Support for the Map data type

[shenghaoyang]

Hello,

Thanks for the crate!

Are there any plans to add support for Maps to the library? I'm trying to use that for dynamic data to get away from stuffing a map-like object as a string / etc.

Trying to figure out how to get started on that - does anyone have any good ideas?

Relevant documentation:

• Data type reference: https://clickhouse.tech/docs/en/sql-reference/data-types/map/
• Map functions: https://clickhouse.tech/docs/en/sql-reference/functions/tuple-map-functions/

[petar-dambovaliev]

I am working on a map implementation

[petar-dambovaliev]

@suharev7 the error handling in this library is not good. A lot of places just tell you ops, an error. It doesn't tell you what is the wrong value/type you gave and what are the correct ones. This also needs to be fixed because working on it is painful.

[suharev7]

Thanks for the comment, but I would appreciate it if you could point out specific cases where you lacked some information about error.

[petar-dambovaliev]

Thanks for the comment, but I would appreciate it if you could point out specific cases where you lacked some information about error.

For example, Err(Error::FromSql(FromSqlError::OutOfRange)); When i had a typo in the column i want to get, it didn't tell me which value was no existing and which values were available.