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Example 1 with NamedTableReference

use of org.hibernate.sql.ast.tree.from.NamedTableReference in project hibernate-orm by hibernate.

the class PluralAttributeMappingImpl method createCollectionTableGroup.

private TableGroup createCollectionTableGroup(boolean canUseInnerJoins, NavigablePath navigablePath, boolean fetched, String sourceAlias, SqlAliasBase sqlAliasBase, SqlExpressionResolver sqlExpressionResolver, FromClauseAccess fromClauseAccess, SqlAstCreationContext creationContext) {
    assert !getCollectionDescriptor().isOneToMany();
    final String collectionTableName = ((Joinable) collectionDescriptor).getTableName();
    final TableReference collectionTableReference = new NamedTableReference(collectionTableName, sqlAliasBase.generateNewAlias(), true, creationContext.getSessionFactory());
    final CollectionTableGroup tableGroup = new CollectionTableGroup(canUseInnerJoins, navigablePath, this, fetched, sourceAlias, collectionTableReference, true, sqlAliasBase, s -> false, null, creationContext.getSessionFactory());
    if (elementDescriptor instanceof TableGroupJoinProducer) {
        final TableGroupJoin tableGroupJoin = ((TableGroupJoinProducer) elementDescriptor).createTableGroupJoin(navigablePath.append(CollectionPart.Nature.ELEMENT.getName()), tableGroup, null, SqlAstJoinType.INNER, fetched, false, stem -> sqlAliasBase, sqlExpressionResolver, fromClauseAccess, creationContext);
        tableGroup.registerElementTableGroup(tableGroupJoin);
    }
    if (indexDescriptor instanceof TableGroupJoinProducer) {
        final TableGroupJoin tableGroupJoin = ((TableGroupJoinProducer) indexDescriptor).createTableGroupJoin(navigablePath.append(CollectionPart.Nature.INDEX.getName()), tableGroup, null, SqlAstJoinType.INNER, fetched, false, stem -> sqlAliasBase, sqlExpressionResolver, fromClauseAccess, creationContext);
        tableGroup.registerIndexTableGroup(tableGroupJoin);
    }
    return tableGroup;
}
Also used : TableGroupJoin(org.hibernate.sql.ast.tree.from.TableGroupJoin) TableReference(org.hibernate.sql.ast.tree.from.TableReference) NamedTableReference(org.hibernate.sql.ast.tree.from.NamedTableReference) NamedTableReference(org.hibernate.sql.ast.tree.from.NamedTableReference) TableGroupJoinProducer(org.hibernate.sql.ast.tree.from.TableGroupJoinProducer) Joinable(org.hibernate.persister.entity.Joinable) CollectionTableGroup(org.hibernate.sql.ast.tree.from.CollectionTableGroup)

Example 2 with NamedTableReference

use of org.hibernate.sql.ast.tree.from.NamedTableReference in project hibernate-orm by hibernate.

the class InformixSqmToSqlAstConverter method visitQuerySpec.

@Override
public QuerySpec visitQuerySpec(SqmQuerySpec<?> sqmQuerySpec) {
    final boolean needsDummy = this.needsDummyTableGroup;
    this.needsDummyTableGroup = false;
    try {
        final QuerySpec querySpec = super.visitQuerySpec(sqmQuerySpec);
        if (this.needsDummyTableGroup) {
            querySpec.getFromClause().addRoot(new StandardTableGroup(true, null, null, null, new NamedTableReference("(select 1)", "dummy_(x)", false, getCreationContext().getSessionFactory()), null, getCreationContext().getSessionFactory()));
        }
        return querySpec;
    } finally {
        this.needsDummyTableGroup = needsDummy;
    }
}
Also used : StandardTableGroup(org.hibernate.sql.ast.tree.from.StandardTableGroup) NamedTableReference(org.hibernate.sql.ast.tree.from.NamedTableReference) SqmQuerySpec(org.hibernate.query.sqm.tree.select.SqmQuerySpec) QuerySpec(org.hibernate.sql.ast.tree.select.QuerySpec)

