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62d16c7fc5
As first committed, this view reported on the file contents as they were at the last SIGHUP event. That's not as useful as reporting on the current contents, and what's more, it didn't work right on Windows unless the current session had serviced at least one SIGHUP. Therefore, arrange to re-read the files when pg_show_all_settings() is called. This requires only minor refactoring so that we can pass changeVal = false to set_config_option() so that it won't actually apply any changes locally. In addition, add error reporting so that errors that would prevent the configuration files from being loaded, or would prevent individual settings from being applied, are visible directly in the view. This makes the view usable for pre-testing whether edits made in the config files will have the desired effect, before one actually issues a SIGHUP. I also added an "applied" column so that it's easy to identify entries that are superseded by later entries; this was the main use-case for the original design, but it seemed unnecessarily hard to use for that. Also fix a 9.4.1 regression that allowed multiple entries for a PGC_POSTMASTER variable to cause bogus complaints in the postmaster log. (The issue here was that commit |
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