I was not convinced by the overall memory management around variables
to begin with, and it is even less so with their new copy management.
Maybe having a clean "Variables" data structure could help improve the
situation.
Ok!
Note that there is something for psql (src/bin/psql/variable.c) which may
or may not be shared. It should be checked before recoding eventually the
same thing.
--
Fabien.
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