Examples with QueryLiteral org.hibernate.sql.ast.tree.expression.QueryLiteral used on opensource projects

Example 1 with QueryLiteral

use of org.hibernate.sql.ast.tree.expression.QueryLiteral in project hibernate-orm by hibernate.

the class CteInsertHandler method execute.

@Override
public int execute(DomainQueryExecutionContext executionContext) {
    final SqmInsertStatement<?> sqmInsertStatement = getSqmStatement();
    final SessionFactoryImplementor factory = executionContext.getSession().getFactory();
    final EntityPersister entityDescriptor = getEntityDescriptor().getEntityPersister();
    final String explicitDmlTargetAlias;
    if (sqmInsertStatement.getTarget().getExplicitAlias() == null) {
        explicitDmlTargetAlias = "dml_target";
    } else {
        explicitDmlTargetAlias = sqmInsertStatement.getTarget().getExplicitAlias();
    }
    final MultiTableSqmMutationConverter sqmConverter = new MultiTableSqmMutationConverter(entityDescriptor, sqmInsertStatement, sqmInsertStatement.getTarget(), explicitDmlTargetAlias, domainParameterXref, executionContext.getQueryOptions(), executionContext.getSession().getLoadQueryInfluencers(), executionContext.getQueryParameterBindings(), factory);
    final TableGroup insertingTableGroup = sqmConverter.getMutatingTableGroup();
    final Map<SqmParameter<?>, List<List<JdbcParameter>>> parameterResolutions;
    if (domainParameterXref.getSqmParameterCount() == 0) {
        parameterResolutions = Collections.emptyMap();
    } else {
        parameterResolutions = new IdentityHashMap<>();
    }
    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    // visit the insertion target using our special converter, collecting
    // information about the target paths
    final int size = sqmStatement.getInsertionTargetPaths().size();
    final List<Map.Entry<SqmCteTableColumn, Assignment>> targetPathColumns = new ArrayList<>(size);
    final List<SqmCteTableColumn> targetPathSqmCteColumns = new ArrayList<>(size);
    final Map<SqmParameter<?>, MappingModelExpressible<?>> paramTypeResolutions = new LinkedHashMap<>();
    final NamedTableReference entityTableReference = new NamedTableReference(cteTable.getCteName(), TemporaryTable.DEFAULT_ALIAS, true, sessionFactory);
    final InsertStatement insertStatement = new InsertStatement(entityTableReference);
    final BaseSqmToSqlAstConverter.AdditionalInsertValues additionalInsertValues = sqmConverter.visitInsertionTargetPaths((assignable, columnReferences) -> {
        // Find a matching cte table column and set that at the current index
        for (SqmCteTableColumn column : cteTable.getColumns()) {
            if (column.getType() == ((Expression) assignable).getExpressionType()) {
                insertStatement.addTargetColumnReferences(columnReferences);
                targetPathSqmCteColumns.add(column);
                targetPathColumns.add(new AbstractMap.SimpleEntry<>(column, new Assignment(assignable, (Expression) assignable)));
                return;
            }
        }
        throw new IllegalStateException("Couldn't find matching cte column for: " + ((Expression) assignable).getExpressionType());
    }, sqmInsertStatement, entityDescriptor, insertingTableGroup, (sqmParameter, mappingType, jdbcParameters) -> {
        parameterResolutions.computeIfAbsent(sqmParameter, k -> new ArrayList<>(1)).add(jdbcParameters);
        paramTypeResolutions.put(sqmParameter, mappingType);
    });
    final boolean assignsId = targetPathSqmCteColumns.contains(cteTable.getColumns().get(0));
    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    // Create the statement that represent the source for the entity cte
    final Stack<SqlAstProcessingState> processingStateStack = sqmConverter.getProcessingStateStack();
    final SqlAstProcessingState oldState = processingStateStack.pop();
    final Statement queryStatement;
    if (sqmInsertStatement instanceof SqmInsertSelectStatement) {
        final QueryPart queryPart = sqmConverter.visitQueryPart(((SqmInsertSelectStatement<?>) sqmInsertStatement).getSelectQueryPart());
