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HHH-18217 Properly handle empty value bindings for merge operations #11365

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HHH-18217 Properly handle empty value bindings for merge operations #11365

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54ae7f0
HHH-19725 Test upsert for entity type that only declares an ID attribute
yrodiere Aug 20, 2025
b1054f7
HHH-18217 Properly handle empty value bindings for merge operations
beikov Aug 28, 2025
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11 changes: 11 additions & 0 deletions hibernate-core/src/main/java/org/hibernate/StaleStateException.java
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Original file line number Diff line number Diff line change
Expand Up @@ -26,4 +26,15 @@ public class StaleStateException extends HibernateException {
public StaleStateException(String message) {
super( message );
}

/**
* Constructs a {@code StaleStateException} using the supplied message
* and cause.
*
* @param message The message explaining the exception condition
* @param cause An exception to wrap
*/
public StaleStateException(String message, Exception cause) {
super( message, cause );
}
}
25 changes: 16 additions & 9 deletions hibernate-core/src/main/java/org/hibernate/dialect/SqlAstTranslatorWithMerge.java
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Expand Up @@ -11,6 +11,7 @@
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.internal.util.StringHelper;
import org.hibernate.sql.ast.spi.AbstractSqlAstTranslator;
import org.hibernate.jdbc.Expectation;
import org.hibernate.sql.ast.tree.Statement;
import org.hibernate.sql.exec.spi.JdbcOperation;
import org.hibernate.sql.model.ast.ColumnValueBinding;
Expand Down Expand Up @@ -46,6 +47,10 @@ public MergeOperation createMergeOperation(OptionalTableUpdate optionalTableUpda
optionalTableUpdate.getMutatingTable().getTableMapping(),
optionalTableUpdate.getMutationTarget(),
getSql(),
// Without value bindings, the upsert may have an update count of 0
optionalTableUpdate.getValueBindings().isEmpty()
? new Expectation.OptionalRowCount()
: new Expectation.RowCount(),
getParameterBinders()
);
}
Expand Down Expand Up @@ -228,16 +233,18 @@ protected void renderMergeUpdate(OptionalTableUpdate optionalTableUpdate) {
final List<ColumnValueBinding> valueBindings = optionalTableUpdate.getValueBindings();
final List<ColumnValueBinding> optimisticLockBindings = optionalTableUpdate.getOptimisticLockBindings();

renderWhenMatched( optimisticLockBindings );
appendSql( " then update set " );
for ( int i = 0; i < valueBindings.size(); i++ ) {
final ColumnValueBinding binding = valueBindings.get( i );
if ( i > 0 ) {
appendSql( ", " );
if ( !valueBindings.isEmpty() ) {
renderWhenMatched( optimisticLockBindings );
appendSql( " then update set " );
for ( int i = 0; i < valueBindings.size(); i++ ) {
final ColumnValueBinding binding = valueBindings.get( i );
if ( i > 0 ) {
appendSql( ", " );
}
binding.getColumnReference().appendColumnForWrite( this, null );
appendSql( "=" );
binding.getColumnReference().appendColumnForWrite( this, "s" );
}
binding.getColumnReference().appendColumnForWrite( this, null );
appendSql( "=" );
binding.getColumnReference().appendColumnForWrite( this, "s" );
}
}

Expand Down
25 changes: 16 additions & 9 deletions hibernate-core/src/main/java/org/hibernate/dialect/SqlAstTranslatorWithUpsert.java
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Expand Up @@ -9,6 +9,7 @@
import java.util.List;

import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.jdbc.Expectation;
import org.hibernate.persister.entity.mutation.EntityTableMapping;
import org.hibernate.sql.ast.spi.AbstractSqlAstTranslator;
import org.hibernate.sql.ast.tree.Statement;
Expand Down Expand Up @@ -39,6 +40,10 @@ public MutationOperation createMergeOperation(OptionalTableUpdate optionalTableU
optionalTableUpdate.getMutatingTable().getTableMapping(),
optionalTableUpdate.getMutationTarget(),
getSql(),
// Without value bindings, the upsert may have an update count of 0
optionalTableUpdate.getValueBindings().isEmpty()
? new Expectation.OptionalRowCount()
: new Expectation.RowCount(),
getParameterBinders()
);

Expand Down Expand Up @@ -193,17 +198,19 @@ protected void renderMergeUpdate(OptionalTableUpdate optionalTableUpdate) {
final List<ColumnValueBinding> valueBindings = optionalTableUpdate.getValueBindings();
final List<ColumnValueBinding> optimisticLockBindings = optionalTableUpdate.getOptimisticLockBindings();

appendSql( " when matched then update set " );
for ( int i = 0; i < valueBindings.size(); i++ ) {
final ColumnValueBinding binding = valueBindings.get( i );
if ( i > 0 ) {
appendSql( ", " );
if ( !valueBindings.isEmpty() ) {
appendSql( " when matched then update set " );
for ( int i = 0; i < valueBindings.size(); i++ ) {
final ColumnValueBinding binding = valueBindings.get( i );
if ( i > 0 ) {
appendSql( ", " );
}
binding.getColumnReference().appendColumnForWrite( this, "t" );
appendSql( "=" );
binding.getColumnReference().appendColumnForWrite( this, "s" );
}
binding.getColumnReference().appendColumnForWrite( this, "t" );
appendSql( "=" );
binding.getColumnReference().appendColumnForWrite( this, "s" );
renderMatchedWhere( optimisticLockBindings );
}
renderMatchedWhere( optimisticLockBindings );
}

private void renderMatchedWhere(List<ColumnValueBinding> optimisticLockBindings) {
Expand Down
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