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

Example 1 with ProjectOp

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

the class CalcitePlanner method planUpdate.

private PlannerOp planUpdate(EnumerableTableModify dml, boolean returnValues) {
    PlannerOp input = convertRelNode(dml.getInput(), null, false);
    List<String> updateColumnList = dml.getUpdateColumnList();
    List<RexNode> sourceExpressionList = dml.getSourceExpressionList();
    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();
    List<CompiledSQLExpression> expressions = new ArrayList<>(sourceExpressionList.size());
    for (RexNode node : sourceExpressionList) {
        CompiledSQLExpression exp = SQLExpressionCompiler.compileExpression(node);
        expressions.add(exp);
    }
    RecordFunction function = new SQLRecordFunction(updateColumnList, table, expressions);
    UpdateStatement update = null;
    if (input instanceof TableScanOp) {
        update = new UpdateStatement(tableSpace, tableName, null, function, null);
    } else if (input instanceof FilterOp) {
        FilterOp filter = (FilterOp) input;
        if (filter.getInput() instanceof TableScanOp) {
            SQLRecordPredicate pred = new SQLRecordPredicate(table, null, filter.getCondition());
            update = new UpdateStatement(tableSpace, tableName, null, function, pred);
        }
    } else if (input instanceof ProjectOp) {
        ProjectOp proj = (ProjectOp) input;
        if (proj.getInput() instanceof TableScanOp) {
            update = new UpdateStatement(tableSpace, tableName, null, function, null);
        } else if (proj.getInput() instanceof FilterOp) {
            FilterOp filter = (FilterOp) proj.getInput();
            if (filter.getInput() instanceof TableScanOp) {
                SQLRecordPredicate pred = new SQLRecordPredicate(table, null, filter.getCondition());
                update = new UpdateStatement(tableSpace, tableName, null, function, pred);
            }
        } else if (proj.getInput() instanceof FilteredTableScanOp) {
            FilteredTableScanOp filter = (FilteredTableScanOp) proj.getInput();
            Predicate pred = filter.getPredicate();
            update = new UpdateStatement(tableSpace, tableName, null, function, pred);
        } else if (proj.getInput() instanceof BindableTableScanOp) {
            BindableTableScanOp filter = (BindableTableScanOp) proj.getInput();
            ScanStatement scan = filter.getStatement();
            if (scan.getComparator() == null && scan.getLimits() == null && scan.getTableDef() != null) {
                Predicate pred = scan.getPredicate();
                update = new UpdateStatement(tableSpace, tableName, null, function, pred);
            }
        }
    }
    if (update != null) {
        return new SimpleUpdateOp(update.setReturnValues(returnValues));
    } else {
        return new UpdateOp(tableSpace, tableName, input, returnValues, function);
    }
}

Example 2 with ProjectOp

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

the class CalcitePlanner method planProject.

private PlannerOp planProject(EnumerableProject op, RelDataType rowType) {
    PlannerOp input = convertRelNode(op.getInput(), null, false);
    final List<RexNode> projects = op.getProjects();
    final RelDataType _rowType = rowType == null ? op.getRowType() : rowType;
    Projection projection = buildProjection(projects, _rowType, false, null);
    return new ProjectOp(projection, input);
}