PostgreSQL: Render prefix @ operator with a space - #2531
Open
LucaCappelletti94 wants to merge 2 commits into
Open
LucaCappelletti94 wants to merge 2 commits into
LucaCappelletti94 wants to merge 2 commits into
Conversation
LucaCappelletti94
marked this pull request as ready for review
September 19, 2026 18:52
This was referenced Sep 19, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
SELECT @ -2fails to round-trip on PostgreSQL. The prefix@(UnaryOperator::PGAbs) renders with no space, so the AST displays asSELECT @-2and re-parsing aborts in the tokenizer withExpected a valid binary operator after '@-', because@-is reserved as a geometric binary operator prefix. Found by thefuzz_parse_roundtriptarget introduced in #2530.PGAbsnow renders with a trailing space, joiningNOT,#,@-@,@@,?-and?|, which already use that arm for the same re-tokenization hazard, and matching the existing doc-comment example@ -9. The canonical output ofSELECT @abecomesSELECT @ a.