fix(nc-gui): revise mysql xcdb & ext logic

packages/nc-gui/composables/useMultiSelect/convertCellData.ts

@@ -39,33 +39,10 @@ export default function convertCellData(
       return parsedDate.format('YYYY-MM-DD')
     }
     case UITypes.DateTime: {
-      let parsedDateTime = dayjs(value)
+      const parsedDateTime = dayjs(value)
       if (!parsedDateTime.isValid()) {
         throw new Error('Not a valid datetime value')
       }
-
-      if (isMysql && !dayjs.isDayjs(value)) {
-        if (value.indexOf('+') === -1) {
-          // insert a datatime cell -> copy and paste -> copy again -> paste
-          // e.g. value = 2023-05-12 08:06:54
-          if (value.slice(-1) !== 'Z') {
-            // e.g. 2023-05-11 12:00:00 -> 2023-05-11 12:00:00Z0
-            parsedDateTime = dayjs(value + 'Z')
-          }
-        }
-      }
-
-      if (isXcdbBase) {
-        // convert back to utc
-        // e.g. (mysql) 2023-05-11 12:00:00+00:00 -> 2023-05-11 12:00:00
-        // e.g. 2023-05-09T19:41:49+08:00 -> 2023-05-09 11:41:49
-        return parsedDateTime.utc().format(isMysql ? 'YYYY-MM-DD HH:mm:ss' : 'YYYY-MM-DD HH:mm:ssZ')
-      }
-      // External DB
-      if (isMysql) {
-        // convert back to utc
-        return parsedDateTime.utc().format('YYYY-MM-DD HH:mm:ss')
-      }
       return parsedDateTime.format('YYYY-MM-DD HH:mm:ssZ')
     }
     case UITypes.Time: {

packages/nc-gui/composables/useMultiSelect/index.ts

@@ -130,15 +130,6 @@ export function useMultiSelect(
             textToCopy = textToCopy.replace(/["']/g, '')
 
             const isMySQL = isMysql(columnObj.base_id)
-            if (isMySQL) {
-              if (textToCopy.indexOf('+') === -1) {
-                // insert a datatime cell -> copy and paste -> copy again
-                if (textToCopy.slice(-1) !== 'Z') {
-                  // e.g. 2023-05-11 12:00:00 -> 2023-05-11 12:00:00Z
-                  textToCopy += 'Z'
-                }
-              }
-            }
 
             let d = dayjs(textToCopy)