Jack Wright 219b44a04f

Improve handling of columns with null values (#14588) ...

Addresses some null handling issues in #6882

# Description

This changes the implementation of guessing a column type when a schema
is not specified.

New behavior:
1. Use the first non-Value::Nothing value type for the columns data type
2. If the value type changes (ignoring Value::Nothing) in subsequent
values, the datatype will be changed to DataType::Object("Value", None)
3. If a column type does not have a value type,
DataType::Object("Value", None) will be assumed.

2024-12-14 18:36:01 -06:00

..

nu_dataframe

Improve handling of columns with null values (#14588)

2024-12-14 18:36:01 -06:00

nu_expression

Upgrading to polars 0.44 (#14478)

2024-11-29 19:39:07 -06:00

nu_lazyframe

Upgrade to polars 0.43 (#14148)

2024-10-23 19:14:24 +02:00

nu_lazygroupby

Removed CustomValue portion of CustomValue type name strings. (#14054)

2024-10-11 06:41:24 -05:00

nu_when

Removed CustomValue portion of CustomValue type name strings. (#14054)

2024-10-11 06:41:24 -05:00

file_type.rs

Merge polars sink and polars to-* to polars save (#13568)

2024-08-08 09:46:45 -07:00

mod.rs

Expression support polars replace and polars replace-all (#13726)

2024-08-29 13:59:44 -07:00

nu_schema.rs

Upgrade to polars 0.43 (#14148)

2024-10-23 19:14:24 +02:00

utils.rs

Upgrade to polars 0.43 (#14148)

2024-10-23 19:14:24 +02:00