Make markdown table syntax more compatible

Most markdown parsers require at least one dash in the header separator, so

| id | name | email | bal | 
| -: | - | - | -: | 
| 5 | chris | foo | 12089 |

would be valid. I found that Gitlab's parser does not like this, and requires 3.

Making the separator 3 dashes long does not affect rendering anywhere else that I've seen, as the "at least one dash" requirement is met.

| id | name | email | bal | 
| ---: | --- | --- | ---: | 
| 5 | chris | foo | 12089 |

Your parser renders it correctly too:

Can the markdown output be updated to use 3 dashes instead of 1?

Sorry, this should be in Feature Discussion but I can't seem to edit after the fact.

Yes, I can do that. It's always the question if that's not breaking other things, which you already checked.

Done in r5143

it's a great option. Can you do it so that the table looks good without formatting? In the above example:

| id   | name  | email |   bal | 
| ---: | ----- | ----- | ----: | 
|    5 | chris | foo   | 12089 |

This is useful when the text is pasted somewhere where has no formatting or columns is a lot.

Hm, that requires some look-ahead into the data before creating any value, so Heidi knows the minimum width of each column, right? Should have some hardcoded max-width too I guess, so blob/text columns with megabytes of text don't get too wide, right?

Yes, you have to iterate through all the data to check the size. But as we will use the mysql client from cli is a table in the asci are drawn in good widths.

As for the field blob/text then you need to shift responsibility fully for the user. Displays a large column of this table will be wide.