Example 3 with NamedTableReference

use of org.hibernate.sql.ast.tree.from.NamedTableReference in project hibernate-orm by hibernate.

the class AbstractSqlAstTranslator method renderPrimaryTableReference.

protected boolean renderPrimaryTableReference(TableGroup tableGroup, LockMode lockMode) {
    final TableReference tableReference = tableGroup.getPrimaryTableReference();
    if (tableReference instanceof NamedTableReference) {
        return renderNamedTableReference((NamedTableReference) tableReference, lockMode);
    }
    final DerivedTableReference derivedTableReference = (DerivedTableReference) tableReference;
    if (derivedTableReference.isLateral()) {
        if (getDialect().supportsLateral()) {
            appendSql("lateral");
        } else if (tableReference instanceof QueryPartTableReference) {
            final QueryPartTableReference queryPartTableReference = (QueryPartTableReference) tableReference;
            final QueryPart emulationQueryPart = stripToSelectClause(queryPartTableReference.getQueryPart());
            final QueryPartTableReference emulationTableReference = new QueryPartTableReference(emulationQueryPart, tableReference.getIdentificationVariable(), queryPartTableReference.getColumnNames(), false, sessionFactory);
            emulationTableReference.accept(this);
            return false;
        }
    }
    tableReference.accept(this);
    return false;
}
Also used : NamedTableReference(org.hibernate.sql.ast.tree.from.NamedTableReference) DerivedTableReference(org.hibernate.sql.ast.tree.from.DerivedTableReference) ValuesTableReference(org.hibernate.sql.ast.tree.from.ValuesTableReference) FunctionTableReference(org.hibernate.sql.ast.tree.from.FunctionTableReference) TableReference(org.hibernate.sql.ast.tree.from.TableReference) QueryPartTableReference(org.hibernate.sql.ast.tree.from.QueryPartTableReference) NamedTableReference(org.hibernate.sql.ast.tree.from.NamedTableReference) QueryPart(org.hibernate.sql.ast.tree.select.QueryPart) DerivedTableReference(org.hibernate.sql.ast.tree.from.DerivedTableReference) QueryPartTableReference(org.hibernate.sql.ast.tree.from.QueryPartTableReference)

Example 4 with NamedTableReference

use of org.hibernate.sql.ast.tree.from.NamedTableReference in project hibernate-orm by hibernate.

the class CteInsertHandler method addDmlCtes.

