branch-4.2: [improvement](datasource) Bound and fairly schedule external scan planning (#69298) - #69986

branch-4.2: [improvement](datasource) Bound and fairly schedule external scan planning (#69298)#69986

yiguolei merged 4 commits into

apache:branch-4.2apache/doris:branch-4.2from

924060929:codex/backport-69298-42924060929/incubator-doris:codex/backport-69298-42Copy head branch name to clipboard