Examples with SqlFunction org.apache.calcite.sql.SqlFunction used on opensource projects

Example 31 with SqlFunction

use of org.apache.calcite.sql.SqlFunction in project hazelcast by hazelcast.

the class RexToExpression method convertCall.

/**
 * Converts a {@link RexCall} to {@link Expression}.
 *
 * @param call the call to convert.
 * @return the resulting expression.
 * @throws QueryException if the given {@link RexCall} can't be
 *                        converted.
 */
@SuppressWarnings({ "checkstyle:CyclomaticComplexity", "checkstyle:MethodLength", "checkstyle:ReturnCount", "checkstyle:NPathComplexity", "checkstyle:MagicNumber" })
public static Expression<?> convertCall(RexCall call, Expression<?>[] operands) {
    SqlOperator operator = call.getOperator();
    QueryDataType resultType = HazelcastTypeUtils.toHazelcastType(call.getType());
    switch(operator.getKind()) {
        case DEFAULT:
            return ConstantExpression.create(null, resultType);
        case CAST:
            if (operands[0].getType().equals(resultType)) {
                // nullable ones after the conversion.
                return operands[0];
            }
            return CastExpression.create(operands[0], resultType);
        case AND:
            return AndPredicate.create(operands);
        case OR:
            return OrPredicate.create(operands);
        case NOT:
            return NotPredicate.create(operands[0]);
        case PLUS:
            return PlusFunction.create(operands[0], operands[1], resultType);
        case MINUS:
            return MinusFunction.create(operands[0], operands[1], resultType);
        case TIMES:
            return MultiplyFunction.create(operands[0], operands[1], resultType);
        case DIVIDE:
            return DivideFunction.create(operands[0], operands[1], resultType);
        case MOD:
            return RemainderFunction.create(operands[0], operands[1], resultType);
        case MINUS_PREFIX:
            return UnaryMinusFunction.create(operands[0], resultType);
        case PLUS_PREFIX:
            return operands[0];
        case FLOOR:
            return FloorCeilFunction.create(operands[0], resultType, false);
        case CEIL:
            return FloorCeilFunction.create(operands[0], resultType, true);
        case EQUALS:
            return ComparisonPredicate.create(operands[0], operands[1], ComparisonMode.EQUALS);
        case NOT_EQUALS:
            return ComparisonPredicate.create(operands[0], operands[1], ComparisonMode.NOT_EQUALS);
        case GREATER_THAN:
            return ComparisonPredicate.create(operands[0], operands[1], ComparisonMode.GREATER_THAN);
        case GREATER_THAN_OR_EQUAL:
            return ComparisonPredicate.create(operands[0], operands[1], ComparisonMode.GREATER_THAN_OR_EQUAL);
        case LESS_THAN:
            return ComparisonPredicate.create(operands[0], operands[1], ComparisonMode.LESS_THAN);
        case LESS_THAN_OR_EQUAL:
            return ComparisonPredicate.create(operands[0], operands[1], ComparisonMode.LESS_THAN_OR_EQUAL);
        case SEARCH:
            return SearchPredicate.create(operands[0], operands[1]);
        case IS_TRUE:
            return IsTruePredicate.create(operands[0]);
        case IS_NOT_TRUE:
            return IsNotTruePredicate.create(operands[0]);
        case IS_FALSE:
            return IsFalsePredicate.create(operands[0]);
        case IS_NOT_FALSE:
            return IsNotFalsePredicate.create(operands[0]);
        case IS_NULL:
            return IsNullPredicate.create(operands[0]);
        case IS_NOT_NULL:
            return IsNotNullPredicate.create(operands[0]);
        case LIKE:
            boolean negated = ((HazelcastLikeOperator) operator).isNegated();
            Expression<?> escape1 = operands.length == 2 ? null : operands[2];
            return LikeFunction.create(operands[0], operands[1], escape1, negated);
        case TRIM:
            assert operands.length == 3;
            assert operands[0] instanceof SymbolExpression;
            SqlTrimFunction.Flag trimFlag = ((SymbolExpression) operands[0]).getSymbol();
            return TrimFunction.create(operands[2], operands[1], trimFlag.getLeft() == 1, trimFlag.getRight() == 1);
        case EXTRACT:
            assert operands.length == 2;
            assert operands[0] instanceof SymbolExpression;
            TimeUnitRange field = ((SymbolExpression) operands[0]).getSymbol();
