As part of this PR, also updated regression test cases that are related to
following JIRA issues as well.
PG-354 pg_stat_monitor: Remove pg_stat_monitor_settings view
Now we not using pg_stat_monitor_settings view, due to this change majority of
TAP testcase requried output changes.
PG-558: Create test case to verify the function names and count in PGSM.
Added additional output file for SQL test case.
PG-554: Remove redundant expected output files from regression.
Removed unnecessary output files in TAP testcases where these were not needed.
This commit adds following three sql based testcases:
1) Test unique application name set by user.
2) Histogram function is working properly as desired.
3) Error on insert is shown with proper message.
Naeem Akhter
Naeem Akhter