Backport PR #42160 on branch 1.3.x (PERF: Check identity first before comparing the objects)#42163

Merged

simonjayhawkins merged 1 commit intopandas-dev:1.3.xfrom

meeseeksmachine:auto-backport-of-pr-42160-on-1.3.x

Jun 21, 2021

Commits on Jun 21, 2021

Backport PR #42160: PERF: Check identity first before comparing the objects

realead
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meeseeksmachine
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