# == Built-in Functions
# EvalFunctions
# AVG
# CONCAT
# COUNT
# DIFF
# MIN
# MAX
# SIZE
# SUM
# TOKENIZE

# == NullOperators
# isnull
# isnotnull
#
# == BooleanOperators
# and
# or
# not
#
# == DereferenceOperators
# tupledereference.
# mapdereference#
#
# == SignOperators
# positive+
# negative-
#
# == CastOperators
# (type)$0
# (type)alias
#
# == ArithmeticOperators
# addition+
# subtraction-
# multiplication*
# division/
# modulo%
# bincond?
#
# == ComparisonOperators
# Equal==
# notequal!=
# lessthan<
# greaterthan>
# lessthanorequalto<=
# greaterthanorequalto>=
# patternmatchingmatches