        queryPart.visitQuerySpecs(querySpec -> {
            // in which case we will fill the row_number column instead of the id column
            if (additionalInsertValues.applySelections(querySpec, sessionFactory)) {
                final SqmCteTableColumn rowNumberColumn = cteTable.getColumns().get(cteTable.getColumns().size() - 1);
                final ColumnReference columnReference = new ColumnReference((String) null, rowNumberColumn.getColumnName(), false, null, null, (JdbcMapping) rowNumberColumn.getType(), sessionFactory);
                insertStatement.getTargetColumnReferences().set(insertStatement.getTargetColumnReferences().size() - 1, columnReference);
                targetPathSqmCteColumns.set(targetPathSqmCteColumns.size() - 1, rowNumberColumn);
            }
            if (!assignsId && entityDescriptor.getIdentifierGenerator() instanceof PostInsertIdentifierGenerator) {
                final BasicType<Integer> rowNumberType = sessionFactory.getTypeConfiguration().getBasicTypeForJavaType(Integer.class);
                querySpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, new Over<>(new SelfRenderingFunctionSqlAstExpression("row_number", (appender, args, walker) -> appender.appendSql("row_number()"), Collections.emptyList(), rowNumberType, rowNumberType), Collections.emptyList(), Collections.emptyList())));
            }
        });
        queryStatement = new SelectStatement(queryPart);
    } else {
        final List<SqmValues> sqmValuesList = ((SqmInsertValuesStatement<?>) sqmInsertStatement).getValuesList();
        final List<Values> valuesList = new ArrayList<>(sqmValuesList.size());
        for (SqmValues sqmValues : sqmValuesList) {
            final Values values = sqmConverter.visitValues(sqmValues);
            additionalInsertValues.applyValues(values);
            valuesList.add(values);
        }
        final QuerySpec querySpec = new QuerySpec(true);
        final NavigablePath navigablePath = new NavigablePath(entityDescriptor.getRootPathName());
        final List<String> columnNames = new ArrayList<>(targetPathColumns.size());
        for (Map.Entry<SqmCteTableColumn, Assignment> entry : targetPathColumns) {
            for (ColumnReference columnReference : entry.getValue().getAssignable().getColumnReferences()) {
                columnNames.add(columnReference.getColumnExpression());
                querySpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, columnReference));
            }
        }
        final ValuesTableGroup valuesTableGroup = new ValuesTableGroup(navigablePath, entityDescriptor.getEntityPersister(), valuesList, insertingTableGroup.getPrimaryTableReference().getIdentificationVariable(), columnNames, true, factory);
        querySpec.getFromClause().addRoot(valuesTableGroup);
        queryStatement = new SelectStatement(querySpec);
    }
    processingStateStack.push(oldState);
    sqmConverter.pruneTableGroupJoins();
    if (!assignsId && entityDescriptor.getIdentifierGenerator() instanceof PostInsertIdentifierGenerator) {
        // Add the row number to the assignments
        final SqmCteTableColumn rowNumberColumn = cteTable.getColumns().get(cteTable.getColumns().size() - 1);
        final ColumnReference columnReference = new ColumnReference((String) null, rowNumberColumn.getColumnName(), false, null, null, (JdbcMapping) rowNumberColumn.getType(), sessionFactory);
        insertStatement.getTargetColumnReferences().add(columnReference);
        targetPathSqmCteColumns.add(rowNumberColumn);
    }
    final CteTable entityCteTable = BaseSqmToSqlAstConverter.createCteTable(getCteTable(), targetPathSqmCteColumns, factory);
    // Create the main query spec that will return the count of rows
    final QuerySpec querySpec = new QuerySpec(true, 1);
    final List<DomainResult<?>> domainResults = new ArrayList<>(1);
    final SelectStatement statement = new SelectStatement(querySpec, domainResults);
    final CteStatement entityCte;
    if (additionalInsertValues.requiresRowNumberIntermediate()) {
        final CteTable fullEntityCteTable = BaseSqmToSqlAstConverter.createCteTable(getCteTable(), factory);
