refactor(nocodb): add comments and remove try catch

packages/nocodb/src/db/BaseModelSqlv2.ts

@@ -3215,19 +3215,19 @@ class BaseModelSqlv2 {
     dateTimeColumns: Record<string, any>[],
     d: Record<string, any>,
   ) {
-    try {
     if (d) {
       dateTimeColumns.forEach((col) => {
         if (d[col.title]) {
           // e.g. 01.01.2022 10:00:00+05:30 -> 2022-01-01 04:30:00+00:00
           // e.g. 2023-05-09 11:41:49 -> 2023-05-09 11:41:49+00:00
           d[col.title] = dayjs(d[col.title])
+            // keep the local time
             .utc(true)
+            // show the timezone even for Mysql
             .format('YYYY-MM-DD HH:mm:ssZ');
         }
       });
     }
-    } catch {}
     return d;
   }
 
@@ -3249,6 +3249,9 @@ class BaseModelSqlv2 {
     return data;
   }
 
+  // SET TIME ZONE only works for the current session
+  // trigger before insert / update
+  // TODO: refactor - maybe there is a better approach
   private async setUtcTimezoneForPg() {
     if (this.isPg && (await this.isXcdbBase())) {
       await this.dbDriver.raw(`SET TIME ZONE 'UTC'`);