fix: longRunningTransactionsAgeInSeconds #978
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- clock_timestamp will just return the current timestamp - what we actually want to know is the lowest timestamp of the xact_start column Signed-off-by: Roman Pertl <roman@pertl.org>
roock force-pushed the roock_fix_longest_query_seconds branch from 5e3acfc to 11c9972 Compare 
| The collector for long running transactions is not telling anything about long running transactions. Can we get this reviewed and merged, please? |
| Closing in favor of #1092 |
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Please also see:
#836 (comment)
and the original can be found here:
https://gitlab.com/gitlab-cookbooks/gitlab-exporters/-/blob/master/templates/postgres_exporter/queries.yaml.erb#L954
(the originally proposed version
MAX(EXTRACT(EPOCH FROM (clock_timestamp() - xact_start))) AS age_in_secondsis also correct, but return the seconds, not the timestamp.Using the current version the graphs look like this (flat line as this will always match the current time):
