thswlsqls opened a new pull request, #9080:
URL: https://github.com/apache/paimon/pull/9080
### Purpose
fix #9077
- `HiveSplitGenerator.createPartitionPredicate()` parsed the Hive input dir
with `split("/")` and `split("=")` and never unescaped the values.
- Partition directories are escaped when registered, so a value such as
`2026-01-01 00:00` reaches the predicate as `2026-01-01 00%3A00`, matches
nothing, and the Hive query silently returns zero rows.
- Use `PartitionPathUtils.extractPartitionSpecFromPath()`, which unescapes;
this was the last production site parsing a partition path by hand.
- Values needing no escaping are unaffected; the tag branch and
`Optional.empty()` fallback are untouched.
### Tests
- Added `HiveSplitGeneratorTest#testGenerateSplitsForEscapedPartitionValue`
(escaped value now matches) and `#testGenerateSplitsForPlainPartitionValue`
(regression).
- Reverting the fix fails only the escaped-value test; `generateSplits` had
no prior coverage, so this adds cases rather than changing existing ones.
- `mvn -pl paimon-hive/paimon-hive-connector-common clean install` — 102
unit tests and 83 `*ITCase` tests passed.
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