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MDEV-23497 fixup: Do not warn for ALTER TABLE conversion

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Our intention is to make users aware that the ROW_FORMAT=COMPRESSED
format is on its way to deprecation.  It is an unnecessary annoyance
to users if we issue a warning when the user is converting a
ROW_FORMAT=COMPRESSED table to a supported format
(such as ROW_FORMAT=DYNAMIC).

ha_innobase::is_read_only(): Add a parameter to specify that an
ALTER TABLE to a supported format has been requested.

ha_innobase::check_if_supported_inplace_alter(): Set the parameter
when ALTER_OPTIONS to something else than ROW_FORMAT=COMPRESSED
(and without KEY_BLOCK_SIZE) is being requested.

Thanks to Elena Stepanova for suggesting this.
This commit is contained in:
Marko Mäkelä
2021-03-18 17:05:31 +02:00
parent e0c3b5f9a5
commit 4903031baa
4 changed files with 10 additions and 5 deletions
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2
mysql-test/suite/innodb/r/default_row_format_compatibility.result
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@@ -96,8 +96,6 @@ SELECT * FROM tab;
a b
1 Check with max column size
ALTER TABLE tab ROW_FORMAT=Dynamic;
Warnings:
Warning 4047 InnoDB refuses to write tables with ROW_FORMAT=COMPRESSED or KEY_BLOCK_SIZE.
SET GLOBAL innodb_read_only_compressed=@save_innodb_read_only_compressed;
SHOW TABLE STATUS LIKE 'tab';
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment Max_index_length Temporary