Examples of net.hydromatic.optiq.TranslatableTable

net.hydromatic.optiq.TranslatableTable
Extension to {@link Table} that specifies how it is to be translated toa {@link org.eigenbase.rel.RelNode planner node}.
It is optional for a Table to implement this interface. A Table that does not implement this interface, a Table will be converted to an EnumerableTableAccessRel. Generally a Table will implements this interface to create a particular subclass of RelNode, and also register rules that act on that particular subclass of RelNode.

    // Expand table macro if possible. It's more efficient than
    // TableFunctionRel.
    if (operator instanceof SqlUserDefinedTableMacro) {
      final SqlUserDefinedTableMacro udf =
          (SqlUserDefinedTableMacro) operator;
      final TranslatableTable table = udf.getTable(typeFactory,
        call.getOperandList());
      final RelDataType rowType = table.getRowType(typeFactory);
      RelOptTable relOptTable =
          RelOptTableImpl.create(null, rowType, (TranslatableTable) table);
      RelNode converted = toRel(relOptTable);
      bb.setRoot(converted, true);
      return;

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    // Expand table macro if possible. It's more efficient than
    // TableFunctionRel.
    if (operator instanceof SqlUserDefinedTableMacro) {
      final SqlUserDefinedTableMacro udf =
          (SqlUserDefinedTableMacro) operator;
      final TranslatableTable table = udf.getTable(typeFactory,
        call.getOperandList());
      final RelDataType rowType = table.getRowType(typeFactory);
      RelOptTable relOptTable =
          RelOptTableImpl.create(null, rowType, (TranslatableTable) table);
      RelNode converted = toRel(relOptTable);
      bb.setRoot(converted, true);
      return;

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    // Expand table macro if possible. It's more efficient than
    // TableFunctionRel.
    if (operator instanceof SqlUserDefinedTableMacro) {
      final SqlUserDefinedTableMacro udf =
          (SqlUserDefinedTableMacro) operator;
      final TranslatableTable table = udf.getTable(typeFactory,
        call.getOperandList());
      final RelDataType rowType = table.getRowType(typeFactory);
      RelOptTable relOptTable = RelOptTableImpl.create(null, rowType, table);
      RelNode converted = toRel(relOptTable);
      bb.setRoot(converted, true);
      return;
    }

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Related Classes of net.hydromatic.optiq.TranslatableTable

org.eigenbase.sql2rel.SqlToRelConverter

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