[FEATURE] Dollar quoted strings in PostgreSQL identified as columns

[tomershay]

Dollar quoted strings are identified as Column instead of StringValue.

This is PostgreSQL-only syntax: dollar-quoted strings ($$...$$) let users write multi-line strings with quotes and backslashes, without escaping.

Since this is PostgreSQL-specific syntax, it may not be a priority to implement, but I’m raising it here to start a discussion.

SELECT $$this is a string$$, test, 'text' FROM tbl;

Screenshot from the interactive demo:

[manticore-projects]

Greetings!

Dollar quoting like $$...$$ is no problem and seems to work already, though returning a column instead of a text which is wrong in case of defining functions.
However, there is Dollar quoting with tags like $tag$...$tag$ which is really trouble some but I have a branch already where I got this working by refactoring the whole Quoted identifier into a production (instead of a token).