Merge pull request #1518 from tugelbend/develop
preserve local indexes of friendica database when updating
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@ -151,9 +151,9 @@ function update_structure($verbose, $action, $tables=null, $definition=null) {
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if(false === $r)
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$errors .= t('Errors encountered creating database tables.').$name.EOL;
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} else {
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// Drop the index if it isn't present in the definition
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// Drop the index if it isn't present in the definition and index name doesn't start with "local_"
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foreach ($database[$name]["indexes"] AS $indexname => $fieldnames)
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if (!isset($structure["indexes"][$indexname])) {
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if (!isset($structure["indexes"][$indexname]) && substring($indexname, 0, 5) != 'local_') {
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$sql2=db_drop_index($indexname);
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if ($sql3 == "")
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$sql3 = "ALTER TABLE `".$name."` ".$sql2;
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