[ARROW-7242] [C++] Coerce Arrow half-precision float to float32

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: C++, Python
• External issue URL: https://github.com/apache/arrow/issues/23537
• Assignee: Unassigned
• Reporter: Naor Volkovich
• Created: 23/Aug/18 11:36
• Updated: 11/Jan/23 07:52

Description

When trying to save a Pandas DF using "to_parquet" when that DF has a column with a dtype of float16, I get the error: "pyarrow.lib.ArrowNotImplementedError: Unhandled type for Arrow to Parquet schema conversion: halffloat"