SQL against openCypher per query shape, per wheel #361

Problem

I want SQL and openCypher compared per query shape on each wheel, to give language advice in the docs and to find Cypher performance outliers that deserve an upstream issue with a Java repro.

It is one row of the bindings study list. It was held on stale pins and re-pins after the 26.11.1 release wheels exist.

Priority: P3 (tier 1 of the re-pin order).

Acceptance

• The study is re-pinned to the 26.11.1 pair and dry-run
• It runs and is scored
• Language advice goes into the docs, outliers become issues with Java repros

Results and the scorer output go in this issue as comments. Numbers are generated by script from the result files, never typed.