diff --git a/include/my_base.h b/include/my_base.h
index 038045dde2a..1d59262f680 100644
--- a/include/my_base.h
+++ b/include/my_base.h
@@ -218,9 +218,7 @@ enum ha_extra_function {
   /** Start writing rows during ALTER TABLE...ALGORITHM=COPY. */
   HA_EXTRA_BEGIN_ALTER_COPY,
   /** Finish writing rows during ALTER TABLE...ALGORITHM=COPY. */
-  HA_EXTRA_END_ALTER_COPY,
-  /** IGNORE is being used for the insert statement */
-  HA_EXTRA_IGNORE_INSERT
+  HA_EXTRA_END_ALTER_COPY
 };
 
 /* Compatible option, to be deleted in 6.0 */
diff --git a/sql/ha_partition.cc b/sql/ha_partition.cc
index 66418679794..91f9c536096 100644
--- a/sql/ha_partition.cc
+++ b/sql/ha_partition.cc
@@ -9474,7 +9474,6 @@ int ha_partition::extra(enum ha_extra_function operation)
   case HA_EXTRA_STARTING_ORDERED_INDEX_SCAN:
   case HA_EXTRA_BEGIN_ALTER_COPY:
   case HA_EXTRA_END_ALTER_COPY:
-  case HA_EXTRA_IGNORE_INSERT:
     DBUG_RETURN(loop_partitions(extra_cb, &operation));
   default:
   {
diff --git a/sql/sql_insert.cc b/sql/sql_insert.cc
index 73044c60c20..b5c8542ca92 100644
--- a/sql/sql_insert.cc
+++ b/sql/sql_insert.cc
@@ -2176,9 +2176,6 @@ int write_record(THD *thd, TABLE *table, COPY_INFO *info, select_result *sink)
     goto after_trg_or_ignored_err;
   }
 
-  /* Notify the engine about insert ignore operation */
-  if (info->handle_duplicates == DUP_ERROR && info->ignore)
-    table->file->extra(HA_EXTRA_IGNORE_INSERT);
 after_trg_n_copied_inc:
   info->copied++;
   thd->record_first_successful_insert_id_in_cur_stmt(table->file->insert_id_for_cur_row);
diff --git a/sql/sql_table.cc b/sql/sql_table.cc
index f7588890a4d..15c853d8b7b 100644
--- a/sql/sql_table.cc
+++ b/sql/sql_table.cc
@@ -11301,9 +11301,6 @@ copy_data_between_tables(THD *thd, TABLE *from, TABLE *to,
     }
     else
     {
-      /* In case of alter ignore, notify the engine about it. */
-      if (ignore)
-        to->file->extra(HA_EXTRA_IGNORE_INSERT);
       DEBUG_SYNC(thd, "copy_data_between_tables_before");
       found_count++;
       mysql_stage_set_work_completed(thd->m_stage_progress_psi, found_count);
diff --git a/storage/innobase/handler/ha_innodb.cc b/storage/innobase/handler/ha_innodb.cc
index 0db27a1e2d0..b440613c13f 100644
--- a/storage/innobase/handler/ha_innodb.cc
+++ b/storage/innobase/handler/ha_innodb.cc
@@ -15732,13 +15732,6 @@ ha_innobase::extra(
 	case HA_EXTRA_RESET_STATE:
 		reset_template();
 		trx->duplicates = 0;
-		/* fall through */
-	case HA_EXTRA_IGNORE_INSERT:
-		/* HA_EXTRA_IGNORE_INSERT is very similar to
-		HA_EXTRA_IGNORE_DUP_KEY, but with one crucial difference:
-		we want !trx->duplicates for INSERT IGNORE so that
-		row_ins_duplicate_error_in_clust() will acquire a
-		shared lock instead of an exclusive lock. */
 	stmt_boundary:
 		trx->end_bulk_insert(*m_prebuilt->table);
 		trx->bulk_insert = false;
diff --git a/storage/mroonga/ha_mroonga.cpp b/storage/mroonga/ha_mroonga.cpp
index 78a48b32f10..a39de1d991b 100644
--- a/storage/mroonga/ha_mroonga.cpp
+++ b/storage/mroonga/ha_mroonga.cpp
@@ -596,9 +596,6 @@ static const char *mrn_inspect_extra_function(enum ha_extra_function operation)
     inspected = "HA_EXTRA_NO_AUTOINC_LOCKING";
     break;
 #endif
-  case HA_EXTRA_IGNORE_INSERT:
-    inspected = "HA_EXTRA_IGNORE_INSERT";
-    break;
   }
   return inspected;
 }