        final String baseTableName = "base_" + entityCteTable.getTableExpression();
        final CteStatement baseEntityCte = new CteStatement(entityCteTable.withName(baseTableName), queryStatement, // The query cte will be reused multiple times
        CteMaterialization.MATERIALIZED);
        statement.addCteStatement(baseEntityCte);
        final CteColumn rowNumberColumn = fullEntityCteTable.getCteColumns().get(fullEntityCteTable.getCteColumns().size() - 1);
        final ColumnReference rowNumberColumnReference = new ColumnReference("e", rowNumberColumn.getColumnExpression(), false, null, null, rowNumberColumn.getJdbcMapping(), factory);
        final CteColumn idColumn = fullEntityCteTable.getCteColumns().get(0);
        final BasicValuedMapping idType = (BasicValuedMapping) idColumn.getJdbcMapping();
        final Optimizer optimizer = ((OptimizableGenerator) entityDescriptor.getIdentifierGenerator()).getOptimizer();
        final BasicValuedMapping integerType = (BasicValuedMapping) rowNumberColumn.getJdbcMapping();
        final Expression rowNumberMinusOneModuloIncrement = new BinaryArithmeticExpression(new BinaryArithmeticExpression(rowNumberColumnReference, BinaryArithmeticOperator.SUBTRACT, new QueryLiteral<>(1, (BasicValuedMapping) rowNumberColumn.getJdbcMapping()), integerType), BinaryArithmeticOperator.MODULO, new QueryLiteral<>(optimizer.getIncrementSize(), integerType), integerType);
        // Create the CTE that fetches a new sequence value for the row numbers that need it
        {
            final QuerySpec rowsWithSequenceQuery = new QuerySpec(true);
            rowsWithSequenceQuery.getFromClause().addRoot(new CteTableGroup(new NamedTableReference(baseTableName, "e", false, factory)));
            rowsWithSequenceQuery.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, rowNumberColumnReference));
            final String fragment = ((BulkInsertionCapableIdentifierGenerator) entityDescriptor.getIdentifierGenerator()).determineBulkInsertionIdentifierGenerationSelectFragment(sessionFactory.getSqlStringGenerationContext());
            rowsWithSequenceQuery.getSelectClause().addSqlSelection(new SqlSelectionImpl(2, 1, new SelfRenderingSqlFragmentExpression(fragment)));
            rowsWithSequenceQuery.applyPredicate(new ComparisonPredicate(rowNumberMinusOneModuloIncrement, ComparisonOperator.EQUAL, new QueryLiteral<>(0, integerType)));
            final CteTable rowsWithSequenceCteTable = new CteTable(ROW_NUMBERS_WITH_SEQUENCE_VALUE, Arrays.asList(rowNumberColumn, idColumn), sessionFactory);
            final SelectStatement rowsWithSequenceStatement = new SelectStatement(rowsWithSequenceQuery);
            final CteStatement rowsWithSequenceCte = new CteStatement(rowsWithSequenceCteTable, rowsWithSequenceStatement, // The query cte will be reused multiple times
            CteMaterialization.MATERIALIZED);
            statement.addCteStatement(rowsWithSequenceCte);
        }
        // Create the CTE that represents the entity cte
        {
            final QuerySpec entityQuery = new QuerySpec(true);
            final NavigablePath navigablePath = new NavigablePath(baseTableName);
            final TableGroup baseTableGroup = new TableGroupImpl(navigablePath, null, new NamedTableReference(baseTableName, "e", false, factory), null);
            final TableGroup rowsWithSequenceTableGroup = new CteTableGroup(new NamedTableReference(ROW_NUMBERS_WITH_SEQUENCE_VALUE, "t", false, factory));
            baseTableGroup.addTableGroupJoin(new TableGroupJoin(rowsWithSequenceTableGroup.getNavigablePath(), SqlAstJoinType.LEFT, rowsWithSequenceTableGroup, new ComparisonPredicate(new BinaryArithmeticExpression(rowNumberColumnReference, BinaryArithmeticOperator.SUBTRACT, rowNumberMinusOneModuloIncrement, integerType), ComparisonOperator.EQUAL, new ColumnReference("t", rowNumberColumn.getColumnExpression(), false, null, null, rowNumberColumn.getJdbcMapping(), factory))));
            entityQuery.getFromClause().addRoot(baseTableGroup);
