Limits on instances
Item | Limit | |
Maximum length of an instance name | 30 characters | |
Maximum length of a field name | 30 characters | |
Limits on fields
Item | Limit |
Valid values of a field of the INT type | -2^63 to 2^63-1 |
Maximum length of a field of the STRING type | 65,535 bytes |
Maximum length of the title field | 64 characters |
Limits on application-level data push
Item | Limit |
Maximum number of documents that you call the API to push each time | 1,000. For better performance, we recommend that you push 100 documents each time. We also recommend that you package the documents to be pushed. |
Maximum number of times that you can call the API to push data per second | 500. If you have pushed data 500 times in a second, a new request fails, and the error message "rate exceeds app quota" is displayed. |
Maximum size of an API request | 2 MB. If the size of an API request exceeds 2 MB, the request fails, and the error message "rate exceeds app quota" is displayed. |
Maximum size of API requests per second | 2 MB. If the total size of API requests sent in a second exceeds 2 MB, the current request fails, and the error message "rate exceeds app quota" is displayed. |
Maximum size of a document | 1 MB. If the size of a document exceeds 1 MB, the document fails to be synchronized, and the error message "The total size of documents exceed" is displayed. |
Non-printable reserved characters that cannot be contained in data
Character code | Display format in Emacs or Vi |
"\x1E\n" | ^^ |
"\x1F\n" | ^_ |
"\x1C" | ^\ |
"\x1D" | ^] |
"\x03" | ^C |
Usage notes
If a field includes the preceding non-printable characters, the record is not synchronized to the application.
Non-printable characters such as \u0002 and \u0003 are automatically converted to \t.
The engine supports the following character sets:
CJK_1 (\xe2[\xba-\xbf][\x80-\xbf])
CJK_2 ([\xe3-\xe9][\x80-\xbf][\x80-\xbf])
FULLWIDTH_1 (\xef[\xbc-\xbe][\x80-\xbf])
FULLWIDTH_2 (\xef\xbf[\x80-\xaf])