diff --git a/src/database/mod.rs b/src/database/mod.rs
index a91ab52..700d5d6 100644
--- a/src/database/mod.rs
+++ b/src/database/mod.rs
@@ -8,8 +8,8 @@ pub mod index;
 pub mod relation;
 pub mod row;
 pub mod table;
-pub mod select_processor;
-pub mod query_builder;
+pub mod query;
+
 
 #[derive(Serialize, Deserialize)]
 pub struct Database {
diff --git a/src/database/query/mod.rs b/src/database/query/mod.rs
new file mode 100644
index 0000000..ee26020
--- /dev/null
+++ b/src/database/query/mod.rs
@@ -0,0 +1,3 @@
+pub mod select_processor;
+pub mod query_builder;
+pub mod select_parser;
\ No newline at end of file
diff --git a/src/database/query_builder.rs b/src/database/query/query_builder.rs
similarity index 100%
rename from src/database/query_builder.rs
rename to src/database/query/query_builder.rs
diff --git a/src/database/query/select_parser.rs b/src/database/query/select_parser.rs
new file mode 100644
index 0000000..3600af1
--- /dev/null
+++ b/src/database/query/select_parser.rs
@@ -0,0 +1,28 @@
+use serde_json::{Map, Value, json};
+
+pub struct SelectParser {}
+impl SelectParser {
+  pub fn parse_selector_recursive(node: Vec<&str>) -> Value {
+    let mut output = Map::new();
+
+    for key in node {
+      if let Some(dot_index) = key.find('.') {
+        let next_key = key[..dot_index].to_string();
+        let next_node = key[dot_index + 1..].to_string();
+
+        let mut nested_value = SelectParser::parse_selector_recursive(vec![&next_node]);
+
+        if output.contains_key(&next_key) {
+          let current_value = output.get_mut(&next_key).unwrap().as_object_mut().unwrap();
+          current_value.append(nested_value.as_object_mut().unwrap());
+        } else {
+          output.insert(next_key, nested_value);
+        }
+      } else {
+        output.insert(key.to_string(), json!(key));
+      }
+    }
+
+    json!(output)
+  }
+}
\ No newline at end of file
diff --git a/src/database/select_processor.rs b/src/database/query/select_processor.rs
similarity index 76%
rename from src/database/select_processor.rs
rename to src/database/query/select_processor.rs
index a31dc69..696a90a 100644
--- a/src/database/select_processor.rs
+++ b/src/database/query/select_processor.rs
@@ -1,10 +1,7 @@
-use std::collections::HashMap;
-
 use serde_json::{json, Map, Value};
 
-use crate::database::relation::{OneToMany, OneToOne};
+use crate::database::{relation::{OneToMany, OneToOne}, Database, row::Row, query::select_parser::SelectParser};
 
-use super::{row::Row, Database};
 
 pub struct SelectProcessor {}
 
@@ -17,7 +14,7 @@ impl SelectProcessor {
         row: &Row,
         select: Vec<&str>,
     ) -> Map<String, Value> {
-        let asd = SelectProcessor::parse_node(select);
+        let asd = SelectParser::parse_selector_recursive(select);
         println!("Debugging parsed selector {asd}");
         SelectProcessor::recursive_traverse_resolver(database, table_name, row, &asd)
     }
@@ -46,8 +43,9 @@ impl SelectProcessor {
                     }
                     output.insert(key.to_owned(), json!(row_vec));
                 } else {
+                  let foreign_row = relation_rows.as_object().unwrap();
                     let parsed_row = SelectProcessor::recursive_traverse_resolver(
-                        database, table_name, &row, &value,
+                      database, table_name, foreign_row, &value,
                     );
 
                     output.insert(key.to_owned(), json!(parsed_row));
@@ -101,28 +99,4 @@ impl SelectProcessor {
     fn is_valid_key(key: &str) -> bool {
         key.chars().all(|c| c.is_ascii_lowercase() || c == '_')
     }
-
-    pub fn parse_node(node: Vec<&str>) -> Value {
-        let mut output = Map::new();
-
-        for key in node {
-            if let Some(dot_index) = key.find('.') {
-                let next_key = key[..dot_index].to_string();
-                let next_node = key[dot_index + 1..].to_string();
-
-                let mut nested_value = SelectProcessor::parse_node(vec![&next_node]);
-
-                if output.contains_key(&next_key) {
-                    let current_value = output.get_mut(&next_key).unwrap().as_object_mut().unwrap();
-                    current_value.append(nested_value.as_object_mut().unwrap());
-                } else {
-                    output.insert(next_key, nested_value);
-                }
-            } else {
-                output.insert(key.to_string(), json!(key));
-            }
-        }
-
-        json!(output)
-    }
 }
diff --git a/src/tests/mod.rs b/src/tests/mod.rs
index c64a5bc..ebe5620 100644
--- a/src/tests/mod.rs
+++ b/src/tests/mod.rs
@@ -2,4 +2,5 @@ mod database_test;
 mod index_test;
 mod relation_test;
 mod table_test;
-mod select_processor_test;
\ No newline at end of file
+mod select_processor_test;
+mod select_parser_test;
\ No newline at end of file
diff --git a/src/tests/select_parser_test.rs b/src/tests/select_parser_test.rs
new file mode 100644
index 0000000..70c8cd6
--- /dev/null
+++ b/src/tests/select_parser_test.rs
@@ -0,0 +1,43 @@
+#[cfg(test)]
+mod select_parser_test {
+    use crate::database::{
+       query::select_parser::SelectParser
+    };
+    use assert_json_diff::assert_json_include;
+    use serde_json::json;
+
+    #[test]
+    fn should_parse_selector_recursive() {
+        let output =
+            SelectParser::parse_selector_recursive(vec!["id", "food", "relation.*", "relation.food.*"]);
+        assert_json_include!(
+            actual: &output,
+            expected: &json!({
+             "id": "id",
+             "food": "food",
+             "relation": {
+               "*": "*",
+               "food": {
+                 "*": "*"
+               }
+             }
+             })
+        );
+    }
+    #[test]
+    fn should_parse_selector_recursive_one_level() {
+        let output = SelectParser::parse_selector_recursive(vec!["id", "name", "foods.*"]);
+        let json = serde_json::to_string_pretty(&output).unwrap();
+        println!("{json}");
+        assert_json_include!(
+            actual: &output,
+            expected: &json!({
+             "id": "id",
+             "name":"name",
+             "foods": {
+               "*": "*",
+             }
+             })
+        );
+    }
+}
diff --git a/src/tests/select_processor_test.rs b/src/tests/select_processor_test.rs
index aff7441..c6e2ebe 100644
--- a/src/tests/select_processor_test.rs
+++ b/src/tests/select_processor_test.rs
@@ -3,22 +3,23 @@
 #[cfg(test)]
 mod select_processor_test {
     use crate::database::{
-        relation::{OneToMany, Relation},
-        select_processor::SelectProcessor,
+        relation::{OneToMany, Relation, OneToOne},
         table::Table,
-        Database,
+        Database, query::select_processor::SelectProcessor,
     };
     use assert_json_diff::assert_json_include;
     use serde_json::json;
 