protected String addDmlCtes(CteContainer statement, CteStatement queryCte, List<Map.Entry<SqmCteTableColumn, Assignment>> assignments, boolean assignsId, MultiTableSqmMutationConverter sqmConverter, Map<SqmParameter<?>, List<List<JdbcParameter>>> parameterResolutions, SessionFactoryImplementor factory) {
    final TableGroup updatingTableGroup = sqmConverter.getMutatingTableGroup();
    final EntityMappingType entityDescriptor = getEntityDescriptor();
    final EntityPersister entityPersister = entityDescriptor.getEntityPersister();
    final String rootEntityName = entityPersister.getRootEntityName();
    final EntityPersister rootEntityDescriptor = factory.getRuntimeMetamodels().getMappingMetamodel().getEntityDescriptor(rootEntityName);
    final String hierarchyRootTableName = ((Joinable) rootEntityDescriptor).getTableName();
    final TableReference hierarchyRootTableReference = updatingTableGroup.resolveTableReference(updatingTableGroup.getNavigablePath(), hierarchyRootTableName);
    assert hierarchyRootTableReference != null;
    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    // cross-reference the TableReference by alias.  The TableGroup already
    // cross-references it by name, but the ColumnReference only has the alias
    final Map<String, TableReference> tableReferenceByAlias = CollectionHelper.mapOfSize(updatingTableGroup.getTableReferenceJoins().size() + 1);
    collectTableReference(updatingTableGroup.getPrimaryTableReference(), tableReferenceByAlias::put);
    for (int i = 0; i < updatingTableGroup.getTableReferenceJoins().size(); i++) {
        collectTableReference(updatingTableGroup.getTableReferenceJoins().get(i), tableReferenceByAlias::put);
    }
    final Map<TableReference, List<Map.Entry<SqmCteTableColumn, Assignment>>> assignmentsByTable = CollectionHelper.mapOfSize(updatingTableGroup.getTableReferenceJoins().size() + 1);
    for (int i = 0; i < assignments.size(); i++) {
        final Map.Entry<SqmCteTableColumn, Assignment> entry = assignments.get(i);
        final Assignment assignment = entry.getValue();
        final List<ColumnReference> assignmentColumnRefs = assignment.getAssignable().getColumnReferences();
        TableReference assignmentTableReference = null;
        for (int c = 0; c < assignmentColumnRefs.size(); c++) {
            final ColumnReference columnReference = assignmentColumnRefs.get(c);
            final TableReference tableReference = resolveTableReference(columnReference, updatingTableGroup, tableReferenceByAlias);
            // TODO: this could be fixed by introducing joins to DML statements
            if (assignmentTableReference != null && !assignmentTableReference.equals(tableReference)) {
                throw new IllegalStateException("Assignment referred to columns from multiple tables");
            }
            assignmentTableReference = tableReference;
        }
        assert assignmentTableReference != null;
        List<Map.Entry<SqmCteTableColumn, Assignment>> assignmentsForTable = assignmentsByTable.get(assignmentTableReference);
        if (assignmentsForTable == null) {
            assignmentsForTable = new ArrayList<>();
            assignmentsByTable.put(assignmentTableReference, assignmentsForTable);
        }
        assignmentsForTable.add(entry);
    }
    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    // Add the root insert as cte
    final AbstractEntityPersister persister = (AbstractEntityPersister) entityDescriptor.getEntityPersister();
    final String rootTableName = persister.getTableName(0);
    final TableReference rootTableReference = updatingTableGroup.getTableReference(updatingTableGroup.getNavigablePath(), rootTableName, true, true);
    final IdentifierGenerator identifierGenerator = entityDescriptor.getEntityPersister().getIdentifierGenerator();
    final List<Map.Entry<SqmCteTableColumn, Assignment>> tableAssignments = assignmentsByTable.get(rootTableReference);
    if ((tableAssignments == null || tableAssignments.isEmpty()) && !(identifierGenerator instanceof PostInsertIdentifierGenerator)) {
        throw new IllegalStateException("There must be at least a single root table assignment");
    }
    final int tableSpan = persister.getTableSpan();
    final String[] rootKeyColumns = persister.getKeyColumns(0);
    final List<CteColumn> keyCteColumns = queryCte.getCteTable().getCteColumns().subList(0, rootKeyColumns.length);
    for (int i = 0; i < tableSpan; i++) {
        final String tableExpression = persister.getTableName(i);
        final TableReference updatingTableReference = updatingTableGroup.getTableReference(updatingTableGroup.getNavigablePath(), tableExpression, true, true);
