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31 lines
832 B
PHP
31 lines
832 B
PHP
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<?php
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// Destroy duplicate drafts before storage adjustment adds a unique key to this
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// table. See T1191. We retain the newest draft.
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// (We can't easily do this in a single SQL statement because MySQL won't let us
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// modify a table that's joined in a subquery.)
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$table = new DifferentialDraft();
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$conn_w = $table->establishConnection('w');
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$duplicates = queryfx_all(
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$conn_w,
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'SELECT DISTINCT u.id id FROM %T u
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JOIN %T v
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ON u.objectPHID = v.objectPHID
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AND u.authorPHID = v.authorPHID
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AND u.draftKey = v.draftKey
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AND u.id < v.id',
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$table->getTableName(),
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$table->getTableName());
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$duplicates = ipull($duplicates, 'id');
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foreach (PhabricatorLiskDAO::chunkSQL($duplicates) as $chunk) {
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queryfx(
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$conn_w,
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'DELETE FROM %T WHERE id IN (%Q)',
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$table->getTableName(),
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$chunk);
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}
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