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PostgreSQL, problems with Boolean type storing values as "T" and "F" breaking ORM

开发者 https://www.devze.com 2023-03-22 16:40 出处:网络
If I define a boolean data type in a Postgres table and query from it, the results for the boolean columns come back as \"t\" or \"f\".

If I define a boolean data type in a Postgres table and query from it, the results for the boolean columns come back as "t" or "f".

I'm using NPGSQL as my driver and Dapper as a ORM. This causes a problem because Dapper is unable to convert "t" or "f" into a boolean value, and all boolean values end up开发者_JAVA百科 as False.

Is there a way to change this behavior with Postgres, or do I need to hack around it by using a character data type?


Cast it to integer to get 0 or 1

SELECT boolean_value::INT ;

or to varchar to get 'true' or 'false'.

SELECT boolean_value::VARCHAR ;

Most DB drivers should be able to handle the one or the other.

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