Page: https://www.postgresql.org/docs/current/textsearch-intro.html
The documentation says: tsvector @@ tsquery tsquery @@ tsvector text @@ tsquery text @@ text The first two of these we saw already. The form text @@ tsquery is equivalent to to_tsvector(x) @@ y. The form text @@ text is equivalent to to_tsvector(x) @@ plainto_tsquery(y). Question: In the expression: to_tsvector(x) @@ plainto_tsquery(y) what do x and y refer to exactly? are they correspond to the left-hand and right-hand sides of the original expression (text @@ text) ? if yes , i think it's better to mention the order of the x and y like : (x @@ y ) or ( y @@ x) thanks
