name : start-query-planning.rst **To process query statement** The following ``start-query-planning`` example submits a request to process a query statement. :: aws lakeformation start-query-planning \ --cli-input-json file://input.json Contents of ``input.json``:: { "QueryPlanningContext": { "CatalogId": "012345678901", "DatabaseName": "tpc" }, "QueryString": "select * from dl_tpc_household_demographics_gov where hd_income_band_sk=9" } Output:: { "QueryId": "772a273f-4a62-4cda-8d98-69615ee8be9b" } For more information, see `Reading from and writing to the data lake within transactions <https://docs.aws.amazon.com/lake-formation/latest/dg/transaction-ops.html>`__ in the *AWS Lake Formation Developer Guide*.