            entityQuery.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, new BinaryArithmeticExpression(new ColumnReference("t", idColumn.getColumnExpression(), false, null, null, idColumn.getJdbcMapping(), factory), BinaryArithmeticOperator.ADD, new BinaryArithmeticExpression(rowNumberColumnReference, BinaryArithmeticOperator.SUBTRACT, new ColumnReference("t", rowNumberColumn.getColumnExpression(), false, null, null, rowNumberColumn.getJdbcMapping(), factory), integerType), idType)));
            final CteTable finalEntityCteTable;
            if (targetPathSqmCteColumns.contains(getCteTable().getColumns().get(0))) {
                finalEntityCteTable = entityCteTable;
            } else {
                targetPathSqmCteColumns.add(0, getCteTable().getColumns().get(0));
                finalEntityCteTable = BaseSqmToSqlAstConverter.createCteTable(getCteTable(), targetPathSqmCteColumns, factory);
            }
            final List<CteColumn> cteColumns = finalEntityCteTable.getCteColumns();
            for (int i = 1; i < cteColumns.size(); i++) {
                final CteColumn cteColumn = cteColumns.get(i);
                entityQuery.getSelectClause().addSqlSelection(new SqlSelectionImpl(i + 1, i, new ColumnReference("e", cteColumn.getColumnExpression(), false, null, null, cteColumn.getJdbcMapping(), factory)));
            }
            final SelectStatement entityStatement = new SelectStatement(entityQuery);
            entityCte = new CteStatement(finalEntityCteTable, entityStatement, // The query cte will be reused multiple times
            CteMaterialization.MATERIALIZED);
            statement.addCteStatement(entityCte);
        }
    } else if (!assignsId && entityDescriptor.getIdentifierGenerator() instanceof PostInsertIdentifierGenerator) {
        final String baseTableName = "base_" + entityCteTable.getTableExpression();
        final CteStatement baseEntityCte = new CteStatement(entityCteTable.withName(baseTableName), queryStatement, // The query cte will be reused multiple times
        CteMaterialization.MATERIALIZED);
        statement.addCteStatement(baseEntityCte);
        targetPathSqmCteColumns.add(0, cteTable.getColumns().get(0));
        final CteTable finalEntityCteTable = BaseSqmToSqlAstConverter.createCteTable(getCteTable(), targetPathSqmCteColumns, factory);
        final QuerySpec finalQuerySpec = new QuerySpec(true);
        final SelectStatement finalQueryStatement = new SelectStatement(finalQuerySpec);
        entityCte = new CteStatement(finalEntityCteTable, finalQueryStatement, // The query cte will be reused multiple times
        CteMaterialization.MATERIALIZED);
    } else {
        entityCte = new CteStatement(entityCteTable, queryStatement, // The query cte will be reused multiple times
        CteMaterialization.MATERIALIZED);
        statement.addCteStatement(entityCte);
    }
    // Add all CTEs
    final String baseInsertCte = addDmlCtes(statement, entityCte, targetPathColumns, assignsId, sqmConverter, parameterResolutions, factory);
    final Expression count = createCountStar(factory, sqmConverter);
    domainResults.add(new BasicResult(0, null, ((SqlExpressible) count).getJdbcMapping().getJavaTypeDescriptor()));
    querySpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, count));
    querySpec.getFromClause().addRoot(new CteTableGroup(new NamedTableReference(// We want to return the insertion count of the base table
    baseInsertCte, CTE_TABLE_IDENTIFIER, false, factory)));
    // Execute the statement
    final JdbcServices jdbcServices = factory.getJdbcServices();
    final SqlAstTranslator<JdbcSelect> translator = jdbcServices.getJdbcEnvironment().getSqlAstTranslatorFactory().buildSelectTranslator(factory, statement);
    final JdbcParameterBindings jdbcParameterBindings = SqmUtil.createJdbcParameterBindings(executionContext.getQueryParameterBindings(), domainParameterXref, SqmUtil.generateJdbcParamsXref(domainParameterXref, sqmConverter), factory.getRuntimeMetamodels().getMappingMetamodel(), navigablePath -> sqmConverter.getMutatingTableGroup(), new SqmParameterMappingModelResolutionAccess() {

