Examples with RexLiteral org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rex.RexLiteral used on opensource projects

Example 96 with RexLiteral

use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rex.RexLiteral in project samza by apache.

the class JoinTranslator method validateJoinQuery.

private void validateJoinQuery(LogicalJoin join, JoinInputNode.InputType inputTypeOnLeft, JoinInputNode.InputType inputTypeOnRight) {
    JoinRelType joinRelType = join.getJoinType();
    if (joinRelType.compareTo(JoinRelType.INNER) != 0 && joinRelType.compareTo(JoinRelType.LEFT) != 0 && joinRelType.compareTo(JoinRelType.RIGHT) != 0) {
        throw new SamzaException("Query with only INNER and LEFT/RIGHT OUTER join are supported.");
    }
    boolean isTablePosOnLeft = inputTypeOnLeft != JoinInputNode.InputType.STREAM;
    boolean isTablePosOnRight = inputTypeOnRight != JoinInputNode.InputType.STREAM;
    if (!isTablePosOnLeft && !isTablePosOnRight) {
        throw new SamzaException("Invalid query with both sides of join being denoted as 'stream'. " + "Stream-stream join is not yet supported. " + dumpRelPlanForNode(join));
    }
    if (isTablePosOnLeft && isTablePosOnRight) {
        throw new SamzaException("Invalid query with both sides of join being denoted as 'table'. " + dumpRelPlanForNode(join));
    }
    if (joinRelType.compareTo(JoinRelType.LEFT) == 0 && isTablePosOnLeft) {
        throw new SamzaException("Invalid query for outer left join. Left side of the join should be a 'stream' and " + "right side of join should be a 'table'. " + dumpRelPlanForNode(join));
    }
    if (joinRelType.compareTo(JoinRelType.RIGHT) == 0 && isTablePosOnRight) {
        throw new SamzaException("Invalid query for outer right join. Left side of the join should be a 'table' and " + "right side of join should be a 'stream'. " + dumpRelPlanForNode(join));
    }
    final List<RexNode> conjunctionList = new ArrayList<>();
    decomposeAndValidateConjunction(join.getCondition(), conjunctionList);
    if (conjunctionList.isEmpty()) {
        throw new SamzaException("Query results in a cross join, which is not supported. Please optimize the query." + " It is expected that the joins should include JOIN ON operator in the sql query.");
    }
    // TODO Not sure why we can not allow literal as part of the join condition will revisit this in another scope
    conjunctionList.forEach(rexNode -> rexNode.accept(new RexShuttle() {

        @Override
        public RexNode visitLiteral(RexLiteral literal) {
            throw new SamzaException("Join Condition can not allow literal " + literal.toString() + " join node" + join.getDigest());
        }
    }));
    final JoinInputNode.InputType rootTableInput = isTablePosOnRight ? inputTypeOnRight : inputTypeOnLeft;
    if (rootTableInput.compareTo(JoinInputNode.InputType.REMOTE_TABLE) != 0) {
        // it is not a remote table all is good we do not have to validate the project on key Column
        return;
    }
    /*
    For remote Table we need to validate The join Condition and The project that is above remote table scan.
     - As of today Filter need to be exactly one equi-join using the __key__ column (see SAMZA-2554)
     - The Project on the top of the remote table has to contain only simple input references to any of the column used in the join.
    */
    // First let's collect the ref of columns used by the join condition.
    List<RexInputRef> refCollector = new ArrayList<>();
    join.getCondition().accept(new RexShuttle() {

        @Override
        public RexNode visitInputRef(RexInputRef inputRef) {
            refCollector.add(inputRef);
            return inputRef;
        }
    });
    // start index of the Remote table within the Join Row
    final int tableStartIndex = isTablePosOnRight ? join.getLeft().getRowType().getFieldCount() : 0;
    // end index of the Remote table withing the Join Row
    final int tableEndIndex = isTablePosOnRight ? join.getRowType().getFieldCount() : join.getLeft().getRowType().getFieldCount();
    List<Integer> tableRefsIdx = refCollector.stream().map(x -> x.getIndex()).filter(// collect all the refs form table side
    x -> tableStartIndex <= x && x < tableEndIndex).map(// re-adjust the offset
    x -> x - tableStartIndex).sorted().collect(// we have a list with all the input from table side with 0 based index.
    Collectors.toList());
    if (conjunctionList.size() != 1 || tableRefsIdx.size() != 1) {
        // TODO We can relax this by allowing another filter to be evaluated post lookup see SAMZA-2554
        throw new SamzaException("Invalid query for join condition must contain exactly one predicate for remote table on __key__ column " + dumpRelPlanForNode(join));
    }
    // Validate the Project, follow each input and ensure that it is a simple ref with no rexCall in the way.
    if (!isValidRemoteJoinRef(tableRefsIdx.get(0), isTablePosOnRight ? join.getRight() : join.getLeft())) {
        throw new SamzaException("Invalid query for join condition can not have an expression and must be reference " + SamzaSqlRelMessage.KEY_NAME + " column " + dumpRelPlanForNode(join));
    }
}