        final List<Map.Entry<SqmCteTableColumn, Assignment>> assignmentList = assignmentsByTable.get(updatingTableReference);
        final NamedTableReference dmlTableReference = resolveUnionTableReference(updatingTableReference, tableExpression);
        final String[] keyColumns = persister.getKeyColumns(i);
        final List<ColumnReference> returningColumnReferences = new ArrayList<>(keyColumns.length + (assignmentList == null ? 0 : assignmentList.size()));
        final List<ColumnReference> insertColumnReferences;
        final QuerySpec insertSelectSpec = new QuerySpec(true);
        CteStatement finalCteStatement = null;
        final CteTable dmlResultCte;
        if (i == 0 && !assignsId && identifierGenerator instanceof PostInsertIdentifierGenerator) {
            // Special handling for identity generation
            final String baseTableName = "base_" + queryCte.getCteTable().getTableExpression();
            insertSelectSpec.getFromClause().addRoot(new CteTableGroup(new NamedTableReference(baseTableName, "e", false, factory)));
            final CteColumn rowNumberColumn = queryCte.getCteTable().getCteColumns().get(queryCte.getCteTable().getCteColumns().size() - 1);
            final ColumnReference rowNumberColumnReference = new ColumnReference("e", rowNumberColumn.getColumnExpression(), false, null, null, rowNumberColumn.getJdbcMapping(), factory);
            // Insert in the same order as the original tuples came
            insertSelectSpec.addSortSpecification(new SortSpecification(rowNumberColumnReference, SortOrder.ASCENDING));
            final List<CteColumn> returningColumns = new ArrayList<>(keyCteColumns.size() + 1);
            returningColumns.addAll(keyCteColumns);
            dmlResultCte = new CteTable(getCteTableName(tableExpression, "base_"), returningColumns, factory);
            for (int j = 0; j < keyColumns.length; j++) {
                returningColumnReferences.add(new ColumnReference(dmlTableReference, keyColumns[j], false, null, null, null, factory));
            }
            insertColumnReferences = Collections.emptyList();
            final SelectStatement queryStatement = (SelectStatement) queryCte.getCteDefinition();
            final QuerySpec querySpec = queryStatement.getQuerySpec();
            final NavigablePath navigablePath = new NavigablePath(baseTableName);
            final TableGroup baseTableGroup = new TableGroupImpl(navigablePath, null, new NamedTableReference(baseTableName, "e", false, factory), null);
            final TableGroup rootInsertCteTableGroup = new CteTableGroup(new NamedTableReference(getCteTableName(tableExpression), "t", false, factory));
            baseTableGroup.addTableGroupJoin(new TableGroupJoin(rootInsertCteTableGroup.getNavigablePath(), SqlAstJoinType.INNER, rootInsertCteTableGroup, new ComparisonPredicate(rowNumberColumnReference, ComparisonOperator.EQUAL, new ColumnReference("t", rowNumberColumn.getColumnExpression(), false, null, null, rowNumberColumn.getJdbcMapping(), factory))));
            querySpec.getFromClause().addRoot(baseTableGroup);
            final List<CteColumn> cteColumns = queryCte.getCteTable().getCteColumns();
            // The id column in this case comes from the dml CTE
            final CteColumn idCteColumn = cteColumns.get(0);
            querySpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, new ColumnReference("t", idCteColumn.getColumnExpression(), false, null, null, idCteColumn.getJdbcMapping(), factory)));
            // The other columns come from the base CTE
            for (int j = 1; j < cteColumns.size(); j++) {
                final CteColumn cteColumn = cteColumns.get(j);
                querySpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, new ColumnReference("e", cteColumn.getColumnExpression(), false, null, null, cteColumn.getJdbcMapping(), factory)));
            }
            // Now build the final CTE statement
            final List<CteColumn> finalReturningColumns = new ArrayList<>(keyCteColumns.size() + 1);
            finalReturningColumns.addAll(keyCteColumns);
            finalReturningColumns.add(rowNumberColumn);
            final CteTable finalResultCte = new CteTable(getCteTableName(tableExpression), finalReturningColumns, factory);
            final QuerySpec finalResultQuery = new QuerySpec(true);
            finalResultQuery.getFromClause().addRoot(new CteTableGroup(new NamedTableReference(dmlResultCte.getTableExpression(), "e", false, factory)));
            // The id column in this case comes from the dml CTE
