…unction counterparts print[]/show[] except their output goes to stdout (native decker) or console.log (web decker) instead of the listener. handy for some kinds of debugging.

…sliding window of preceding frames, rather than strictly an instantaneous value.

…ided this primitive originally because it is much less frequently useful than sum/min/max/raze, but occasionally its absence is jarring.

Add nix build method

…e extract statement. Yielding a scalar or a list depending on the number of rows/groups in the input data was deeply problematic and confusing. Without this special case it is less convenient to use extract statements as a substitute for dictionary literals, but that was a very wasteful idiom to begin with. For the majority of existing code, this change will only require 'lifting' reducers from the column expression to outside the extract statement to continue working, and clumsy workarounds like '(),extrect ...' become unnecessary for other cases.

… ITER EACH...NEXT bytecodes.

…ates. This makes Lil query syntax much more flexible and reduces the need for subqueries. It does, however, come with some breaking changes to existing queries using multiple clauses and queries which depend upon the semantics of the 'gindex' magic column.