1. A method comprising: storing, at a staging table of a database, a data update generated based on a transaction performed with respect to a data table, wherein the data table is associated with one or more indexes, each index of the one or more indexes maintained externally to the database; maintaining the data update at the staging table at least until index update data is received at the database, wherein the index update data represents a modification to a particular index of the one or more indexes, the modification based on the data update.