Examples with DeleteOp herddb.model.planner.DeleteOp used on opensource projects

Example 1 with DeleteOp

use of herddb.model.planner.DeleteOp in project herddb by diennea.

the class CalcitePlanner method planDelete.

private PlannerOp planDelete(EnumerableTableModify dml) {
    PlannerOp input = convertRelNode(dml.getInput(), null, false);
    final String tableSpace = dml.getTable().getQualifiedName().get(0);
    final String tableName = dml.getTable().getQualifiedName().get(1);
    final TableImpl tableImpl = (TableImpl) dml.getTable().unwrap(org.apache.calcite.schema.Table.class);
    Table table = tableImpl.tableManager.getTable();
    DeleteStatement delete = null;
    if (input instanceof TableScanOp) {
        delete = new DeleteStatement(tableSpace, tableName, null, null);
    } else if (input instanceof FilterOp) {
        FilterOp filter = (FilterOp) input;
        if (filter.getInput() instanceof TableScanOp) {
            SQLRecordPredicate pred = new SQLRecordPredicate(table, null, filter.getCondition());
            delete = new DeleteStatement(tableSpace, tableName, null, pred);
        }
    } else if (input instanceof BindableTableScanOp) {
        BindableTableScanOp filter = (BindableTableScanOp) input;
        Predicate pred = filter.getStatement().getPredicate();
        delete = new DeleteStatement(tableSpace, tableName, null, pred);
    }
    if (delete != null) {
        return new SimpleDeleteOp(delete);
    } else {
        return new DeleteOp(tableSpace, tableName, input);
    }
}