Hi all!
I'm confused by planner choice: seqscan but not index scan when index scan cost 
is much cheaper.
1st plan: https://explain.depesz.com/s/Cti#l8
2nd plan (with "set enable_seqscan = off"): https://explain.depesz.com/s/qn0I#l8

Look at 8th row: this nested loop decided to join the second node by using 
seqscan (1st plan) when index is available (2nd plan). Index scan is much 
cheaper (0.430 over 257.760). 

What am I missing?

And thanks for any reply!


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