From r..._at_tarkus.mx on July 03, 2013 00:30:23

What steps will reproduce the problem? 1.- Define a table containing a blob field
2.- Try to insert or update a row assigning that field data > 64kb What is the expected output? What do you see instead? It's expected that the field will contain the data assigned, just as it functions when the data < 64kb What version of the product are you using? On what operating system? Using web2py 2.5.1, fdb 1.4 Please provide any additional information below. This occurs because Firebird has a 64kb limit on the size of parameters. According to fdb documentation, a blob parameter has to be manipulated as a file-like object.
cur.execute("insert into blob_test values (?)", (StringIO('abcdef'),))

Original issue: http://code.google.com/p/web2py/issues/detail?id=1571