[ARROW-15319] array supply mutable interface to allow the user to do in place update

• Type: Wish
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Component/s: C++
• External issue URL: https://github.com/apache/arrow/issues/30807

Language

C++

• Assignee: Unassigned
• Reporter: Weijie Tong
• Created: 13/Jan/22 09:09
• Updated: 11/Jan/23 11:36
• Resolved: 13/Jan/22 13:04

Description

Now ,arrow's c++ Array interface does not allow user to do in place update, it's a read only interface. If we want to update an existing array ,we need to re-create one by ArrayBuilder.
But some cases like we want to do sort an arrow array or do additional filter to an exsiting filter(i.e. a BooleanArray), we could do a in place update to save the additional allocating, ( for example ,we supply a mutable_raw_values() interface to NumericArray).

So want to know the community advice about the possible to add such mutable interace to the Array interface.

Issue Links

• duplicates: ARROW-15289 Support mutable array.