Checksums by default/optionally for >=9.3

[shaded-enmity]

Added in PostgreSQL 9.3 (https://wiki.postgresql.org/wiki/What%27s_new_in_PostgreSQL_9.3#Data_Checksums) it seems that this would be a sane default for initdb in common.sh scripts, or at least an env variable tunable, what do you guys think?

[praiskup]

-1 for default, -0 for an option. We could create env var for every postgresql option; let me first propose you postgresql-start/ hook first, where you can construct your own config file contents.. would that work?

[praiskup]

I forgot, there's also https://github.com/sclorg/postgresql-container/tree/5136552d8295de4884c217192eeab5e45c5a58ce/latest#postgresql-cfg

[pkubatrh]

From the doc this looks like an argument to the initdb call so I do not think postgresql-cfg would help. Unless it has a accompanying config option I have missed?

[praiskup]

Right :-) turning the brain on now.. so I guess we can not go without new option.

[pkubatrh]

Lets try taking a look at this in more detail to see what needs to be done to implement this.