Example 97 with RexLiteral

use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rex.RexLiteral in project flink by apache.

the class SqlFunctionConverter method visitOver.

@Override
public RexNode visitOver(RexOver over) {
    SqlOperator operator = convertOperator(over.getAggOperator());
    Preconditions.checkArgument(operator instanceof SqlAggFunction, "Expect converted operator to be an agg function, but got " + operator.toString());
    SqlAggFunction convertedAgg = (SqlAggFunction) operator;
    RexWindow window = over.getWindow();
    // let's not rely on the type of the RexOver created by Hive since it can be different from
    // what Flink expects
    RelDataType inferredType = builder.makeCall(convertedAgg, over.getOperands()).getType();
    // Hive may add literals to partition keys, remove them
    List<RexNode> partitionKeys = new ArrayList<>();
    for (RexNode hivePartitionKey : getPartKeys(window)) {
        if (!(hivePartitionKey instanceof RexLiteral)) {
            partitionKeys.add(hivePartitionKey);
        }
    }
    List<RexFieldCollation> convertedOrderKeys = new ArrayList<>(getOrderKeys(window).size());
    for (RexFieldCollation orderKey : getOrderKeys(window)) {
        convertedOrderKeys.add(new RexFieldCollation(orderKey.getKey().accept(this), orderKey.getValue()));
    }
    final boolean[] update = null;
    return HiveParserUtils.makeOver(builder, inferredType, convertedAgg, visitList(over.getOperands(), update), visitList(partitionKeys, update), convertedOrderKeys, window.getLowerBound(), window.getUpperBound(), window.isRows(), true, false, false, false);
}

Example 98 with RexLiteral

use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rex.RexLiteral in project calcite by apache.

the class EnumerableValues method implement.

public Result implement(EnumerableRelImplementor implementor, Prefer pref) {
    /*
          return Linq4j.asEnumerable(
              new Object[][] {
                  new Object[] {1, 2},
                  new Object[] {3, 4}
              });
*/
    final JavaTypeFactory typeFactory = (JavaTypeFactory) getCluster().getTypeFactory();
    final BlockBuilder builder = new BlockBuilder();
    final PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), pref.preferCustom());
    final Type rowClass = physType.getJavaRowType();
    final List<Expression> expressions = new ArrayList<Expression>();
    final List<RelDataTypeField> fields = rowType.getFieldList();
    for (List<RexLiteral> tuple : tuples) {
        final List<Expression> literals = new ArrayList<Expression>();
        for (Pair<RelDataTypeField, RexLiteral> pair : Pair.zip(fields, tuple)) {
            literals.add(RexToLixTranslator.translateLiteral(pair.right, pair.left.getType(), typeFactory, RexImpTable.NullAs.NULL));
        }
        expressions.add(physType.record(literals));
    }
    builder.add(Expressions.return_(null, Expressions.call(BuiltInMethod.AS_ENUMERABLE.method, Expressions.newArrayInit(Primitive.box(rowClass), expressions))));
    return implementor.result(physType, builder.toBlock());
}

Example 99 with RexLiteral

use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rex.RexLiteral in project calcite by apache.

the class ElasticsearchRules method isItem.

