Examples with RelDataTypeField org.apache.calcite.rel.type.RelDataTypeField used on opensource projects

Example 16 with RelDataTypeField

use of org.apache.calcite.rel.type.RelDataTypeField in project hive by apache.

the class HiveSubQRemoveRelBuilder method field.

/**
 * As {@link #field(int, int, int)}, but if {@code alias} is true, the method
 * may apply an alias to make sure that the field has the same name as in the
 * input frame. If no alias is applied the expression is definitely a
 * {@link RexInputRef}.
 */
private RexNode field(int inputCount, int inputOrdinal, int fieldOrdinal, boolean alias) {
    final Frame frame = peek_(inputCount, inputOrdinal);
    final RelNode input = frame.rel;
    final RelDataType rowType = input.getRowType();
    if (fieldOrdinal < 0 || fieldOrdinal > rowType.getFieldCount()) {
        throw new IllegalArgumentException("field ordinal [" + fieldOrdinal + "] out of range; input fields are: " + rowType.getFieldNames());
    }
    final RelDataTypeField field = rowType.getFieldList().get(fieldOrdinal);
    final int offset = inputOffset(inputCount, inputOrdinal);
    final RexInputRef ref = cluster.getRexBuilder().makeInputRef(field.getType(), offset + fieldOrdinal);
    final RelDataTypeField aliasField = frame.fields().get(fieldOrdinal);
    if (!alias || field.getName().equals(aliasField.getName())) {
        return ref;
    } else {
        return alias(ref, aliasField.getName());
    }
}

Example 17 with RelDataTypeField

use of org.apache.calcite.rel.type.RelDataTypeField in project herddb by diennea.

the class CalcitePlanner method planAggregate.

private PlannerOp planAggregate(EnumerableAggregate op, RelDataType rowType, boolean returnValues) {
    List<RelDataTypeField> fieldList = op.getRowType().getFieldList();
    List<AggregateCall> calls = op.getAggCallList();
    String[] fieldnames = new String[fieldList.size()];
    String[] aggtypes = new String[calls.size()];
    Column[] columns = new Column[fieldList.size()];
    List<Integer> groupedFiledsIndexes = op.getGroupSet().toList();
    List<List<Integer>> argLists = new ArrayList<>(calls.size());
    int i = 0;
    int idaggcall = 0;
    for (RelDataTypeField c : fieldList) {
        int type = convertToHerdType(c.getType());
        Column co = Column.column(c.getName(), type);
        columns[i] = co;
        fieldnames[i] = c.getName().toLowerCase();
        i++;
    }
    for (AggregateCall call : calls) {
        aggtypes[idaggcall++] = call.getAggregation().getName();
        argLists.add(call.getArgList());
    }
    PlannerOp input = convertRelNode(op.getInput(), null, returnValues);
    return new AggregateOp(input, fieldnames, columns, aggtypes, argLists, groupedFiledsIndexes);
}

Example 18 with RelDataTypeField

use of org.apache.calcite.rel.type.RelDataTypeField in project herddb by diennea.

the class CalcitePlanner method planValues.

private PlannerOp planValues(EnumerableValues op) {
    List<List<CompiledSQLExpression>> tuples = new ArrayList<>(op.getTuples().size());
    RelDataType rowType = op.getRowType();
    List<RelDataTypeField> fieldList = rowType.getFieldList();
    Column[] columns = new Column[fieldList.size()];
    for (ImmutableList<RexLiteral> tuple : op.getTuples()) {
        List<CompiledSQLExpression> row = new ArrayList<>(tuple.size());
        for (RexLiteral node : tuple) {
            CompiledSQLExpression exp = SQLExpressionCompiler.compileExpression(node);
            row.add(exp);
        }
        tuples.add(row);
    }
    int i = 0;
    String[] fieldNames = new String[fieldList.size()];
    for (RelDataTypeField field : fieldList) {
        Column col = Column.column(field.getName(), convertToHerdType(field.getType()));
        fieldNames[i] = field.getName();
        columns[i++] = col;
    }
    return new ValuesOp(manager.getNodeId(), fieldNames, columns, tuples);
}

Example 19 with RelDataTypeField

use of org.apache.calcite.rel.type.RelDataTypeField in project herddb by diennea.

the class CalcitePlanner method planEnumerableThetaJoin.

private PlannerOp planEnumerableThetaJoin(EnumerableThetaJoin op, RelDataType rowType) {
    PlannerOp left = convertRelNode(op.getLeft(), null, false);
    PlannerOp right = convertRelNode(op.getRight(), null, false);
    CompiledSQLExpression condition = SQLExpressionCompiler.compileExpression(op.getCondition());
    boolean generateNullsOnLeft = op.getJoinType().generatesNullsOnLeft();
    boolean generateNullsOnRight = op.getJoinType().generatesNullsOnRight();
    final RelDataType _rowType = rowType == null ? op.getRowType() : rowType;
    List<RelDataTypeField> fieldList = _rowType.getFieldList();
    Column[] columns = new Column[fieldList.size()];
    String[] fieldNames = new String[columns.length];
    int i = 0;
    for (RelDataTypeField field : fieldList) {
        Column col = Column.column(field.getName().toLowerCase(), convertToHerdType(field.getType()));
        fieldNames[i] = col.name;
        columns[i++] = col;
    }
    return new ThetaJoinOp(fieldNames, columns, left, right, condition, generateNullsOnLeft, generateNullsOnRight, false);
}

Example 20 with RelDataTypeField

use of org.apache.calcite.rel.type.RelDataTypeField in project herddb by diennea.

the class CalcitePlanner method planEnumerableJoin.

private PlannerOp planEnumerableJoin(EnumerableJoin op, RelDataType rowType) {
    // please note that EnumerableJoin has a condition field which actually is not useful
    PlannerOp left = convertRelNode(op.getLeft(), null, false);
    PlannerOp right = convertRelNode(op.getRight(), null, false);
    int[] leftKeys = op.getLeftKeys().toIntArray();
    int[] rightKeys = op.getRightKeys().toIntArray();
    boolean generateNullsOnLeft = op.getJoinType().generatesNullsOnLeft();
    boolean generateNullsOnRight = op.getJoinType().generatesNullsOnRight();
    final RelDataType _rowType = rowType == null ? op.getRowType() : rowType;
    List<RelDataTypeField> fieldList = _rowType.getFieldList();
    Column[] columns = new Column[fieldList.size()];
    String[] fieldNames = new String[columns.length];
    int i = 0;
    for (RelDataTypeField field : fieldList) {
        Column col = Column.column(field.getName().toLowerCase(), convertToHerdType(field.getType()));
        fieldNames[i] = col.name;
        columns[i++] = col;
    }
    return new JoinOp(fieldNames, columns, leftKeys, left, rightKeys, right, generateNullsOnLeft, generateNullsOnRight, false);
}