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Diffstat (limited to 'Doc/library/sqlite3.rst')
| -rw-r--r-- | Doc/library/sqlite3.rst | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Doc/library/sqlite3.rst b/Doc/library/sqlite3.rst index 4890fc5..b037b45 100644 --- a/Doc/library/sqlite3.rst +++ b/Doc/library/sqlite3.rst @@ -324,8 +324,9 @@ Connection Objects Creates a user-defined function that you can later use from within SQL statements under the function name *name*. *num_params* is the number of - parameters the function accepts, and *func* is a Python callable that is called - as the SQL function. + parameters the function accepts (if *num_params* is -1, the function may + take any number of arguments), and *func* is a Python callable that is + called as the SQL function. The function can return any of the types supported by SQLite: bytes, str, int, float and None. @@ -340,7 +341,8 @@ Connection Objects Creates a user-defined aggregate function. The aggregate class must implement a ``step`` method, which accepts the number - of parameters *num_params*, and a ``finalize`` method which will return the + of parameters *num_params* (if *num_params* is -1, the function may take + any number of arguments), and a ``finalize`` method which will return the final result of the aggregate. The ``finalize`` method can return any of the types supported by SQLite: |