            ExtractField extractField = convertField(field);
            return ExtractFunction.create(operands[1], extractField);
        case CASE:
            return CaseExpression.create(operands);
        case COALESCE:
            return CaseExpression.coalesce(operands);
        case NULLIF:
            return CaseExpression.nullif(operands[0], operands[1]);
        case OTHER:
            if (operator == HazelcastSqlOperatorTable.CONCAT) {
                assert operands.length == 2;
                return ConcatFunction.create(operands[0], operands[1]);
            }
            if (operator == HazelcastSqlOperatorTable.NOT_LIKE) {
                assert ((HazelcastLikeOperator) operator).isNegated();
                Expression<?> escape2 = operands.length == 2 ? null : operands[2];
                return LikeFunction.create(operands[0], operands[1], escape2, true);
            }
            break;
        case POSITION:
        case OTHER_FUNCTION:
            SqlFunction function = (SqlFunction) operator;
            // Math.
            if (function == HazelcastSqlOperatorTable.POWER) {
                assert operands.length == 2;
                return DoubleBiFunction.create(operands[0], operands[1], DoubleBiFunction.POWER);
            } else if (function == HazelcastSqlOperatorTable.SQUARE) {
                return DoubleFunction.create(operands[0], DoubleFunction.SQUARE);
            } else if (function == HazelcastSqlOperatorTable.SQRT) {
                return DoubleFunction.create(operands[0], DoubleFunction.SQRT);
            } else if (function == HazelcastSqlOperatorTable.CBRT) {
                return DoubleFunction.create(operands[0], DoubleFunction.CBRT);
            } else if (function == HazelcastSqlOperatorTable.COS) {
                return DoubleFunction.create(operands[0], DoubleFunction.COS);
            } else if (function == HazelcastSqlOperatorTable.SIN) {
                return DoubleFunction.create(operands[0], DoubleFunction.SIN);
            } else if (function == HazelcastSqlOperatorTable.TAN) {
                return DoubleFunction.create(operands[0], DoubleFunction.TAN);
            } else if (function == HazelcastSqlOperatorTable.COT) {
                return DoubleFunction.create(operands[0], DoubleFunction.COT);
            } else if (function == HazelcastSqlOperatorTable.ACOS) {
                return DoubleFunction.create(operands[0], DoubleFunction.ACOS);
            } else if (function == HazelcastSqlOperatorTable.ASIN) {
                return DoubleFunction.create(operands[0], DoubleFunction.ASIN);
            } else if (function == HazelcastSqlOperatorTable.ATAN) {
                return DoubleFunction.create(operands[0], DoubleFunction.ATAN);
            } else if (function == HazelcastSqlOperatorTable.ATAN2) {
                assert operands.length == 2;
                return DoubleBiFunction.create(operands[0], operands[1], DoubleBiFunction.ATAN2);
            } else if (function == HazelcastSqlOperatorTable.EXP) {
                return DoubleFunction.create(operands[0], DoubleFunction.EXP);
            } else if (function == HazelcastSqlOperatorTable.LN) {
                return DoubleFunction.create(operands[0], DoubleFunction.LN);
            } else if (function == HazelcastSqlOperatorTable.LOG10) {
                return DoubleFunction.create(operands[0], DoubleFunction.LOG10);
            } else if (function == HazelcastSqlOperatorTable.RAND) {
                return RandFunction.create(operands.length == 0 ? null : operands[0]);
            } else if (function == HazelcastSqlOperatorTable.ABS) {
                return AbsFunction.create(operands[0], resultType);
            } else if (function == SqlStdOperatorTable.PI) {
                return ConstantExpression.create(Math.PI, resultType);
            } else if (function == HazelcastSqlOperatorTable.SIGN) {
                return SignFunction.create(operands[0], resultType);
            } else if (function == HazelcastSqlOperatorTable.DEGREES) {
                return DoubleFunction.create(operands[0], DoubleFunction.DEGREES);
            } else if (function == HazelcastSqlOperatorTable.RADIANS) {
                return DoubleFunction.create(operands[0], DoubleFunction.RADIANS);
            } else if (function == HazelcastSqlOperatorTable.ROUND) {
                return RoundTruncateFunction.create(operands[0], operands.length == 1 ? null : operands[1], resultType, false);
