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Continuous fuzzing roadmap toward OSS-Fuzz integration

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@LucaCappelletti94 ya está trabajando en esto.

Desde el 19/9/2026.

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Descripción

DuckDB PostgreSQL SQLite

I believe having continuous fuzzer will help us a lot in the process more effectively the increasing number of PR and avoid merging regressions, other than of course discover current errors.

I propose the following sequence of PRs:

  1. Switching from honggfuzz to cargo-fuzz/libFuzzer harness. I agree that in the past honggfuzz was the goto solution, and it was also my favourite, but cargo-fuzz has improved a lot in the last few years and is required by OSS-Fuzz and ClusterFuzzLite. Done in #2520
  2. ClusterFuzzLite PR gate + daily batch, same targets. Done in #2527
  3. Adding a harness executing the parse -> Display -> re-parse loop. Done in #2528
  4. Actually committed seed corpus. Ready for review in #2530
  5. Differential fuzzer for SQLite #2562
  6. Differential fuzzer for PostgreSQL #2563
  7. Differential fuzzer for DuckDB #2564
  8. Time ratio fuzzer. Ready for review in https://github.com/apache/datafusion-sqlparser-rs/pull/2580
  9. Clean code of harnesses & rest suite by moving the list of all currently supported dialects in an utility function in the main library.
  10. Bring up to speed the https://github.com/apache/datafusion-sqlparser-rs/pull/2193 Arbitrary PR
  11. OSS-Fuzz application (projects/datafusion-sqlparser-rs) which I believe we may be approved for, given the reasonable user pool of this crate. This PR should only be opened after we reach some fuzzer stability.
  12. Fuzz-byte-driven weighted recursive query generator (SparkFuzz/SQLsmith style)
Lenguaje dominante
Rust
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3.5k
Forks
780
Merge medio
4 d 10 h
PR fusionados (30 d)
60

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