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

Example 1 with SqlCallBinding

use of org.apache.calcite.sql.SqlCallBinding in project calcite by apache.

the class SqlBetweenOperator method inferReturnType.

public RelDataType inferReturnType(SqlOperatorBinding opBinding) {
    SqlCallBinding callBinding = (SqlCallBinding) opBinding;
    ExplicitOperatorBinding newOpBinding = new ExplicitOperatorBinding(opBinding, collectOperandTypes(callBinding.getValidator(), callBinding.getScope(), callBinding.getCall()));
    return ReturnTypes.BOOLEAN_NULLABLE.inferReturnType(newOpBinding);
}

Example 2 with SqlCallBinding

use of org.apache.calcite.sql.SqlCallBinding in project calcite by apache.

the class SqlCastFunction method inferReturnType.

// ~ Methods ----------------------------------------------------------------
public RelDataType inferReturnType(SqlOperatorBinding opBinding) {
    assert opBinding.getOperandCount() == 2;
    RelDataType ret = opBinding.getOperandType(1);
    RelDataType firstType = opBinding.getOperandType(0);
    ret = opBinding.getTypeFactory().createTypeWithNullability(ret, firstType.isNullable());
    if (opBinding instanceof SqlCallBinding) {
        SqlCallBinding callBinding = (SqlCallBinding) opBinding;
        SqlNode operand0 = callBinding.operand(0);
        // to them using the type they are casted to.
        if (((operand0 instanceof SqlLiteral) && (((SqlLiteral) operand0).getValue() == null)) || (operand0 instanceof SqlDynamicParam)) {
            final SqlValidatorImpl validator = (SqlValidatorImpl) callBinding.getValidator();
            validator.setValidatedNodeType(operand0, ret);
        }
    }
    return ret;
}

Example 3 with SqlCallBinding

use of org.apache.calcite.sql.SqlCallBinding in project calcite by apache.

the class SqlOperatorBaseTest method testArgumentBounds.

/**
 * Test that calls all operators with all possible argument types, and for
 * each type, with a set of tricky values.
 */
@Test
public void testArgumentBounds() {
    if (!CalciteAssert.ENABLE_SLOW) {
        return;
    }
    final SqlValidatorImpl validator = (SqlValidatorImpl) tester.getValidator();
    final SqlValidatorScope scope = validator.getEmptyScope();
    final RelDataTypeFactory typeFactory = validator.getTypeFactory();
    final Builder builder = new Builder(typeFactory);
    builder.add0(SqlTypeName.BOOLEAN, true, false);
    builder.add0(SqlTypeName.TINYINT, 0, 1, -3, Byte.MAX_VALUE, Byte.MIN_VALUE);
    builder.add0(SqlTypeName.SMALLINT, 0, 1, -4, Short.MAX_VALUE, Short.MIN_VALUE);
    builder.add0(SqlTypeName.INTEGER, 0, 1, -2, Integer.MIN_VALUE, Integer.MAX_VALUE);
    builder.add0(SqlTypeName.BIGINT, 0, 1, -5, Integer.MAX_VALUE, Long.MAX_VALUE, Long.MIN_VALUE);
    builder.add1(SqlTypeName.VARCHAR, 11, "", " ", "hello world");
    builder.add1(SqlTypeName.CHAR, 5, "", "e", "hello");
    builder.add0(SqlTypeName.TIMESTAMP, 0L, DateTimeUtils.MILLIS_PER_DAY);
    for (SqlOperator op : SqlStdOperatorTable.instance().getOperatorList()) {
        switch(op.getKind()) {
            // can't handle the flag argument
            case TRIM:
            case EXISTS:
                continue;
        }
        switch(op.getSyntax()) {
            case SPECIAL:
                continue;
        }
        final SqlOperandTypeChecker typeChecker = op.getOperandTypeChecker();
        if (typeChecker == null) {
            continue;
        }
        final SqlOperandCountRange range = typeChecker.getOperandCountRange();
        for (int n = range.getMin(), max = range.getMax(); n <= max; n++) {
            final List<List<ValueType>> argValues = Collections.nCopies(n, builder.values);
            for (final List<ValueType> args : Linq4j.product(argValues)) {
                SqlNodeList nodeList = new SqlNodeList(SqlParserPos.ZERO);
                int nullCount = 0;
                for (ValueType arg : args) {
                    if (arg.value == null) {
                        ++nullCount;
                    }
                    nodeList.add(arg.node);
                }
                final SqlCall call = op.createCall(nodeList);
                final SqlCallBinding binding = new SqlCallBinding(validator, scope, call);
                if (!typeChecker.checkOperandTypes(binding, false)) {
                    continue;
                }
                final SqlPrettyWriter writer = new SqlPrettyWriter(CalciteSqlDialect.DEFAULT);
                op.unparse(writer, call, 0, 0);
                final String s = writer.toSqlString().toString();
                if (s.startsWith("OVERLAY(") || s.contains(" / 0") || s.matches("MOD\\(.*, 0\\)")) {
                    continue;
                }
                final Strong.Policy policy = Strong.policy(op.kind);
                try {
                    if (nullCount > 0 && policy == Strong.Policy.ANY) {
                        tester.checkNull(s);
                    } else {
                        final String query;
                        if (op instanceof SqlAggFunction) {
                            if (op.requiresOrder()) {
                                query = "SELECT " + s + " OVER () FROM (VALUES (1))";
                            } else {
                                query = "SELECT " + s + " FROM (VALUES (1))";
                            }
                        } else {
                            query = SqlTesterImpl.buildQuery(s);
                        }
                        tester.check(query, SqlTests.ANY_TYPE_CHECKER, SqlTests.ANY_PARAMETER_CHECKER, SqlTests.ANY_RESULT_CHECKER);
                    }
                } catch (Error e) {
                    System.out.println(s + ": " + e.getMessage());
                    throw e;
                } catch (Exception e) {
                    System.out.println("Failed: " + s + ": " + e.getMessage());
                }
            }
        }
    }
}

