Storage: Fix TableScan performance regression under wide-sparse table (#10379)#10385

ti-chi-bot wants to merge 1 commit intopingcap:release-8.1pingcap/tiflash:release-8.1from

ti-chi-bot:cherry-pick-10379-to-release-8.1ti-chi-bot/tiflash:cherry-pick-10379-to-release-8.1Copy head branch name to clipboard