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Query mysql with System.Linq.Expression Not operator throw exception

in .Net Core 3.1 with Pomelo.EntityFrameworkCore.MySql version 3.2.4 the expression work properly. when I upgrade to .Net 5 with Pomelo.EntityFrameworkCore.MySql version 5..0.0-alpha.2 the linq ...
note

（エラー）【MySQL】Expression #1 of SELECT list is not in...

自分用の備忘録です。 参考記事はこちらです。 ポイント ①sql_mode=only_full_group_byと互換性がない ② 全てをselectしているの ...
GitHub

Quick search error (MySQL 8 and REGEXP) #1118

"Prior to MySQL 8.0.4, MySQL used the Henry Spencer regular expression library to support regular expression operations, rather than International Components for Unicode (ICU)." ...
findnerd.com

How to use regular expression in mysql query?

This will select the data of all employees whose name ends with either 1 or 2 or 3 or 4 ...