            final ColumnReference idColumnReference = new ColumnReference("e", idCteColumn.getColumnExpression(), false, null, null, idCteColumn.getJdbcMapping(), factory);
            finalResultQuery.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, idColumnReference));
            final BasicType<Integer> rowNumberType = sessionFactory.getTypeConfiguration().getBasicTypeForJavaType(Integer.class);
            finalResultQuery.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())));
            finalResultQuery.addSortSpecification(new SortSpecification(idColumnReference, SortOrder.ASCENDING));
            final SelectStatement finalResultStatement = new SelectStatement(finalResultQuery);
            finalCteStatement = new CteStatement(finalResultCte, finalResultStatement);
        } else {
            insertSelectSpec.getFromClause().addRoot(new CteTableGroup(new NamedTableReference(queryCte.getCteTable().getTableExpression(), "e", false, factory)));
            dmlResultCte = new CteTable(getCteTableName(tableExpression), keyCteColumns, factory);
            for (int j = 0; j < keyColumns.length; j++) {
                returningColumnReferences.add(new ColumnReference(dmlTableReference, keyColumns[j], false, null, null, null, factory));
                insertSelectSpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, new ColumnReference("e", rootKeyColumns[j], false, null, null, null, factory)));
            }
            insertColumnReferences = returningColumnReferences;
        }
        final InsertStatement dmlStatement = new InsertStatement(dmlTableReference, returningColumnReferences);
        dmlStatement.addTargetColumnReferences(insertColumnReferences);
        if (assignmentList != null) {
            for (Map.Entry<SqmCteTableColumn, Assignment> entry : assignmentList) {
                final Assignment assignment = entry.getValue();
                // Skip the id mapping here as we handled that already
                if (assignment.getAssignedValue().getExpressionType() instanceof EntityIdentifierMapping) {
                    continue;
                }
                final List<ColumnReference> assignmentReferences = assignment.getAssignable().getColumnReferences();
                dmlStatement.addTargetColumnReferences(assignmentReferences);
                final int size = assignmentReferences.size();
                for (int j = 0; j < size; j++) {
                    final ColumnReference columnReference = assignmentReferences.get(j);
                    final String columnName = size > 1 ? entry.getKey().getColumnName() + '_' + i : entry.getKey().getColumnName();
                    insertSelectSpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, new ColumnReference("e", columnName, columnReference.isColumnExpressionFormula(), null, null, columnReference.getJdbcMapping(), factory)));
                }
            }
        }
        dmlStatement.setSourceSelectStatement(insertSelectSpec);
        statement.addCteStatement(new CteStatement(dmlResultCte, dmlStatement));
        if (finalCteStatement != null) {
            statement.addCteStatement(finalCteStatement);
        }
        if (i == 0 && !assignsId && identifierGenerator instanceof PostInsertIdentifierGenerator) {
            // Special handling for identity generation
            statement.addCteStatement(queryCte);
        }
    }
    return getCteTableName(rootTableName);
}
Also used : EntityPersister(org.hibernate.persister.entity.EntityPersister) AbstractEntityPersister(org.hibernate.persister.entity.AbstractEntityPersister) CteColumn(org.hibernate.sql.ast.tree.cte.CteColumn) CollectionHelper(org.hibernate.internal.util.collections.CollectionHelper) Arrays(java.util.Arrays) EntityPersister(org.hibernate.persister.entity.EntityPersister) Statement(org.hibernate.sql.ast.tree.Statement) SqlExpressible(org.hibernate.metamodel.mapping.SqlExpressible) BasicType(org.hibernate.type.BasicType) SqmCteTable(org.hibernate.query.sqm.tree.cte.SqmCteTable) SqmInsertValuesStatement(org.hibernate.query.sqm.tree.insert.SqmInsertValuesStatement) TableGroupJoin(org.hibernate.sql.ast.tree.from.TableGroupJoin) CteStatement(org.hibernate.sql.ast.tree.cte.CteStatement) Joinable(org.hibernate.persister.entity.Joinable) EntityMappingType(org.hibernate.metamodel.mapping.EntityMappingType) SqmExpression(org.hibernate.query.sqm.tree.expression.SqmExpression) 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Example 5 with NamedTableReference

use of org.hibernate.sql.ast.tree.from.NamedTableReference 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();
}
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Aggregations

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