/**
 * Returns 'string' if it is a call to item['string'], null otherwise.
 */
static String isItem(RexCall call) {
    if (call.getOperator() != SqlStdOperatorTable.ITEM) {
        return null;
    }
    final RexNode op0 = call.getOperands().get(0);
    final RexNode op1 = call.getOperands().get(1);
    if (op0 instanceof RexInputRef && ((RexInputRef) op0).getIndex() == 0 && op1 instanceof RexLiteral && ((RexLiteral) op1).getValue2() instanceof String) {
        return (String) ((RexLiteral) op1).getValue2();
    }
    return null;
}

Example 100 with RexLiteral

use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rex.RexLiteral in project calcite by apache.

the class EnumerableWindow method implement.

public Result implement(EnumerableRelImplementor implementor, Prefer pref) {
    final JavaTypeFactory typeFactory = implementor.getTypeFactory();
    final EnumerableRel child = (EnumerableRel) getInput();
    final BlockBuilder builder = new BlockBuilder();
    final Result result = implementor.visitChild(this, 0, child, pref);
    Expression source_ = builder.append("source", result.block);
    final List<Expression> translatedConstants = new ArrayList<Expression>(constants.size());
    for (RexLiteral constant : constants) {
        translatedConstants.add(RexToLixTranslator.translateLiteral(constant, constant.getType(), typeFactory, RexImpTable.NullAs.NULL));
    }
    PhysType inputPhysType = result.physType;
    final int w = implementor.windowCount++;
    ParameterExpression prevStart = Expressions.parameter(int.class, builder.newName("prevStart" + w));
    ParameterExpression prevEnd = Expressions.parameter(int.class, builder.newName("prevEnd" + w));
    builder.add(Expressions.declare(0, prevStart, null));
    builder.add(Expressions.declare(0, prevEnd, null));
    for (int windowIdx = 0; windowIdx < groups.size(); windowIdx++) {
        Group group = groups.get(windowIdx);
        // Comparator:
        // final Comparator<JdbcTest.Employee> comparator =
        // new Comparator<JdbcTest.Employee>() {
        // public int compare(JdbcTest.Employee o1,
        // JdbcTest.Employee o2) {
        // return Integer.compare(o1.empid, o2.empid);
        // }
        // };
        final Expression comparator_ = builder.append("comparator", inputPhysType.generateComparator(group.collation()));
        Pair<Expression, Expression> partitionIterator = getPartitionIterator(builder, source_, inputPhysType, group, comparator_);
        final Expression collectionExpr = partitionIterator.left;
        final Expression iterator_ = partitionIterator.right;
        List<AggImpState> aggs = new ArrayList<AggImpState>();
        List<AggregateCall> aggregateCalls = group.getAggregateCalls(this);
        for (int aggIdx = 0; aggIdx < aggregateCalls.size(); aggIdx++) {
            AggregateCall call = aggregateCalls.get(aggIdx);
            aggs.add(new AggImpState(aggIdx, call, true));
        }
        // The output from this stage is the input plus the aggregate functions.
        final RelDataTypeFactory.Builder typeBuilder = typeFactory.builder();
        typeBuilder.addAll(inputPhysType.getRowType().getFieldList());
        for (AggImpState agg : aggs) {
            typeBuilder.add(agg.call.name, agg.call.type);
        }
        RelDataType outputRowType = typeBuilder.build();
        final PhysType outputPhysType = PhysTypeImpl.of(typeFactory, outputRowType, pref.prefer(result.format));
        final Expression list_ = builder.append("list", Expressions.new_(ArrayList.class, Expressions.call(collectionExpr, BuiltInMethod.COLLECTION_SIZE.method)), false);
        Pair<Expression, Expression> collationKey = getRowCollationKey(builder, inputPhysType, group, windowIdx);
        Expression keySelector = collationKey.left;
        Expression keyComparator = collationKey.right;
        final BlockBuilder builder3 = new BlockBuilder();
        final Expression rows_ = builder3.append("rows", Expressions.convert_(Expressions.call(iterator_, BuiltInMethod.ITERATOR_NEXT.method), Object[].class), false);
        builder3.add(Expressions.statement(Expressions.assign(prevStart, Expressions.constant(-1))));
        builder3.add(Expressions.statement(Expressions.assign(prevEnd, Expressions.constant(Integer.MAX_VALUE))));
        final BlockBuilder builder4 = new BlockBuilder();
        final ParameterExpression i_ = Expressions.parameter(int.class, builder4.newName("i"));
        final Expression row_ = builder4.append("row", RexToLixTranslator.convert(Expressions.arrayIndex(rows_, i_), inputPhysType.getJavaRowType()));
        final RexToLixTranslator.InputGetter inputGetter = new WindowRelInputGetter(row_, inputPhysType, result.physType.getRowType().getFieldCount(), translatedConstants);
        final RexToLixTranslator translator = RexToLixTranslator.forAggregation(typeFactory, builder4, inputGetter);
        final List<Expression> outputRow = new ArrayList<Expression>();
        int fieldCountWithAggResults = inputPhysType.getRowType().getFieldCount();
        for (int i = 0; i < fieldCountWithAggResults; i++) {
            outputRow.add(inputPhysType.fieldReference(row_, i, outputPhysType.getJavaFieldType(i)));
        }
