devtechedge commented on PR #2618:
URL: 
https://github.com/apache/datafusion-sqlparser-rs/pull/2618#issuecomment-6197397202

   Thanks, both reviews are addressed in 4e846e6.
   
   `parse_do` now follows `dostmt_opt_list` using your suggestion: any run of 
code blocks and `LANGUAGE` items, with the language as an identifier or any 
string literal, kept in source order as `Vec<DoOption>` so every form 
round-trips.
   
   I added all your test cases.
   
   I ran `fuzz_postgres_accepts` from the DO seeds for 8 minutes (about 4.4M 
execs) and nothing came from `DO` parsing.
   
   What it did turn up are older issues elsewhere:
   
   - odd operator expressions in `UPDATE … SET` (e.g. `! + 0`)
   - non-ASCII dollar-quote tags failing in the tokenizer, which also breaks 
`SELECT`
   
   Happy to look at those in separate PRs.
   


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