如何转换要在sqlx API调用中使用的SQL语句？

I've been trying to query PostgreSQL ltree. Here in table tree, path has type ltree. I could write in psql:

SELECT id, path FROM tree WHERE path @ '12345'

with no problem. When I do in sqlx:

db.Get(&path, "SELECT id, path FROM tree WHERE path @ '$1'", entryID)

it keeps telling pq: operant syntax error. Not sure if there's a way to properly escape single quote in the query string. I tried this but still doesn't work:

db.Get(&path, `SELECT id, path FROM tree WHERE path @ ''$1''`, entryID)

Turns out I don't need the single quote around $1 at all. This query would work:

db.Get(&path, `SELECT id, path FROM tree WHERE path @ $1`, entryID)