        declareAndResetState(typeFactory, builder, result, windowIdx, aggs, outputPhysType, outputRow);
        // There are assumptions that minX==0. If ever change this, look for
        // frameRowCount, bounds checking, etc
        final Expression minX = Expressions.constant(0);
        final Expression partitionRowCount = builder3.append("partRows", Expressions.field(rows_, "length"));
        final Expression maxX = builder3.append("maxX", Expressions.subtract(partitionRowCount, Expressions.constant(1)));
        final Expression startUnchecked = builder4.append("start", translateBound(translator, i_, row_, minX, maxX, rows_, group, true, inputPhysType, comparator_, keySelector, keyComparator));
        final Expression endUnchecked = builder4.append("end", translateBound(translator, i_, row_, minX, maxX, rows_, group, false, inputPhysType, comparator_, keySelector, keyComparator));
        final Expression startX;
        final Expression endX;
        final Expression hasRows;
        if (group.isAlwaysNonEmpty()) {
            startX = startUnchecked;
            endX = endUnchecked;
            hasRows = Expressions.constant(true);
        } else {
            Expression startTmp = group.lowerBound.isUnbounded() || startUnchecked == i_ ? startUnchecked : builder4.append("startTmp", Expressions.call(null, BuiltInMethod.MATH_MAX.method, startUnchecked, minX));
            Expression endTmp = group.upperBound.isUnbounded() || endUnchecked == i_ ? endUnchecked : builder4.append("endTmp", Expressions.call(null, BuiltInMethod.MATH_MIN.method, endUnchecked, maxX));
            ParameterExpression startPe = Expressions.parameter(0, int.class, builder4.newName("startChecked"));
            ParameterExpression endPe = Expressions.parameter(0, int.class, builder4.newName("endChecked"));
            builder4.add(Expressions.declare(Modifier.FINAL, startPe, null));
            builder4.add(Expressions.declare(Modifier.FINAL, endPe, null));
            hasRows = builder4.append("hasRows", Expressions.lessThanOrEqual(startTmp, endTmp));
            builder4.add(Expressions.ifThenElse(hasRows, Expressions.block(Expressions.statement(Expressions.assign(startPe, startTmp)), Expressions.statement(Expressions.assign(endPe, endTmp))), Expressions.block(Expressions.statement(Expressions.assign(startPe, Expressions.constant(-1))), Expressions.statement(Expressions.assign(endPe, Expressions.constant(-1))))));
            startX = startPe;
            endX = endPe;
        }
        final BlockBuilder builder5 = new BlockBuilder(true, builder4);
        BinaryExpression rowCountWhenNonEmpty = Expressions.add(startX == minX ? endX : Expressions.subtract(endX, startX), Expressions.constant(1));
        final Expression frameRowCount;
        if (hasRows.equals(Expressions.constant(true))) {
            frameRowCount = builder4.append("totalRows", rowCountWhenNonEmpty);
        } else {
            frameRowCount = builder4.append("totalRows", Expressions.condition(hasRows, rowCountWhenNonEmpty, Expressions.constant(0)));
        }
        ParameterExpression actualStart = Expressions.parameter(0, int.class, builder5.newName("actualStart"));
        final BlockBuilder builder6 = new BlockBuilder(true, builder5);
        builder6.add(Expressions.statement(Expressions.assign(actualStart, startX)));
        for (final AggImpState agg : aggs) {
            agg.implementor.implementReset(agg.context, new WinAggResetContextImpl(builder6, agg.state, i_, startX, endX, hasRows, partitionRowCount, frameRowCount));
        }
        Expression lowerBoundCanChange = group.lowerBound.isUnbounded() && group.lowerBound.isPreceding() ? Expressions.constant(false) : Expressions.notEqual(startX, prevStart);
        Expression needRecomputeWindow = Expressions.orElse(lowerBoundCanChange, Expressions.lessThan(endX, prevEnd));
        BlockStatement resetWindowState = builder6.toBlock();
        if (resetWindowState.statements.size() == 1) {
            builder5.add(Expressions.declare(0, actualStart, Expressions.condition(needRecomputeWindow, startX, Expressions.add(prevEnd, Expressions.constant(1)))));
        } else {
            builder5.add(Expressions.declare(0, actualStart, null));
            builder5.add(Expressions.ifThenElse(needRecomputeWindow, resetWindowState, Expressions.statement(Expressions.assign(actualStart, Expressions.add(prevEnd, Expressions.constant(1))))));
        }
        if (lowerBoundCanChange instanceof BinaryExpression) {
            builder5.add(Expressions.statement(Expressions.assign(prevStart, startX)));
        }
        builder5.add(Expressions.statement(Expressions.assign(prevEnd, endX)));
        final BlockBuilder builder7 = new BlockBuilder(true, builder5);
        final DeclarationStatement jDecl = Expressions.declare(0, "j", actualStart);
        final PhysType inputPhysTypeFinal = inputPhysType;
        final Function<BlockBuilder, WinAggFrameResultContext> resultContextBuilder = getBlockBuilderWinAggFrameResultContextFunction(typeFactory, result, translatedConstants, comparator_, rows_, i_, startX, endX, minX, maxX, hasRows, frameRowCount, partitionRowCount, jDecl, inputPhysTypeFinal);
        final Function<AggImpState, List<RexNode>> rexArguments = new Function<AggImpState, List<RexNode>>() {

