Fix SQL generation for query with sorting.

Closes #1919

Author: schauder

spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/convert/SqlGenerator.java

@@ -1022,7 +1022,7 @@ private SelectBuilder.SelectOrdered applyQueryOnSelect(Query query, MapSqlParame
 
 		if (query.isSorted()) {
 			List<OrderByField> sort = this.queryMapper.getMappedSort(table, query.getSort(), entity);
-			selectOrdered = selectBuilder.orderBy(sort);
+			selectOrdered = selectOrdered.orderBy(sort);
 		}
 
 		SelectBuilder.SelectLimitOffset limitable = (SelectBuilder.SelectLimitOffset) selectOrdered;

spring-data-jdbc/src/test/java/org/springframework/data/jdbc/core/convert/SqlGeneratorUnitTests.java

@@ -342,6 +342,42 @@ void findAllPagedAndSorted() {
 				"LIMIT 10");
 	}
 
+	@Test // GH-1919
+	void selectByQuery() {
+
+		Query query = Query.query(Criteria.where("id").is(23L));
+
+		String sql = sqlGenerator.selectByQuery(query, new MapSqlParameterSource());
+
+		assertThat(sql).contains( //
+				"SELECT", //
+				"FROM dummy_entity", //
+				"LEFT OUTER JOIN referenced_entity ref ON ref.dummy_entity = dummy_entity.id1", //
+				"LEFT OUTER JOIN second_level_referenced_entity ref_further ON ref_further.referenced_entity = ref.x_l1id", //
+				"WHERE dummy_entity.id1 = :id1" //
+		);
+	}
+
+	@Test // GH-1919
+	void selectBySortedQuery() {
+
+		Query query = Query.query(Criteria.where("id").is(23L)) //
+				.sort(Sort.by(Sort.Order.asc("id")));
+
+		String sql = sqlGenerator.selectByQuery(query, new MapSqlParameterSource());
+
+		assertThat(sql).contains( //
+				"SELECT", //
+				"FROM dummy_entity", //
+				"LEFT OUTER JOIN referenced_entity ref ON ref.dummy_entity = dummy_entity.id1", //
+				"LEFT OUTER JOIN second_level_referenced_entity ref_further ON ref_further.referenced_entity = ref.x_l1id", //
+				"WHERE dummy_entity.id1 = :id1", //
+				"ORDER BY dummy_entity.id1 ASC" //
+		);
+		assertThat(sql).containsOnlyOnce("LEFT OUTER JOIN referenced_entity ref ON ref.dummy_entity = dummy_entity.id1");
+		assertThat(sql).containsOnlyOnce("LEFT OUTER JOIN second_level_referenced_entity ref_further ON ref_further.referenced_entity = ref.x_l1id");
+	}
+
 	@Test // DATAJDBC-131, DATAJDBC-111
 	void findAllByProperty() {