Adopt to API changes in Spring Data Relational.

Closes #661

Author: mp911de

src/main/java/org/springframework/data/r2dbc/query/QueryMapper.java

@@ -161,7 +161,7 @@ public Expression getMappedObject(Expression expression, @Nullable RelationalPer
 
 			Column column = (Column) expression;
 			Field field = createPropertyField(entity, column.getName());
-			Table table = column.getTable();
+			TableLike table = column.getTable();
 
 			Column columnFromTable = table.column(field.getMappedColumnName());
 			return column instanceof Aliased ? columnFromTable.as(((Aliased) column).getAlias()) : columnFromTable;