Comparison keeps flagging index changes

Compares and synchronizes MySQL database schemas.

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Comparison keeps flagging index changes

Postby bstewart » Wed Oct 17, 2012 11:58 am

I'm currently using a development database which is running the following MySQL version:

protocol_version;10
version;5.1.46-community
version_comment;MySQL Community Server (GPL)
version_compile_machine;unknown
version_compile_os;Win64

The UAT server I'm deploying to is as follows:

protocol_version;10
version;5.5.24-0ubuntu0.12.04.1
version_comment;(Ubuntu)
version_compile_machine;x86_64
version_compile_os;debian-linux-gnu

Whenever I do a compare between these two databases, any table with an index will get flagged as being changed. In the MySQL compare GUI when looking at the comparison between the CREATE statements for the two tables, the only difference is in the database prefix before the table name. However, the deployment script just contains a load of statements like this:

Code: Select all
DROP INDEX `idx_usergroup_adjacency_lookup` ON `scie-uat`.`jos_usergroups`;
CREATE INDEX `idx_usergroup_adjacency_lookup` ON `scie-uat`.`jos_usergroups`(`parent_id`);
DROP INDEX `idx_usergroup_nested_set_lookup` ON `scie-uat`.`jos_usergroups`;
CREATE INDEX `idx_usergroup_nested_set_lookup` ON `scie-uat`.`jos_usergroups`(`lft`, `rgt`);
DROP INDEX `idx_usergroup_title_lookup` ON `scie-uat`.`jos_usergroups`;
CREATE INDEX `idx_usergroup_title_lookup` ON `scie-uat`.`jos_usergroups`(`title`);


Regardless of how many times I run the deployment, it always thinks those same tables have changes and generates similar DROP INDEX/CREATE INDEX statements in the deployment.

Any ideas how I can fix this?
bstewart
 
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Joined: Tue Jul 31, 2012 9:40 am

Postby Michael Christofides » Thu Oct 18, 2012 5:34 pm

Thanks for the report. Could you check you're using the latest version (Help -> Check for updates) and if not update and try again.

Apologies for the inconvenience, I'll look into whether this is something we thought we'd fixed.
Michael Christofides
 
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Joined: Wed Apr 20, 2011 6:37 pm
Location: Red Gate Software

Postby bstewart » Fri Oct 19, 2012 8:13 am

Sorry, I should have mentioned the version number. 1.0.0.409 which should be the latest version (running on Win 7 Enterprise SP1 x64).
bstewart
 
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Joined: Tue Jul 31, 2012 9:40 am

Postby Michael Christofides » Fri Oct 19, 2012 3:55 pm

No problem, thank you.

I'm afraid it looks like its an bug we'll need to fix in the tool. Please do let me know if you're evaluating or an existing customer. Feel free to email us at mysql@red-gate.com
Michael Christofides
 
Posts: 95
Joined: Wed Apr 20, 2011 6:37 pm
Location: Red Gate Software

Exact same problem

Postby helrod » Thu Nov 15, 2012 12:12 am

I see the exact same issue. Also running 1.0.0.409 (trial). Also running Windows 7 64-bit. Against MSSQL

It's kind of a deal-breaker, as in this schema, I get about 200 false positive changes because there's an index -- even though the index is identical. Toad doesn't seem to have this problem.
helrod
 
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Joined: Thu Nov 15, 2012 12:07 am

Postby Michael Christofides » Thu Nov 15, 2012 2:07 pm

Thanks for letting us know helrod, I'll update here when we have a fix available.

When you say "Against MSSQL", what do you mean? I've normally seen this as the abbreviation of Microsoft SQL Sever.
Michael Christofides
 
Posts: 95
Joined: Wed Apr 20, 2011 6:37 pm
Location: Red Gate Software

Postby Michael Christofides » Mon Dec 10, 2012 8:25 pm

Thanks all for your patience, this issue has now been fixed. You can get the latest versions by checking for updates within the tool or from our website here:
http://downloads.red-gate.com/MySQLComparisonBundle.exe
Michael Christofides
 
Posts: 95
Joined: Wed Apr 20, 2011 6:37 pm
Location: Red Gate Software

Re:

Postby bstewart » Tue Dec 11, 2012 10:47 am

Michael Christofides wrote:Thanks all for your patience, this issue has now been fixed. You can get the latest versions by checking for updates within the tool or from our website here:
http://downloads.red-gate.com/MySQLComparisonBundle.exe


I downloaded the latest version (1.0.0.425) and the issue appears to be resolved. Thanks for the update Michael.
bstewart
 
Posts: 11
Joined: Tue Jul 31, 2012 9:40 am


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