Deprecate the pgsql endpoint

[tillrohrmann]

As a step towards removing the pgsql endpoint, we need to first deprecate it. By deprecating, I suggest to hide the relevant config options and print a warning when someone is connecting to the endpoint (if this is possible). In the next version, we can then remove it.

[lsytj0413]

/assign

[tillrohrmann]

Thanks for picking up this issue @lsytj0413. We were discussing whether making this feature also optional and disabling it by default could be worthwhile as well.

[lsytj0413]

Thanks for picking up this issue @lsytj0413. We were discussing whether making this feature also optional and disabling it by default could be worthwhile as well.

Ok, if there is any another options i will change the implementation.