HHH-10045 - Teradata requires non null primary keys.

(cherry picked from commit e8da2d0)

Author: sebersole

hibernate-core/src/main/java/org/hibernate/mapping/PrimaryKey.java

@@ -10,11 +10,42 @@
 import org.hibernate.dialect.Dialect;
 import org.hibernate.internal.util.StringHelper;
 
+import org.jboss.logging.Logger;
+
 /**
  * A primary key constraint
+ *
  * @author Gavin King
+ * @author Steve Ebersole
  */
 public class PrimaryKey extends Constraint {
+	private static final Logger log = Logger.getLogger( PrimaryKey.class );
+
+	@Override
+	public void addColumn(Column column) {
+		if ( column.isNullable() ) {
+			if ( log.isDebugEnabled() ) {
+				final String columnName = column.getCanonicalName();
+				log.debugf(
+						"Forcing column [%s] to be non-null as it is part of the primary key for table [%s]",
+						columnName,
+						getTableNameForLogging( column )
+				);
+			}
+			column.setNullable( false );
+		}
+		super.addColumn( column );
+	}
+
+	protected String getTableNameForLogging(Column column) {
+		if ( getTable() != null ) {
+			return getTable().getNameIdentifier().getCanonicalName();
+		}
+		else if ( column.getValue() != null && column.getValue().getTable() != null ) {
+			return column.getValue().getTable().getNameIdentifier().getCanonicalName();
+		}
+		return "<unknown>";
+	}
 
 	public String sqlConstraintString(Dialect dialect) {
 		StringBuilder buf = new StringBuilder("primary key (");