Expanded class hierarchy of SelectQuery_pgsql

class \Query implements QueryPlaceholderInterface
- class \DeleteQuery implements QueryConditionInterface
- class \InsertQuery
- class \MergeQuery implements QueryConditionInterface
- class \SelectQuery implements SelectQueryInterface
  - class \SelectQuery_pgsql
  - class \SelectQuery_sqlite
- class \TruncateQuery
- class \UpdateQuery implements QueryConditionInterface