[FEAT MERGE] Lob SQL refactoring (Mem-LobLocator, expressions and dbms_lob adaptions)

Co-authored-by: chaser-ch <chaser.ch@antgroup.com>

unittest/sql/engine/px/test_slice_calc.cpp

@@ -69,7 +69,8 @@ void TestPkeyRangeSliceCalc::SetUp()
       ObCmpNullPos::NULL_LAST,
       ObCollationType::CS_TYPE_BINARY,
       SCALE_UNKNOWN_YET,
-      false/*is_orace_mode*/);
+      false/*is_orace_mode*/,
+      false);
   ASSERT_EQ(OB_SUCCESS, sort_cmp_funcs_.push_back(cmp_func));
   int_datum_.int_ = &tmp_int_;
   fake_calc_part_id_expr_ = reinterpret_cast<ObExpr *>(&tmp_int_);