[ARROW-10953] [R] Validate when creating Table with schema

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 4.0.0
• Component/s: R
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/26877
• Assignee: Ian Cook
• Reporter: Neal Richardson
• Created: 17/Dec/20 20:02
• Updated: 11/Jan/23 08:16
• Resolved: 10/Mar/21 19:55

Description

This segfaults:

tab <- Table$create(data.frame(), schema = schema(a = int32()))
as.data.frame(tab)

as does tab$a, i.e. just trying to extract the ChunkedArray.

Table$create(data.frame(b=1), schema = schema(a = int32())) creates a Table with column named a, overwriting the "b" column name.

tab <- Table$create(data.frame(b=2, c=3), schema = schema(a = int32())), i.e. providing fewer fields in the schema than there are columns in the data, segfaults.

There should be some validation that the schema matches the data provided.

Issue Links

• is a clone of: ARROW-10642 [R] Can't get Table from RecordBatchReader with 0 batches
• links to: GitHub Pull Request #9665