Amir Rohan wrote:

> it does fail the "dependent options" test:
> $ postgres -C "archive_mode"
> on
> $ postgres -C wal_level
> minimal
> no errors, great, let's try it:
> $ pg_ctl restart
> FATAL:  WAL archival cannot be enabled when wal_level is "minimal"

This complaint could be fixed we had a --check-config that runs the
check hook for every variable, I think.  I think that closes all the
syntax checks you want; then your tool only needs to worry about
semantic checks, and can obtain the values by repeated application of -C
<param> (or, more conveniently, have a new -C mode that takes no args
and prints the names and values for all parameters).

Álvaro Herrera      
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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