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Posted to commits@age.apache.org by GitBox <gi...@apache.org> on 2022/12/22 19:20:04 UTC

[GitHub] [age] jrgemignani commented on pull request #406: Changed age_head, age_last and age_properties to IMMUTABLE

jrgemignani commented on PR #406:
URL: https://github.com/apache/age/pull/406#issuecomment-1363261899

   I feel this is potentially risky as these are execution phase functions that operate on lists and values that may change underneath.
   
   https://www.postgresql.org/docs/current/xfunc-volatility.html - 
   
   "Labeling a function IMMUTABLE when it really isn't might allow it to be prematurely folded to a constant during planning, resulting in a stale value being re-used during subsequent uses of the plan. This is a hazard when using prepared statements or when using function languages that cache plans (such as PL/pgSQL)."


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