Rebuilds Table".