[ARROW-15102] [R] Allow creation of struct type with fields

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 6.0.1
• Component/s: R
• Labels: beginner-friendly good-first-issue
• External issue URL: https://github.com/apache/arrow/issues/30613

Language

R

• Assignee: Unassigned
• Reporter: Will Jones
• Created: 14/Dec/21 16:48
• Updated: 11/Jan/23 08:44

Description

StructTypes can be created with types:

struct(x = int32(), y = utf8())

But they cannot be created with fields yet. This means you cannot construct a StructType with a non-nullable field (since fields are nullable by default.) We should support constructing a StructType with fields, like we do for a Schema:

# Schema from fields
schema(field("x", int32()), field(y, utf8(), nullable=FALSE))
# Expected StructType from fields
struct(field("x", int32()), field(y, utf8(), nullable=FALSE))