April 08-15, 2024 — 8.14 Release Notes¶

Python UDTFs with vectorized process methods — General Availability¶

With this release, we are pleased to announce the general availability of Python UDTFs (user-defined table functions) with vectorized process methods. This new feature provides a convenient way to operate over rows in batches when the method returns one output row for each input row.

For more information, see Vectorized Python UDTFs.

Forecasting improvements in Snowflake Cortex ML Functions¶

With this release, we are pleased to announce that we have improved the algorithm behind Time-Series Forecasting, part of the Snowflake Cortex ML Functions suite of analysis tools. The underlying approach remains the same; rather, we have changed some parameters that, for most users, should:

• Reduce the incidence of trend extrapolation errors (incorrect trends)

• Improve accuracy on “noisy” time series

These improvements apply only to forecasting models trained with Snowflake 8.14 or later. Forecasting models trained with previous versions continue to use the earlier model parameters.