GitHub user Kxrma47 added a comment to the discussion: Apache Cloudberry 
through ODBC into Apache Arrow (adbcBridge 0.1.0) — is multi-argument unnest a 
safe bulk-ingest path on Cloudberry?

The probe shows that the PostgreSQL-compatible path works today, but I would 
not make the banner the compatibility contract. Enable it through a capability 
test run in a rolled-back transaction, and retain the multi-row fallback. The 
probe should include unequal-length arrays because PostgreSQL pads shorter 
arrays with NULL, plus a distributed table and the AO storage modes you already 
test. That protects the bridge if planner or fork behavior changes without 
changing the version banner.

PostgreSQL documents multi-array UNNEST here: 
https://www.postgresql.org/docs/14/functions-array.html. Until Cloudberry 
documents an equivalent stability guarantee, capability detection is safer than 
a permanent fork allow-list.

GitHub link: 
https://github.com/apache/cloudberry/discussions/1939#discussioncomment-18311053

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