     pub fn initialize() -> Database {
         let cat_relations =
-            hashmap!["cat_food" => Relation::new("Food".to_string(), "one_to_many".to_string())];
+            hashmap!["cat_food" => Relation::new("Food".to_string(), "one_to_many".to_string()),
+            "cat_age_group" => Relation::new("AgeGroup".to_string(), "one_to_one".to_string())];
         let cat_table: Table = Table::new("Cats", "id", None, Some(cat_relations));
 
         let food_table: Table = Table::new("Food", "id", None, None);
+        let age_table: Table = Table::new("AgeGroup", "id", None, None);
 
-        let mut database: Database = Database::new(vec![cat_table, food_table]);
+        let mut database: Database = Database::new(vec![cat_table, food_table,age_table]);
 
         _ = database
             .get_table_mut("Food".to_string())
@@ -28,7 +29,16 @@ mod select_processor_test {
             .get_table_mut("Food".to_string())
             .unwrap()
             .insert_row(row!["id" => 12, "name" => "Dry Feed"]);
-        _ = database.get_table_mut("Cats".to_string()).unwrap().insert_row(row!["id" => 1, "name" => "Ozzy", "breed" => "mixed", "foods" => OneToMany::new(vec![123u64,12u64], "cat_food".to_string())]);
+        _ = database
+            .get_table_mut("AgeGroup".to_string())
+            .unwrap()
+            .insert_row(row!["id" => 99, "age" => "Young"]);
+        _ = database.get_table_mut("Cats".to_string()).unwrap().insert_row(row![
+        "id" => 1,
+        "name" => "Ozzy",
+        "breed" => "mixed",
+        "foods" => OneToMany::new(vec![123u64,12u64], "cat_food".to_string()),
+        "group" => OneToOne::new(99,"cat_age_group".to_string())]);
 
         return database;
     }
@@ -51,6 +61,22 @@ mod select_processor_test {
                  ]]
         );
     }
+#[test]
+    fn should_succed_select_processor_one_level_resolved_onetoone() {
+      let database = initialize();
+
+      let cat_table = database.get_table("Cats".to_string()).unwrap();
+      let cat_1 = cat_table.find_by_pk(1u64).unwrap();
+      let select = vec!["id", "name", "group.age"];
+      let output = SelectProcessor::selector(&database, &cat_table.name, cat_1, select);
+      assert_json_include!(
+        actual: &output,
+            expected:
+                &row!["id" => 1, "name" =>"Ozzy", "group"=> row![
+                  "age" => "Young"
+                ]]
+        );
+    }
     #[test]
     fn should_succed_select_processor_zero_level_resolved() {
         let database = initialize();
@@ -84,40 +110,4 @@ mod select_processor_test {
                  })
         );
     }
-
-    #[test]
-    fn should_parse_node() {
-        let output =
-            SelectProcessor::parse_node(vec!["id", "food", "relation.*", "relation.food.*"]);
-        let json = serde_json::to_string_pretty(&output).unwrap();
-        assert_json_include!(
-            actual: &output,
-            expected: &json!({
-             "id": "id",
-             "food": "food",
-             "relation": {
-               "*": "*",
-               "food": {
-                 "*": "*"
-               }
-             }
-             })
-        );
-    }
-    #[test]
-    fn should_parse_node_one_level() {
-        let output = SelectProcessor::parse_node(vec!["id", "name", "foods.*"]);
-        let json = serde_json::to_string_pretty(&output).unwrap();
-        println!("{json}");
-        assert_json_include!(
-            actual: &output,
-            expected: &json!({
-             "id": "id",
-             "name":"name",
-             "foods": {
-               "*": "*",
-             }
-             })
-        );
-    }
 }