Experiment
It has investigated the differences between the documents of “Search for Files” for v2 and v3. The following table shows the comparison of v2 and v3 for “Valid fields for files.list”. The column of DriveApp.searchFiles() means whether the query can be used for DriveApp.searchFiles().
| v2 | v3 | Difference | DriveApp.searchFiles() |
|---|---|---|---|
| title | name | different | v2: succeed, v3: fail |
| fullText | fullText | same | |
| mimeType | mimeType | same | |
| modifiedDate | modifiedTime | same | |
| lastViewedByMeDate | viewedByMeTime | different | v2: succeed, v3: fail |
| trashed | trashed | same | |
| starred | starred | same | |
| parents | parents | same | |
| owners | owners | same | |
| writers | writers | same | |
| readers | readers | same | |
| sharedWithMe | sharedWithMe | same | |
| properties | properties | same | |
| properties with visibility=‘PRIVATE’ | appProperties | different | v2: succeed, v3: fail |
| visibility | visibility | same |
Result
As the result, it is considered that DriveApp.searchFiles() is used as Drive API v2 yet.
References :
January 5th, 2018