            } else if (function == HazelcastSqlOperatorTable.TRUNCATE) {
                return RoundTruncateFunction.create(operands[0], operands.length == 1 ? null : operands[1], resultType, true);
            }
            if (function == CHAR_LENGTH || function == CHARACTER_LENGTH || function == LENGTH) {
                return CharLengthFunction.create(operands[0]);
            } else if (function == HazelcastSqlOperatorTable.UPPER) {
                return UpperFunction.create(operands[0]);
            } else if (function == HazelcastSqlOperatorTable.LOWER) {
                return LowerFunction.create(operands[0]);
            } else if (function == HazelcastSqlOperatorTable.INITCAP) {
                return InitcapFunction.create(operands[0]);
            } else if (function == HazelcastSqlOperatorTable.ASCII) {
                return AsciiFunction.create(operands[0]);
            } else if (function == HazelcastSqlOperatorTable.SUBSTRING) {
                Expression<?> input = operands[0];
                Expression<?> start = operands[1];
                Expression<?> length = operands.length > 2 ? operands[2] : null;
                return SubstringFunction.create(input, start, length);
            } else if (function == HazelcastSqlOperatorTable.LTRIM) {
                return TrimFunction.create(operands[0], null, true, false);
            } else if (function == HazelcastSqlOperatorTable.RTRIM) {
                return TrimFunction.create(operands[0], null, false, true);
            } else if (function == HazelcastSqlOperatorTable.BTRIM) {
                return TrimFunction.create(operands[0], null, true, true);
            } else if (function == HazelcastSqlOperatorTable.REPLACE) {
                return ReplaceFunction.create(operands[0], operands[1], operands[2]);
            } else if (function == HazelcastSqlOperatorTable.POSITION) {
                Expression<?> start = operands.length > 2 ? operands[2] : null;
                return PositionFunction.create(operands[0], operands[1], start);
            } else if (function == HazelcastSqlOperatorTable.TO_TIMESTAMP_TZ) {
                return ToTimestampTzFunction.create(operands[0]);
            } else if (function == HazelcastSqlOperatorTable.TO_EPOCH_MILLIS) {
                return ToEpochMillisFunction.create(operands[0]);
            } else if (function == HazelcastSqlOperatorTable.CONCAT_WS) {
                return ConcatWSFunction.create(operands);
            } else if (function == HazelcastSqlOperatorTable.JSON_QUERY) {
                final SqlJsonQueryWrapperBehavior wrapperBehavior = ((SymbolExpression) operands[2]).getSymbol();
                final SqlJsonQueryEmptyOrErrorBehavior onEmpty = ((SymbolExpression) operands[3]).getSymbol();
                final SqlJsonQueryEmptyOrErrorBehavior onError = ((SymbolExpression) operands[4]).getSymbol();
                return JsonQueryFunction.create(operands[0], operands[1], wrapperBehavior, onEmpty, onError);
            } else if (function == HazelcastJsonParseFunction.INSTANCE) {
                return JsonParseFunction.create(operands[0]);
            } else if (function == HazelcastSqlOperatorTable.JSON_VALUE) {
                final SqlJsonValueEmptyOrErrorBehavior onEmpty = ((SymbolExpression) operands[4]).getSymbol();
                final SqlJsonValueEmptyOrErrorBehavior onError = ((SymbolExpression) operands[5]).getSymbol();
                return JsonValueFunction.create(operands[0], operands[1], operands[2], operands[3], resultType, onEmpty, onError);
            } else if (function == HazelcastSqlOperatorTable.JSON_OBJECT) {
                final SqlJsonConstructorNullClause nullClause = ((SymbolExpression) operands[0]).getSymbol();
                final Expression<?>[] fields = Arrays.copyOfRange(operands, 1, operands.length);
                return JsonObjectFunction.create(fields, nullClause);
            } else if (function == HazelcastSqlOperatorTable.JSON_ARRAY) {
                final SqlJsonConstructorNullClause nullClause = ((SymbolExpression) operands[0]).getSymbol();
                final Expression<?>[] fields = Arrays.copyOfRange(operands, 1, operands.length);
                return JsonArrayFunction.create(fields, nullClause);
            }
            break;
        default:
            break;
    }
    throw QueryException.error("Unsupported operator: " + operator);
}

