The partition size can be any positive integer but should be set so that the supply of numbers within any one partition is not likely to be exhausted.
For columns of type INT or UNSIGNED INT, the default partition size is 216 = 65536; for columns of other types the default partition size is 232 = 4294967296. Since these defaults may be inappropriate, it is best to specify the partition size explicitly.
Default partition sizes for some data types are different in UltraLite applications than in SQL Anywhere databases. Declare the partition size explicitly if you want different databases to remain consistent.