set new attributes indexed if needed

meilisearch-core/src/query_builder.rs

@@ -269,7 +269,7 @@ mod tests {
             let mut postings_lists = HashMap::new();
             let mut fields_counts = HashMap::<_, u16>::new();
 
-            let mut schema = Schema::default();
+            let mut schema = Schema::with_identifier("id");
 
             for (word, indexes) in iter {
                 let mut final_indexes = Vec::new();

meilisearch-core/src/serde/serializer.rs

@@ -305,7 +305,7 @@ pub fn serialize_value<'a, T: ?Sized>(
 where
     T: ser::Serialize,
 {
-    let field_id = schema.get_or_create_empty(attribute.clone())?;
+    let field_id = schema.get_or_create(attribute.clone())?;
 
     serialize_value_with_id(
         txn,
@@ -316,7 +316,7 @@ where
         documents_fields_counts,
         indexer,
         ranked_map,
-        value
+        value,
     )
 }
 

meilisearch-core/src/settings.rs

@@ -21,6 +21,7 @@ pub struct Settings {
     pub attributes_displayed: Option<HashSet<String>>,
     pub stop_words: Option<BTreeSet<String>>,
     pub synonyms: Option<BTreeMap<String, Vec<String>>>,
+    pub index_new_fields: Option<bool>,
 }
 
 impl Settings {
@@ -40,6 +41,7 @@ impl Settings {
             attributes_displayed: UpdateState::convert_with_default(settings.attributes_displayed, UpdateState::Clear),
             stop_words: UpdateState::convert_with_default(settings.stop_words, UpdateState::Clear),
             synonyms: UpdateState::convert_with_default(settings.synonyms, UpdateState::Clear),
+            index_new_fields: UpdateState::convert_with_default(settings.index_new_fields, UpdateState::Clear),
         }
     }
 }
@@ -61,6 +63,7 @@ impl Into<SettingsUpdate> for Settings {
             attributes_displayed: settings.attributes_displayed.into(),
             stop_words: settings.stop_words.into(),
             synonyms: settings.synonyms.into(),
+            index_new_fields: settings.index_new_fields.into(),
         }
     }
 }
@@ -184,6 +187,7 @@ pub struct SettingsUpdate {
     pub attributes_displayed: UpdateState<HashSet<String>>,
     pub stop_words: UpdateState<BTreeSet<String>>,
     pub synonyms: UpdateState<BTreeMap<String, Vec<String>>>,
+    pub index_new_fields: UpdateState<bool>,
 }
 
 impl Default for SettingsUpdate {
@@ -196,6 +200,7 @@ impl Default for SettingsUpdate {
             attributes_displayed: UpdateState::Nothing,
             stop_words: UpdateState::Nothing,
             synonyms: UpdateState::Nothing,
+            index_new_fields: UpdateState::Nothing,
         }
     }
 }

meilisearch-core/src/update/settings_update.rs

@@ -57,6 +57,7 @@ pub fn apply_settings_update(
         },
         _ => (),
     }
+
     match settings.ranking_distinct {
         UpdateState::Update(v) => {
             index.main.put_ranking_distinct(writer, v)?;
@@ -67,6 +68,16 @@ pub fn apply_settings_update(
         _ => (),
     }
 
+    match settings.index_new_fields {
+        UpdateState::Update(v) => {
+            schema.set_must_index_new_fields(v);
+        },
+        UpdateState::Clear => {
+            schema.set_must_index_new_fields(true);
+        },
+        _ => (),
+    }
+
     match settings.attributes_searchable.clone() {
         UpdateState::Update(v) => {
             schema.update_indexed(v)?;
@@ -109,6 +120,7 @@ pub fn apply_settings_update(
             }
         }
     };
+
     match settings.attribute_identifier.clone() {
         UpdateState::Update(v) => {
             schema.set_identifier(v)?;