raminqaf opened a new pull request, #29616:
URL: https://github.com/apache/flink/pull/29616
## What is the purpose of the change
Backport of #29579 to release-2.4. FLINK-40996 (#29483) is already on
release-2.4. It made `PARSE_JSON` and `TRY_PARSE_JSON` share one generated
parse, and that parse builds the `PARSE_JSON` error on every failure. So
without this commit, every row `TRY_PARSE_JSON` rejects in 2.4 pays for a UTF-8
scan, a copy of the input and a `TableRuntimeException`, then drops them. 2.3
returned NULL right after the parser failed. Results do not change.
## Brief change log
- Cherry-pick of 34c36e63714, applied without conflicts
## Verifying this change
`JsonParseReuseTest`, `JsonFunctionsITCase`, `VariantSemanticTest` and
`CastFunctionITCase` pass on this branch.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: no
- The serializers: no
- The runtime per-record code paths (performance sensitive): yes. It
removes work from the failure path of `TRY_PARSE_JSON`.
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? not applicable
---
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Generated-by: Claude Code 2.1.310 (Claude Opus 5.5)
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