[ai-assisted] fix(vector): points 조회 ORDER BY SQL 조립 수정

starter/studio-platform-starter-ai/src/main/java/studio/one/platform/ai/service/visualization/JdbcVectorProjectionPointRepository.java

@@ -93,7 +93,7 @@ SELECT COUNT(*)
                     ON p.vector_item_id = """ + pointJoinExpression() + """
                  WHERE p.projection_id = :projectionId
                 """ + where + """
-                 ORDER BY """ + JdbcVectorProjectionSql.orderByDisplayOrder(postgres) + """
+                """ + JdbcVectorProjectionSql.orderByDisplayOrderClause(postgres) + """
                  LIMIT :limit OFFSET :offset
                 """, params, rowMapper);
         return new ProjectionPointPage(total == null ? 0L : total, items);

starter/studio-platform-starter-ai/src/main/java/studio/one/platform/ai/service/visualization/JdbcVectorProjectionSql.java

@@ -48,4 +48,8 @@ static String orderByDisplayOrder(boolean postgres) {
         }
         return "p.display_order IS NULL, p.display_order, p.vector_item_id";
     }
+
+    static String orderByDisplayOrderClause(boolean postgres) {
+        return " ORDER BY " + orderByDisplayOrder(postgres);
+    }
 }

starter/studio-platform-starter-ai/src/test/java/studio/one/platform/ai/service/visualization/JdbcVectorProjectionSqlTest.java

@@ -29,4 +29,12 @@ void mysqlJsonTextUsesParameterizedPath() {
         assertThat(JdbcVectorProjectionSql.jsonText(null, ":filterKey0", false))
                 .isEqualTo("JSON_UNQUOTE(JSON_EXTRACT(metadata, CONCAT('$.', :filterKey0)))");
     }
+
+    @Test
+    void orderByDisplayOrderClauseKeepsSpaceAfterOrderBy() {
+        assertThat(JdbcVectorProjectionSql.orderByDisplayOrderClause(true))
+                .isEqualTo(" ORDER BY p.display_order NULLS LAST, p.vector_item_id");
+        assertThat("WHERE p.projection_id = :projectionId" + JdbcVectorProjectionSql.orderByDisplayOrderClause(true))
+                .contains(" ORDER BY p.display_order");
+    }
 }