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topn_95 - PostgreSQL extension that returns the top values in a database
- Description:
TopN is an open source PostgreSQL extension that returns the top values
in a database according to some criteria. TopN takes elements in a data
set, ranks them according to a given rule, and picks the top elements in
that data set. When doing this, TopN applies an approximation algorithm
to provide fast results using few compute and memory resources.
The TopN extension becomes useful when you want to materialize top
values, incrementally update these top values, and/or merge top values
from different time intervals. If you're familiar with the PostgreSQL
HLL extension, you can think of TopN as its cousin.
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