fix nested subquery bug

src/sql/resolver/expr/ob_expr_relation_analyzer.cpp

@@ -160,6 +160,8 @@ int ObExprRelationAnalyzer::visit_stmt(ObDMLStmt *stmt)
         LOG_WARN("relation expr is null", K(ret), K(expr));
       } else if (OB_FAIL(visit_expr(*expr, stmt->get_current_level()))) {
         LOG_WARN("failed to visit expr", K(ret));
+      } else if (OB_FAIL(expr->extract_info())) {
+        LOG_WARN("failed to extract expr info");
       }
     }
     if (OB_SUCC(ret) && stmt->is_select_stmt()) {

src/sql/rewrite/ob_transform_join_elimination.cpp

@@ -1234,7 +1234,7 @@ int ObTransformJoinElimination::left_join_can_be_eliminated(ObDMLStmt *stmt,
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("condition is null", K(ret));
         // todo 
-      } else if (condition->is_const_expr()) {
+      } else if (condition->is_static_scalar_const_expr()) {
         ObObj value;
         bool got_result = false;
         if (OB_FAIL(ObSQLUtils::calc_const_or_calculable_expr(ctx_->exec_ctx_,