Fix bug in update

tools/semanticalAnalyser/SelectAnalyser.cpp

@@ -234,7 +234,7 @@ namespace semanticalAnalysis {
         construct_join(context, firstVertexName);
 
         if (context.joinedTree == nullptr)
-            throw std::runtime_error("no or more than one root found: Table joining has failed");
+            throw semantic_sql_error("no or more than one root found: Table joining has failed");
     }
 
 }
\ No newline at end of file

tools/semanticalAnalyser/UpdateAnalyser.cpp

@@ -50,8 +50,10 @@ namespace semanticalAnalysis {
             bool shouldBeUpdated = false;
             for (auto &[column,value] : stmt->updates) {
                 shouldBeUpdated = iu.first.compare(column.name) == 0;
-                if (shouldBeUpdated) updateIUs.emplace_back( iu.second,value);
-                break;
+                if (shouldBeUpdated) {
+                    updateIUs.emplace_back( iu.second,value);
+                    break;
+                }
             }
             if (!shouldBeUpdated) updateIUs.emplace_back( iu.second,"");
         }