all: like operator/keyword for V ORM (#18020)

vlib/orm/orm.v

@@ -59,6 +59,7 @@ pub enum OperationKind {
 	lt // <
 	ge // >=
 	le // <=
+	orm_like // LIKE
 }
 
 pub enum MathOperationKind {
@@ -92,6 +93,7 @@ fn (kind OperationKind) to_str() string {
 		.lt { '<' }
 		.ge { '>=' }
 		.le { '<=' }
+		.orm_like { 'LIKE' }
 	}
 	return str
 }

vlib/orm/orm_custom_operators_test.v

@@ -0,0 +1,57 @@
+import db.sqlite
+
+struct User {
+	id      int    [primary; sql: serial]
+	name    string
+	country string
+}
+
+// like is an example function for checking that V allows using the `like` keyword as an identifier.
+fn like() {}
+
+fn test_like_operator() {
+	like()
+	db := sqlite.connect(':memory:')!
+
+	sql db {
+		create table User
+	}!
+
+	luke := User{
+		name: 'Luke'
+		country: 'US'
+	}
+	sql db {
+		insert luke into User
+	}!
+
+	james := User{
+		name: 'James'
+		country: 'UK'
+	}
+	sql db {
+		insert james into User
+	}!
+
+	lukas := User{
+		name: 'Lucas'
+		country: 'DE'
+	}
+	sql db {
+		insert lukas into User
+	}!
+
+	users_with_name_starting_with_letter_l := sql db {
+		select from User where name like 'L%'
+	}!
+
+	assert users_with_name_starting_with_letter_l.len == 2
+	assert users_with_name_starting_with_letter_l.filter(it.name.starts_with('L')).len == 2
+
+	users_with_name_with_second_letter_a := sql db {
+		select from User where name like '_a%'
+	}!
+
+	assert users_with_name_with_second_letter_a.len == 1
+	assert users_with_name_with_second_letter_a.first().name == james.name
+}