        @Override
        @SuppressWarnings("unchecked")
        public <T> MappingModelExpressible<T> getResolvedMappingModelType(SqmParameter<T> parameter) {
            return (MappingModelExpressible<T>) paramTypeResolutions.get(parameter);
        }
    }, executionContext.getSession());
    final JdbcSelect select = translator.translate(jdbcParameterBindings, executionContext.getQueryOptions());
    executionContext.getSession().autoFlushIfRequired(select.getAffectedTableNames());
    List<Object> list = jdbcServices.getJdbcSelectExecutor().list(select, jdbcParameterBindings, SqmJdbcExecutionContextAdapter.omittingLockingAndPaging(executionContext), row -> row[0], ListResultsConsumer.UniqueSemantic.NONE);
    return ((Number) list.get(0)).intValue();
}

Example 2 with QueryLiteral

use of org.hibernate.sql.ast.tree.expression.QueryLiteral in project hibernate-orm by hibernate.

the class ExecuteWithTemporaryTableHelper method saveMatchingIdsIntoIdTable.

public static int saveMatchingIdsIntoIdTable(MultiTableSqmMutationConverter sqmConverter, Predicate suppliedPredicate, TemporaryTable idTable, Function<SharedSessionContractImplementor, String> sessionUidAccess, JdbcParameterBindings jdbcParameterBindings, ExecutionContext executionContext) {
    final SessionFactoryImplementor factory = executionContext.getSession().getFactory();
    final TableGroup mutatingTableGroup = sqmConverter.getMutatingTableGroup();
    assert mutatingTableGroup.getModelPart() instanceof EntityMappingType;
    final EntityMappingType mutatingEntityDescriptor = (EntityMappingType) mutatingTableGroup.getModelPart();
    final NamedTableReference idTableReference = new NamedTableReference(idTable.getTableExpression(), InsertStatement.DEFAULT_ALIAS, false, factory);
    final InsertStatement idTableInsert = new InsertStatement(idTableReference);
    for (int i = 0; i < idTable.getColumns().size(); i++) {
        final TemporaryTableColumn column = idTable.getColumns().get(i);
        idTableInsert.addTargetColumnReferences(new ColumnReference(idTableReference, column.getColumnName(), // id columns cannot be formulas and cannot have custom read and write expressions
        false, null, null, column.getJdbcMapping(), factory));
    }
    final QuerySpec matchingIdSelection = new QuerySpec(true, 1);
    idTableInsert.setSourceSelectStatement(matchingIdSelection);
    matchingIdSelection.getFromClause().addRoot(mutatingTableGroup);
    mutatingEntityDescriptor.getIdentifierMapping().forEachSelectable((jdbcPosition, selection) -> {
        final TableReference tableReference = mutatingTableGroup.resolveTableReference(mutatingTableGroup.getNavigablePath(), selection.getContainingTableExpression());
        matchingIdSelection.getSelectClause().addSqlSelection(new SqlSelectionImpl(jdbcPosition, jdbcPosition + 1, sqmConverter.getSqlExpressionResolver().resolveSqlExpression(SqlExpressionResolver.createColumnReferenceKey(tableReference, selection.getSelectionExpression()), sqlAstProcessingState -> new ColumnReference(tableReference, selection, factory))));
    });
    if (idTable.getSessionUidColumn() != null) {
        final int jdbcPosition = matchingIdSelection.getSelectClause().getSqlSelections().size();
        matchingIdSelection.getSelectClause().addSqlSelection(new SqlSelectionImpl(jdbcPosition, jdbcPosition + 1, new QueryLiteral<>(sessionUidAccess.apply(executionContext.getSession()), (BasicValuedMapping) idTable.getSessionUidColumn().getJdbcMapping())));
    }
    matchingIdSelection.applyPredicate(suppliedPredicate);
    return saveIntoTemporaryTable(idTableInsert, jdbcParameterBindings, executionContext);
}

Example 3 with QueryLiteral

use of org.hibernate.sql.ast.tree.expression.QueryLiteral in project hibernate-orm by hibernate.

the class IntegralTimestampaddFunction method convertedArgument.

private Expression convertedArgument(DurationUnit field, TemporalUnit unit, Expression magnitude) {
    final BasicValuedMapping expressionType = (BasicValuedMapping) magnitude.getExpressionType();
    final String conversionFactor = field.getUnit().conversionFactor(unit, dialect);
    return conversionFactor.isEmpty() ? magnitude : new BinaryArithmeticExpression(magnitude, conversionFactor.charAt(0) == '*' ? BinaryArithmeticOperator.MULTIPLY : BinaryArithmeticOperator.DIVIDE, new QueryLiteral<>(expressionType.getExpressibleJavaType().fromString(conversionFactor.substring(1)), expressionType), expressionType);
}

Example 4 with QueryLiteral

use of org.hibernate.sql.ast.tree.expression.QueryLiteral in project hibernate-orm by hibernate.

the class SqlFunction method render.

