Sha256: 2e155bf8a829ec1ffdbb917a4659e4fea24423a440a5c9147db040986acaed53
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Size: 519 Bytes
Versions: 9
Compression:
Stored size: 519 Bytes
Contents
Relational summarization (group-by + aggregate ops)
SYNOPSIS
#(signature)
OPTIONS
#(summarized_options)
DESCRIPTION
This operator summarizes input tuples over a projection given by BY.
SUMMARIZATION is a mapping between attribute names and summarizing
expressions.
With the allbut option, the operator uses all attributes not specified
in BY as the projection key.
EXAMPLE
# Compute the sum of supplied quantities, by supplier id
!(alf summarize supplies -- sid -- total_qty "sum{ qty }")
Version data entries
9 entries across 9 versions & 2 rubygems