[Flink] Cache batch side input materialization in Flink 2 - #39867

[Flink] Cache batch side input materialization in Flink 2#39867

pkuzmickas wants to merge 2 commits into

apache:masterapache/beam:masterfrom

pkuzmickas:pkuzmickas/flink-side-input-cache-prpkuzmickas/beam:pkuzmickas/flink-side-input-cache-prCopy head branch name to clipboard