@Override
public void render(SqlAppender sqlAppender, List<? extends SqlAstNode> arguments, SqlAstTranslator<?> walker) {
    final QueryLiteral<String> sqlFragmentLiteral = (QueryLiteral<String>) arguments.get(0);
    final String sqlFragment = sqlFragmentLiteral.getLiteralValue();
    if (arguments.size() != 1) {
        int index = 0;
        for (int i = 1; i < arguments.size(); i++) {
            final SqlAstNode argument = arguments.get(i);
            final int paramIndex = sqlFragment.indexOf('?', index);
            if (paramIndex == -1) {
                throw new IllegalArgumentException("The SQL function passes an argument at index " + i + " but the fragment contains no placeholder for the argument: " + sqlFragment);
            }
            sqlAppender.append(sqlFragment, index, paramIndex);
            argument.accept(walker);
            index = paramIndex + 1;
        }
    } else {
        sqlAppender.appendSql(sqlFragment);
    }
}

Example 5 with QueryLiteral

use of org.hibernate.sql.ast.tree.expression.QueryLiteral in project hibernate-orm by hibernate.

the class BaseSqmToSqlAstConverter method resolveGroupOrOrderByExpression.

protected Expression resolveGroupOrOrderByExpression(SqmExpression<?> groupByClauseExpression) {
    final int sqmPosition;
    if (groupByClauseExpression instanceof SqmAliasedNodeRef) {
        final int aliasedNodeOrdinal = ((SqmAliasedNodeRef) groupByClauseExpression).getPosition();
        sqmPosition = aliasedNodeOrdinal - 1;
    } else if (statement.getQuerySource() == SqmQuerySource.CRITERIA) {
        // In JPA Criteria we could be using the same expression object for the group/order by and select item
        // We try to find the select item position for this expression here which is not necessarily just an optimization.
        // This is vital to enable the support for parameters in these expressions.
        // Databases usually don't know if a parameter marker will have the same value as another parameter marker
        // and due to that, a database usually complains when seeing something like
        // `select ?, count(*) from dual group by ?` saying that there is a missing group by for the first `?`
        // To avoid this issue, we determine the position and let the SqlAstTranslator handle the rest.
        // Usually it will render `select ?, count(*) from dual group by 1` if supported
        // or force rendering the parameter as literal instead so that the database can see the grouping is fine
        final SqmQuerySpec<?> querySpec = currentSqmQueryPart.getFirstQuerySpec();
        sqmPosition = indexOfExpression(querySpec.getSelectClause().getSelections(), groupByClauseExpression);
    } else {
        sqmPosition = -1;
    }
    if (sqmPosition != -1) {
        final List<SqlSelection> selections = currentSqlSelectionCollector().getSelections(sqmPosition);
        assert selections != null : String.format(Locale.ROOT, "No SqlSelections for SQM position `%s`", sqmPosition);
        final List<Expression> expressions = new ArrayList<>(selections.size());
        OUTER: for (int i = 0; i < selections.size(); i++) {
            final SqlSelection selection = selections.get(i);
            // which is, just like the identifier itself, also registered as selection
            for (int j = 0; j < i; j++) {
                if (selections.get(j) == selection) {
                    continue OUTER;
                }
            }
            if (currentSqmQueryPart instanceof SqmQueryGroup<?>) {
                // Reusing the SqlSelection for query groups would be wrong because the aliases do no exist
                // So we have to use a literal expression in a new SqlSelection instance to refer to the position
                expressions.add(new SqlSelectionExpression(new SqlSelectionImpl(selection.getJdbcResultSetIndex(), selection.getValuesArrayPosition(), new QueryLiteral<>(selection.getValuesArrayPosition(), basicType(Integer.class)))));
            } else {
                expressions.add(new SqlSelectionExpression(selection));
            }
        }
        if (expressions.size() == 1) {
            return expressions.get(0);
        }
        return new SqlTuple(expressions, null);
    }
    return (Expression) groupByClauseExpression.accept(this);
}