snowflakedb/snowpark-python v0.3.0

on GitHub

0.3.0 (2022-01-09)

New Features

• Added Column.isin(), with an alias Column.in_().
• Added Column.try_cast(), which is a special version of cast(). It tries to cast a string expression to other types and returns null if the cast is not possible.
• Added Column.startswith() and Column.substr() to process string columns.
• Column.cast() now also accepts a str value to indicate the cast type in addition to a DataType instance.
• Added DataFrame.describe() to summarize stats of a DataFrame.
• Added DataFrame.explain() to print the query plan of a DataFrame.
• DataFrame.filter() and DataFrame.select_expr() now accepts a sql expression.
• Added a new bool parameter create_temp_table to methods DataFrame.saveAsTable() and Session.write_pandas() to optionally create a temp table.
• Added DataFrame.minus() and DataFrame.subtract() as aliases to DataFrame.except_().
• Added regexp_replace(), concat(), concat_ws(), to_char(), current_timestamp(), current_date(), current_time(), months_between(), cast(), try_cast(), greatest(), least(), and hash() to module snowflake.snowpark.functions.

Bug Fixes

• Fixed an issue where Session.createDataFrame(pandas_df) and Session.write_pandas(pandas_df) raise an exception when the Pandas DataFrame has spaces in the column name.
• DataFrame.copy_into_table() sometimes prints an error level log entry while it actually works. It's fixed now.
• Fixed an API docs issue where some DataFrame APIs are missing from the docs.

Dependency updates

• Update snowflake-connector-python to 2.7.2, which upgrades pyarrow dependency to 6.0.x. Refer to the python connector 2.7.2 release notes for more details.