services/horizon: Use percentile_disc in fee stats query #1857
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When looking at the Dashboard I realized that when there are a lot of transactions with normal fees and one tx with a much bigger fee the p99 can be interpolated to a huge number. See:
I checked the last few ledgers at the moment of the screenshot and no transaction had such a big fee.
This commit fixes fee stats query to use Postgres'
percentile_disc
instead ofpercentile_cont
.