andygrove opened a new pull request, #4856:
URL: https://github.com/apache/datafusion-comet/pull/4856
## Which issue does this PR close?
<!-- No dedicated issue; this is a documentation cleanup. -->
N/A
## Rationale for this change
The Parquet/expression/operator compatibility guides linked a number of
closed issues and, in a couple of places, documented behaviors that have since
been fixed. Pointing readers at closed issues (including closed EPICs described
as "we are tracking the work") and listing already-fixed behavior as a
limitation is misleading. Compatibility docs should describe current
divergences from Spark and link only to open tracking issues.
## What changes are included in this PR?
- Remove entries that described Comet matching Spark rather than a real
divergence:
- `scans.md`: TimestampLTZ read as TimestampNTZ (closed #4219) and
duplicate field names in case-insensitive mode.
- Remove an entry describing behavior that is now fixed:
- `datetime.md`: Hour/Minute/Second applying timezone conversion to
TimestampNTZ inputs (closed #3180, fixed in #4753).
- Drop links to closed issues from entries whose surrounding text still
describes genuine current behavior, keeping the descriptive text:
- `cast.md`: closed EPICs #313 and #286.
- `spark-versions.md`: collation support (#1947, #4051).
- `datetime.md`: `TruncTimestamp` (#2649).
- `scans.md`: disabled vectorized reader (#4352).
- `operators.md`: sliding-frame decimal `sum`/`avg` (#4729).
After this change, the compatibility guide links only open issues.
## How are these changes tested?
Documentation-only change. Verified that no links to the removed closed
issues remain and that every issue still linked from the compatibility guide is
open.
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