"stricness of forward and reverse ... " should read "strictness of forward and inverse ... "
Fixed comment of lookup_agg_function().
Allow NULL to be passed for invtransfnexpr in build_aggregate_fnexprs()
Fixed field ordering in WindowStatePerAggData
Fixed comment of transValueCount in WindowStatePerAggData
Explain that AggCheckCallContext isn't meant for true window functions.
Unified two if's with identical conditions in advance_windowaggregate().
Fixed comment in retreat_windowaggregate()
Updated function comment of eval_windowaggregates() to explain how this differed from nodeAgg.c
Slightly refactored eval_windowaggregates().
Fixed aggregates.sql to match the current strictness constraints, i.e. that fwd and inv transition function must have the same strictness setting
Attempted to fix pg_dump
Renamed INVFUNC to INVSFUNC
Fixed typo in the recent refactoring of eval_windowaggregates()
Fixed trailing whitespace in eval_windowaggregates()
Fixed trailing whitespace in parse_agg.c