noirello opened a new pull request #959:
URL: https://github.com/apache/orc/pull/959
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### What changes were proposed in this pull request?
Improve parsing schema string with `Type::buildTypeFromString` to handle
quoted field names and have stricter validations.
### Why are the changes needed?
The current implementation cannot handle quoted field names and allows
parsing string schemas that the Java implementation would reject (e.g.
`struct<bigint>`, `map(boolean,float)`). It also cannot parse schema with
`timestamp with local time zone` in the root.
### How was this patch tested?
Ran the existing test suites locally with the newly added tests for quoted
field names and invalid schemas.
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