Add tests for Find functions

src/test/kotlin/FieldTest.kt

@@ -233,7 +233,7 @@ class FieldTest {
     @DisplayName("toWhere generates for inArray (PostgreSQL)")
     fun toWhereInArrayPostgres() {
         Configuration.connectionString = ":postgresql:"
-        assertEquals("data->'even' ?| ARRAY[:it_0, :it_1, :it_2, :it_3]",
+        assertEquals("data->'even' ??| ARRAY[:it_0, :it_1, :it_2, :it_3]",
             Field.inArray("even", "tbl", listOf(2, 4, 6, 8), ":it").toWhere(),
             "Field WHERE clause not generated correctly")
     }

src/test/kotlin/OpTest.kt

@@ -61,7 +61,7 @@ class OpTest {
     @Test
     @DisplayName("IN_ARRAY uses proper SQL")
     fun inArraySQL() {
-        assertEquals("?|", Op.IN_ARRAY.sql, "The SQL for in-array is incorrect")
+        assertEquals("??|", Op.IN_ARRAY.sql, "The SQL for in-array is incorrect")
     }
 
     @Test