diff --git a/storage/innobase/row/row0mysql.c b/storage/innobase/row/row0mysql.c index 4a834c4efc2..2058363c786 100644 --- a/storage/innobase/row/row0mysql.c +++ b/storage/innobase/row/row0mysql.c @@ -1447,7 +1447,12 @@ run_again: srv_n_rows_updated++; } - row_update_statistics_if_needed(prebuilt->table); + /* We update table statistics only if it is a DELETE or UPDATE + that changes indexed columns, UPDATEs that change only non-indexed + columns would not affect statistics. */ + if (node->is_delete || !(node->cmpl_info & UPD_NODE_NO_ORD_CHANGE)) { + row_update_statistics_if_needed(prebuilt->table); + } trx->op_info = ""; diff --git a/storage/innodb_plugin/row/row0mysql.c b/storage/innodb_plugin/row/row0mysql.c index feeb7fc80b7..813a99049fc 100644 --- a/storage/innodb_plugin/row/row0mysql.c +++ b/storage/innodb_plugin/row/row0mysql.c @@ -1422,7 +1422,12 @@ run_again: srv_n_rows_updated++; } - row_update_statistics_if_needed(prebuilt->table); + /* We update table statistics only if it is a DELETE or UPDATE + that changes indexed columns, UPDATEs that change only non-indexed + columns would not affect statistics. */ + if (node->is_delete || !(node->cmpl_info & UPD_NODE_NO_ORD_CHANGE)) { + row_update_statistics_if_needed(prebuilt->table); + } trx->op_info = "";