            public List<RexNode> apply(AggImpState agg) {
                List<Integer> argList = agg.call.getArgList();
                List<RelDataType> inputTypes = EnumUtils.fieldRowTypes(result.physType.getRowType(), constants, argList);
                List<RexNode> args = new ArrayList<RexNode>(inputTypes.size());
                for (int i = 0; i < argList.size(); i++) {
                    Integer idx = argList.get(i);
                    args.add(new RexInputRef(idx, inputTypes.get(i)));
                }
                return args;
            }
        };
        implementAdd(aggs, builder7, resultContextBuilder, rexArguments, jDecl);
        BlockStatement forBlock = builder7.toBlock();
        if (!forBlock.statements.isEmpty()) {
            // For instance, row_number does not use for loop to compute the value
            Statement forAggLoop = Expressions.for_(Arrays.asList(jDecl), Expressions.lessThanOrEqual(jDecl.parameter, endX), Expressions.preIncrementAssign(jDecl.parameter), forBlock);
            if (!hasRows.equals(Expressions.constant(true))) {
                forAggLoop = Expressions.ifThen(hasRows, forAggLoop);
            }
            builder5.add(forAggLoop);
        }
        if (implementResult(aggs, builder5, resultContextBuilder, rexArguments, true)) {
            builder4.add(Expressions.ifThen(Expressions.orElse(lowerBoundCanChange, Expressions.notEqual(endX, prevEnd)), builder5.toBlock()));
        }
        implementResult(aggs, builder4, resultContextBuilder, rexArguments, false);
        builder4.add(Expressions.statement(Expressions.call(list_, BuiltInMethod.COLLECTION_ADD.method, outputPhysType.record(outputRow))));
        builder3.add(Expressions.for_(Expressions.declare(0, i_, Expressions.constant(0)), Expressions.lessThan(i_, Expressions.field(rows_, "length")), Expressions.preIncrementAssign(i_), builder4.toBlock()));
        builder.add(Expressions.while_(Expressions.call(iterator_, BuiltInMethod.ITERATOR_HAS_NEXT.method), builder3.toBlock()));
        builder.add(Expressions.statement(Expressions.call(collectionExpr, BuiltInMethod.MAP_CLEAR.method)));
        // We're not assigning to "source". For each group, create a new
        // final variable called "source" or "sourceN".
        source_ = builder.append("source", Expressions.call(BuiltInMethod.AS_ENUMERABLE.method, list_));
        inputPhysType = outputPhysType;
    }
    // return Linq4j.asEnumerable(list);
    builder.add(Expressions.return_(null, source_));
    return implementor.result(inputPhysType, builder.toBlock());
}