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[NO ISSUE][COMP] Window operator runtime optimization

- user model changes: no

- storage format changes: no

- interface changes: no

Details:

- Add optimized runtime for window operator that computes

nested aggregates over the whole partition (unbounded frame)

- Do not generate unnecessary expressions when compiling

window operator with unbounded frame

Change-Id: If34d8eb05c069257c974f61810bee399136825fa

Reviewed-on: https://asterix-gerrit.ics.uci.edu/3124

Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>

Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>

Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu>

Reviewed-by: Ali Alsuliman <ali.al.solaiman@gmail.com>

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    ./win_opt_01.9.query.sqlpp
  1. … 8 more files in changeset.