diff --git a/include/index.h b/include/index.h
index 45ce8172..3a511ba0 100644
--- a/include/index.h
+++ b/include/index.h
@@ -540,10 +540,6 @@ public:
     // in the query that have the least individual hits one by one until enough results are found.
     static const int DROP_TOKENS_THRESHOLD = 1;
 
-    // "_all_" is a special field that maps to all the ids in the index.
-    static constexpr const char* SEQ_IDS_FIELD = "_all_";
-    static constexpr const char* SEQ_IDS_FILTER = "_all_: 1";
-
     Index() = delete;
 
     Index(const std::string& name,
diff --git a/src/filter.cpp b/src/filter.cpp
index 18348ed6..95fbfefc 100644
--- a/src/filter.cpp
+++ b/src/filter.cpp
@@ -283,9 +283,6 @@ Option<bool> toFilter(const std::string expression,
             }
         }
         return Option<bool>(true);
-    } else if (field_name == Index::SEQ_IDS_FIELD) {
-        filter_exp = {field_name, {}, {}};
-        return Option<bool>(true);
     }
 
     auto field_it = search_schema.find(field_name);
diff --git a/src/filter_result_iterator.cpp b/src/filter_result_iterator.cpp
index c4dcd0b5..88485aa4 100644
--- a/src/filter_result_iterator.cpp
+++ b/src/filter_result_iterator.cpp
@@ -588,18 +588,6 @@ void filter_result_iterator_t::init() {
         filter_result.docs = new uint32_t[result_ids.size()];
         std::copy(result_ids.begin(), result_ids.end(), filter_result.docs);
 
-        seq_id = filter_result.docs[result_index];
-        is_filter_result_initialized = true;
-        return;
-    } else if (a_filter.field_name == Index::SEQ_IDS_FIELD) {
-        if (index->seq_ids->num_ids() == 0) {
-            is_valid = false;
-            return;
-        }
-
-        approx_filter_ids_length = filter_result.count = index->seq_ids->num_ids();
-        filter_result.docs = index->seq_ids->uncompress();
-
         seq_id = filter_result.docs[result_index];
         is_filter_result_initialized = true;
         return;
diff --git a/src/index.cpp b/src/index.cpp
index 207c44bb..e8634a3b 100644
--- a/src/index.cpp
+++ b/src/index.cpp
@@ -2389,11 +2389,7 @@ Option<bool> Index::search(std::vector<query_tokens_t>& field_query_tokens, cons
 
         // if filters were not provided, use the seq_ids index to generate the list of all document ids
         if (no_filters_provided) {
-            const std::string doc_id_prefix = std::to_string(collection_id) + "_" + Collection::DOC_ID_PREFIX + "_";
-            Option<bool> parse_filter_op = filter::parse_filter_query(SEQ_IDS_FILTER, search_schema,
-                                                                      store, doc_id_prefix, filter_tree_root);
-
-            filter_result_iterator = new filter_result_iterator_t(collection_name, this, filter_tree_root);
+            filter_result_iterator = new filter_result_iterator_t(seq_ids->uncompress(), seq_ids->num_ids());
             filter_iterator_guard.reset(filter_result_iterator);
 
             approx_filter_ids_length = filter_result_iterator->approx_filter_ids_length;
@@ -2514,13 +2510,6 @@ Option<bool> Index::search(std::vector<query_tokens_t>& field_query_tokens, cons
             filter_result_iterator->reset();
         }
 
-        // filter tree was initialized to have all sequence ids in this flow.
-        if (no_filters_provided) {
-            delete filter_tree_root;
-            filter_tree_root = nullptr;
-            approx_filter_ids_length = 0;
-        }
-
         uint32_t _all_result_ids_len = all_result_ids_len;
         curate_filtered_ids(curated_ids, excluded_result_ids,
                             excluded_result_ids_size, all_result_ids, _all_result_ids_len, curated_ids_sorted);