[ES|QL] prune columns when using fork #137907
Open
+642
−19
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In this PR we add support for column pruning for
FORKbranches. The main idea is that we apply pruning in two steps:FORK's output based on the actual needed attributes inPruneColumnsrule.FORKplan independently in the newly interoducedPrunceColumnsInForkBranches, with the same needed params as base (i.e.FORK's output). We then proceed to compute separately any additional needed params for each branch and keep/remove plans as perPruneColumns.Closes #136365