how to query if a column is named as a keyword in dolphindb?

Question

had a table contains a column named true in pic below [enter image description here][1]

and code like

select true from t

error : Syntax Error: [line #1] A table column [1] must be assigned a valid name.

why? [1]: https://i.stack.imgur.com/k6lna.png

Answer 1

You can use the sql function to query. The code is as follows:

sql(sqlCol("true"), t).eval()