Why `where match(...)` but not `search match(...)`?

[pm771]

What is the difference between `... | when match(a,b)` and `...| search match(a,b)`?

Why in such cases `when` works and `search` does not? 

[isoutamo]

Hi

I hope that this link helps you

https://community.splunk.com/t5/Splunk-Search/What-s-the-difference-between-where-and-search-in-the-...

If not there are quite many other explanations what are the difference between search and where, which you could found by google. 
Basically search are using for search and where is using for expressions. 
r. Ismo