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+* See
+  https://groups.google.com/d/msg/sqlparse/huz9lKXt0Lc/11ybIKPJWbUJ
+  for some interesting hints and suggestions.
 * Provide a function to replace tokens. See this thread: https://groups.google.com/d/msg/sqlparse/5xmBL2UKqX4/ZX9z_peve-AJ
 * Fix bugs on issue tracker.
 * Document filter stack and processing phases.