[jira] [Created] (ARROW-15102) [R] Allow creation of struct type with fields

["Will Jones (Jira)" <ji...@apache.org>]

Will Jones created ARROW-15102:
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             Summary: [R] Allow creation of struct type with fields
                 Key: ARROW-15102
                 URL: https://issues.apache.org/jira/browse/ARROW-15102
             Project: Apache Arrow
          Issue Type: Improvement
          Components: R
    Affects Versions: 6.0.1
            Reporter: Will Jones
             Fix For: 8.0.0


StructTypes can be created with types:

{code:R}
struct(x = int32(), y = utf8())
{code}

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:

{code:R}
# 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))
{code}



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