Example 4 with SqlCallBinding

use of org.apache.calcite.sql.SqlCallBinding in project calcite by apache.

the class SqlValidatorImpl method inferUnknownTypes.

protected void inferUnknownTypes(RelDataType inferredType, SqlValidatorScope scope, SqlNode node) {
    final SqlValidatorScope newScope = scopes.get(node);
    if (newScope != null) {
        scope = newScope;
    }
    boolean isNullLiteral = SqlUtil.isNullLiteral(node, false);
    if ((node instanceof SqlDynamicParam) || isNullLiteral) {
        if (inferredType.equals(unknownType)) {
            if (isNullLiteral) {
                throw newValidationError(node, RESOURCE.nullIllegal());
            } else {
                throw newValidationError(node, RESOURCE.dynamicParamIllegal());
            }
        }
        // REVIEW:  should dynamic parameter types always be nullable?
        RelDataType newInferredType = typeFactory.createTypeWithNullability(inferredType, true);
        if (SqlTypeUtil.inCharFamily(inferredType)) {
            newInferredType = typeFactory.createTypeWithCharsetAndCollation(newInferredType, inferredType.getCharset(), inferredType.getCollation());
        }
        setValidatedNodeType(node, newInferredType);
    } else if (node instanceof SqlNodeList) {
        SqlNodeList nodeList = (SqlNodeList) node;
        if (inferredType.isStruct()) {
            if (inferredType.getFieldCount() != nodeList.size()) {
                // bust out, and the error will be detected higher up
                return;
            }
        }
        int i = 0;
        for (SqlNode child : nodeList) {
            RelDataType type;
            if (inferredType.isStruct()) {
                type = inferredType.getFieldList().get(i).getType();
                ++i;
            } else {
                type = inferredType;
            }
            inferUnknownTypes(type, scope, child);
        }
    } else if (node instanceof SqlCase) {
        final SqlCase caseCall = (SqlCase) node;
        final RelDataType whenType = caseCall.getValueOperand() == null ? booleanType : unknownType;
        for (SqlNode sqlNode : caseCall.getWhenOperands().getList()) {
            inferUnknownTypes(whenType, scope, sqlNode);
        }
        RelDataType returnType = deriveType(scope, node);
        for (SqlNode sqlNode : caseCall.getThenOperands().getList()) {
            inferUnknownTypes(returnType, scope, sqlNode);
        }
        if (!SqlUtil.isNullLiteral(caseCall.getElseOperand(), false)) {
            inferUnknownTypes(returnType, scope, caseCall.getElseOperand());
        } else {
            setValidatedNodeType(caseCall.getElseOperand(), returnType);
        }
    } else if (node instanceof SqlCall) {
        final SqlCall call = (SqlCall) node;
        final SqlOperandTypeInference operandTypeInference = call.getOperator().getOperandTypeInference();
        final SqlCallBinding callBinding = new SqlCallBinding(this, scope, call);
        final List<SqlNode> operands = callBinding.operands();
        final RelDataType[] operandTypes = new RelDataType[operands.size()];
        if (operandTypeInference == null) {
            // TODO:  eventually should assert(operandTypeInference != null)
            // instead; for now just eat it
            Arrays.fill(operandTypes, unknownType);
        } else {
            operandTypeInference.inferOperandTypes(callBinding, inferredType, operandTypes);
        }
        for (int i = 0; i < operands.size(); ++i) {
            inferUnknownTypes(operandTypes[i], scope, operands.get(i));
        }
    }
}

Example 5 with SqlCallBinding

use of org.apache.calcite.sql.SqlCallBinding in project calcite by apache.

the class ProcedureNamespace method validateImpl.

// ~ Methods ----------------------------------------------------------------
public RelDataType validateImpl(RelDataType targetRowType) {
    validator.inferUnknownTypes(validator.unknownType, scope, call);
    final RelDataType type = validator.deriveTypeImpl(scope, call);
    final SqlOperator operator = call.getOperator();
    final SqlCallBinding callBinding = new SqlCallBinding(validator, scope, call);
    if (operator instanceof SqlUserDefinedTableFunction) {
        assert type.getSqlTypeName() == SqlTypeName.CURSOR : "User-defined table function should have CURSOR type, not " + type;
        final SqlUserDefinedTableFunction udf = (SqlUserDefinedTableFunction) operator;
        return udf.getRowType(validator.typeFactory, callBinding.operands());
    } else if (operator instanceof SqlUserDefinedTableMacro) {
        assert type.getSqlTypeName() == SqlTypeName.CURSOR : "User-defined table macro should have CURSOR type, not " + type;
        final SqlUserDefinedTableMacro udf = (SqlUserDefinedTableMacro) operator;
        return udf.getTable(validator.typeFactory, callBinding.operands()).getRowType(validator.typeFactory);
    }
    return type;
}