Examples with ModifiableView org.apache.calcite.schema.ModifiableView used on opensource projects

Example 1 with ModifiableView

use of org.apache.calcite.schema.ModifiableView in project calcite by apache.

the class SqlToRelConverter method createModify.

/**
 * Creates a relational expression to modify a table or modifiable view.
 */
private RelNode createModify(RelOptTable targetTable, RelNode source) {
    final ModifiableTable modifiableTable = targetTable.unwrap(ModifiableTable.class);
    if (modifiableTable != null && modifiableTable == targetTable.unwrap(Table.class)) {
        return modifiableTable.toModificationRel(cluster, targetTable, catalogReader, source, LogicalTableModify.Operation.INSERT, null, null, false);
    }
    final ModifiableView modifiableView = targetTable.unwrap(ModifiableView.class);
    if (modifiableView != null) {
        final Table delegateTable = modifiableView.getTable();
        final RelDataType delegateRowType = delegateTable.getRowType(typeFactory);
        final RelOptTable delegateRelOptTable = RelOptTableImpl.create(null, delegateRowType, delegateTable, modifiableView.getTablePath());
        final RelNode newSource = createSource(targetTable, source, modifiableView, delegateRowType);
        return createModify(delegateRelOptTable, newSource);
    }
    return LogicalTableModify.create(targetTable, catalogReader, source, LogicalTableModify.Operation.INSERT, null, null, false);
}