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unique keys and indexes must be NOT NULL or MySQL fucks up

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If this merge throws exception on scripts/upgrade.php and you recently
tried a nightly (i.e. during 2015-02-19) then just go back a commit or two
and try again.

Or delete the duplicate entries. Find the entries like this:

SELECT COUNT(*), urlhash FROM file_redirection
    GROUP BY urlhash
    HAVING COUNT(*) > 1;

then for each urlhash (or come up with a smart SQL query) do:
DELETE FROM file_redirection WHERE urlhash='hashfrompreviousquery' LIMIT 1;

You'll have to remove duplicates more than once if you have >2 identical
urlhash entries. LIMIT -1 might do that for you. I'm not sure.
This commit is contained in:
Mikael Nordfeldth
2015-02-19 21:21:39 +01:00
parent d061e1065e
commit b54710950f
2 changed files with 2 additions and 2 deletions
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2
classes/File.php
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@@ -45,7 +45,7 @@ class File extends Managed_DataObject
return array(
'fields' => array(
'id' => array('type' => 'serial', 'not null' => true),
'urlhash' => array('type' => 'varchar', 'length' => 64, 'description' => 'sha256 of destination URL (url field)'),
'urlhash' => array('type' => 'varchar', 'length' => 64, 'not null' => true, 'description' => 'sha256 of destination URL (url field)'),
'url' => array('type' => 'text', 'description' => 'destination URL after following redirections'),
'mimetype' => array('type' => 'varchar', 'length' => 50, 'description' => 'mime type of resource'),
'size' => array('type' => 'int', 'description' => 'size of resource when available'),