fix: allowEncodingChanges should allow set client_encoding=...

[vlsi]

fixes #1101

[codecov-io]

Codecov Report

Merging #1125 into master will increase coverage by 0.09%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master    #1125      +/-   ##
============================================
+ Coverage     67.25%   67.35%   +0.09%     
- Complexity     3678     3685       +7     
============================================
  Files           170      170              
  Lines         15643    15638       -5     
  Branches       2533     2531       -2     
============================================
+ Hits          10521    10533      +12     
+ Misses         3930     3921       -9     
+ Partials       1192     1184       -8

[dkaelbling]

I might be misreading the commit diffs, but did you also just remove support for setting "standard_conforming_strings"?

Also please don't emit a warning; callers already know they're doing something special by setting "allow_encoding_changes". Alarming all the users won't help :-)

[davecramer]

Looks like it is still there https://github.com/vlsi/pgjdbc/blob/1e724816285f927b06db2279be5217461ee9d47c/pgjdbc/src/main/java/org/postgresql/core/v3/QueryExecutorImpl.java#L2624