What is the maximum size of one BlobProperty in appengine? I'm not talking about of the Blobstore API, i'm referring to the property class BlobProperty
Please add a link who support your answers
+2
A:
The limit is 1 megabyte. Docs here.
Like db.Text, a db.Blob value can be as large as 1 megabyte, but is not indexed, and cannot be used in query filters or sort orders. The db.Blob class takes a str value as an argument to its constructor. Blobs are modeled using the BlobProperty class.
jbochi
2010-01-15 19:33:21
In practice, it's smaller than 1 MB, since the entire call to the datastore API is limited to 1MB; the actual biggest size is 1MB - the size of any other properties in the model (which may very well be 0) - serialization overhead (which is fairly small, but you still don't want to try stuffing exactly 1024*1024 bytes in a blob).
Wooble
2010-01-19 14:12:09