group_concat

Function group_concat 

Source
pub fn group_concat<'a, V, E>(expr: E) -> SQLExpr<'a, V, Text, Null, Agg>
where V: SQLParam + 'a, E: Expr<'a, V>,
Expand description

GROUP_CONCAT / STRING_AGG - concatenates values into a string.

Note: This is dialect-specific (GROUP_CONCAT in SQLite/MySQL, STRING_AGG in PostgreSQL). Returns Text type, nullable.