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Update file 0010_flamegraphs_for_postgres.md
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0010_flamegraphs_for_postgres.md

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@@ -158,12 +158,10 @@ That's it. Now you need to copy `profile.svg` to your machine and open it in, fo
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Here is the result for our process running an infinite EXPLAIN loop:
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<a href="./files/0010_flamegraph.svg">
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<a href="./files/0010_flamegraph.png">
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<img src="./files/0010_flamegraph.png" width="600"/>
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</a>
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(try clicking on it)
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It's very interesting that ~35% of CPU time is spent to analyzing if `Merge Join` is worth using, while eventually the planner picks a `Nested Loop`:
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```
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postgres=# explain (costs off) select

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