Hi there, is anyone here using

EXPLAIN ESTIMATED_COST

to get an estimate for resource usage of a given Flink SQL query? If so how do you interpret the values given for cpu, memory, io etc? Results look like this.

== Optimized Physical Plan ==
TableSourceScan(..., cumulative cost ={1.0E8 rows, 1.0E8 cpu, 2.4E9 io, 0.0 network, 0.0 memory})

We have run some experiments, comparing the explained costs to actually observed resource consumption and comparing explained costs for different query modification but so far the values make little sense to us 😄