OData url $inlinecount=allpages has no effect

http://localhost/Products?$inlinecount=allpages

{"error":{"code":"","message":"The query parameter "$inlinecount" is not supported."}}

Does

need to add something to the webapiconfig file to work?

What"s the difference between

and this and $count=true ?

Mar.14,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e50d64-66a86.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e50d64-66a86.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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