I have created a sample sheet at https://docs.google.com/spreadsheets/d/1tzykNfURTm5RG91fQ7oF6kX0tGdwT8koRz7DKQ8Dosg/edit#gid=0.
Column A is formatted as Plain text
.
When considered numbers then 1.1
and 1.10
are equal. But when considered text, they are not.
However, COUNTIF
seems to consider them numbers even if it is formatted as a text.
Ultimately, I want to use this formula in a data validation to ensure the same ID is not added twice. As such, I don't think I can use ARRAYFORMULA
.