scovich commented on code in PR #9012:
URL: https://github.com/apache/arrow-rs/pull/9012#discussion_r2640273680
##########
parquet-variant/src/path.rs:
##########
@@ -112,11 +114,7 @@ impl<'a> From<Vec<VariantPathElement<'a>>> for
VariantPath<'a> {
/// Create from &str with support for dot notation
impl<'a> From<&'a str> for VariantPath<'a> {
fn from(path: &'a str) -> Self {
- if path.is_empty() {
- VariantPath::new(vec![])
- } else {
- VariantPath::new(path.split('.').map(Into::into).collect())
- }
+ VariantPath::new(path.split(".").flat_map(parse_path).collect())
Review Comment:
Interesting. It looks like the mini-parser I posted above is a strict subset
of the databricks syntax linked above. Would it be a reasonable starting point
to merge this PR and add the missing `['fieldName']` syntax as a follow-up? Or
just expand the above suggestion into a full parser right away?
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