SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 2) Literal \'aes-256-ctr\' (alias mode) Function hex (children 1) ExpressionList (children 1) Function encrypt (children 1) ExpressionList (children 4) Identifier mode Identifier input Identifier key32 Identifier iv TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier encryption_test