How to i get data type "mvarchar" in PowerBI?

[ozisidob]

Добрый день! У меня есть база даных, работающая на PostgreSQL. После получения данных типа "строка" Power BI выдает ошибку :
"'The field 'description' has a type currently unknown to Npgsql (OID 16421). You can retrieve it as a string by marking it as unknown,
please see the FAQ.'". Колонка 'description' в базе PostgreSQL имеет тип данных "mvarchar", получается Power BI не работает с таким типом данных (mvarchar)?
Спасибо!

For English:
Good afternoon! I have a database running on PostgreSQL. After receiving data of type "string" Power BI gives an error:  "'The field' description 'has a type currently unknown to Npgsql (OID 16421). You can retrieve it as a string by marking it as unknown,  Please see the FAQ. '". The column' description 'in the PostgreSQL database has the data type" mvarchar ", it turns out Power BI does not work with this type of data (mvarchar)?
Thank you!

[livesid]

Добрый день. Вы решили проблему с преобразованием типов "mvarchar" и "mchar" в PowerBI? У меня такая же проблема.

Hello. Have you solved the problem with converting the types "mvarchar" and "mchar" to PowerBI? I have the same problem.

[Greg_Deckler]

Looks like the error cited here:

http://www.npgsql.org/doc/faq.html

Not sure if there is a way to tag that as "unknown" in Power BI.