# Anti-patterns
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This section covers common anti-patterns that can negatively impact Amazon DocumentDB performance.

**Topics**
+ [Compound index anti-pattern more than 3 attributes](anti-pattern-compound-index.md)
+ [Long running queries](anti-pattern-long-running-queries.md)
+ [Low used and redundant indexes](anti-pattern-low-used-redundant-indexes.md)
+ [Multi-key indexes with large arrays](anti-pattern-multi-key-indexes.md)