Example 32 with SqlFunction

use of org.apache.calcite.sql.SqlFunction in project druid by druid-io.

the class ExpressionsTest method testRoundWithInvalidArgument.

@Test
public void testRoundWithInvalidArgument() {
    final SqlFunction roundFunction = new RoundOperatorConversion().calciteOperator();
    if (!NullHandling.sqlCompatible()) {
        expectException(IAE.class, "The first argument to the function[round] should be integer or double type but got the type: STRING");
    }
    testHelper.testExpression(roundFunction, testHelper.makeInputRef("s"), DruidExpression.ofExpression(ColumnType.STRING, DruidExpression.functionCall("round"), ImmutableList.of(DruidExpression.ofColumn(ColumnType.STRING, "s"))), NullHandling.sqlCompatible() ? null : "IAE Exception");
}

Example 33 with SqlFunction

use of org.apache.calcite.sql.SqlFunction in project druid by druid-io.

the class ExpressionsTest method testRound.

@Test
public void testRound() {
    final SqlFunction roundFunction = new RoundOperatorConversion().calciteOperator();
    testHelper.testExpression(roundFunction, testHelper.makeInputRef("a"), DruidExpression.ofExpression(ColumnType.LONG, DruidExpression.functionCall("round"), ImmutableList.of(DruidExpression.ofColumn(ColumnType.LONG, "a"))), 10L);
    testHelper.testExpression(roundFunction, testHelper.makeInputRef("b"), DruidExpression.ofExpression(ColumnType.LONG, DruidExpression.functionCall("round"), ImmutableList.of(DruidExpression.ofColumn(ColumnType.LONG, "b"))), 25L);
    testHelper.testExpressionString(roundFunction, ImmutableList.of(testHelper.makeInputRef("b"), testHelper.makeLiteral(-1)), DruidExpression.ofExpression(ColumnType.LONG, DruidExpression.functionCall("round"), ImmutableList.of(DruidExpression.ofColumn(ColumnType.LONG, "b"), DruidExpression.ofLiteral(ColumnType.LONG, DruidExpression.numberLiteral(-1)))), 30L);
    testHelper.testExpression(roundFunction, testHelper.makeInputRef("x"), DruidExpression.ofExpression(ColumnType.FLOAT, DruidExpression.functionCall("round"), ImmutableList.of(DruidExpression.ofColumn(ColumnType.FLOAT, "x"))), 2.0);
    testHelper.testExpressionString(roundFunction, ImmutableList.of(testHelper.makeInputRef("x"), testHelper.makeLiteral(1)), DruidExpression.ofExpression(ColumnType.FLOAT, DruidExpression.functionCall("round"), ImmutableList.of(DruidExpression.ofColumn(ColumnType.FLOAT, "x"), DruidExpression.ofLiteral(ColumnType.LONG, DruidExpression.numberLiteral(1)))), 2.3);
    testHelper.testExpression(roundFunction, testHelper.makeInputRef("y"), DruidExpression.ofExpression(ColumnType.LONG, DruidExpression.functionCall("round"), ImmutableList.of(DruidExpression.ofColumn(ColumnType.LONG, "y"))), 3.0);
    testHelper.testExpression(roundFunction, testHelper.makeInputRef("z"), DruidExpression.ofExpression(ColumnType.FLOAT, DruidExpression.functionCall("round"), ImmutableList.of(DruidExpression.ofColumn(ColumnType.FLOAT, "z"))), -2.0);
}

Example 34 with SqlFunction

use of org.apache.calcite.sql.SqlFunction in project flink by apache.

the class SqlValidatorImpl method handleUnresolvedFunction.

public CalciteException handleUnresolvedFunction(SqlCall call, SqlFunction unresolvedFunction, List<RelDataType> argTypes, List<String> argNames) {
    // For builtins, we can give a better error message
    final List<SqlOperator> overloads = new ArrayList<>();
    opTab.lookupOperatorOverloads(unresolvedFunction.getNameAsId(), null, SqlSyntax.FUNCTION, overloads, catalogReader.nameMatcher());
    if (overloads.size() == 1) {
        SqlFunction fun = (SqlFunction) overloads.get(0);
        if ((fun.getSqlIdentifier() == null) && (fun.getSyntax() != SqlSyntax.FUNCTION_ID)) {
            final int expectedArgCount = fun.getOperandCountRange().getMin();
            throw newValidationError(call, RESOURCE.invalidArgCount(call.getOperator().getName(), expectedArgCount));
        }
    }
    AssignableOperandTypeChecker typeChecking = new AssignableOperandTypeChecker(argTypes, argNames);
    String signature = typeChecking.getAllowedSignatures(unresolvedFunction, unresolvedFunction.getName());
    throw newValidationError(call, RESOURCE.validatorUnknownFunction(signature));
}

Example 35 with SqlFunction

use of org.apache.calcite.sql.SqlFunction in project flink by apache.

the class FunctionCatalogOperatorTable method convertToBridgingSqlFunction.

private Optional<SqlFunction> convertToBridgingSqlFunction(@Nullable SqlFunctionCategory category, ContextResolvedFunction resolvedFunction) {
    final FunctionDefinition definition = resolvedFunction.getDefinition();
    if (!verifyFunctionKind(category, resolvedFunction)) {
        return Optional.empty();
    }
    final TypeInference typeInference;
    try {
        typeInference = definition.getTypeInference(dataTypeFactory);
    } catch (Throwable t) {
        throw new ValidationException(String.format("An error occurred in the type inference logic of function '%s'.", resolvedFunction), t);
    }
    if (typeInference.getOutputTypeStrategy() == TypeStrategies.MISSING) {
        return Optional.empty();
    }
    final SqlFunction function;
    if (definition.getKind() == FunctionKind.AGGREGATE || definition.getKind() == FunctionKind.TABLE_AGGREGATE) {
        function = BridgingSqlAggFunction.of(dataTypeFactory, typeFactory, SqlKind.OTHER_FUNCTION, resolvedFunction, typeInference);
    } else {
        function = BridgingSqlFunction.of(dataTypeFactory, typeFactory, SqlKind.OTHER_FUNCTION, resolvedFunction, typeInference);
    }
    return Optional.of(function);
}