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"""
Query 2: Find bids with specific auction ids and show their bid price
This query selects Bids that have a particular auctiuon id, and output their
auction id with bid price.
It illustrates a simple filter.
"""
# pytype: skip-file
import apache_beam as beam
from apache_beam.testing.benchmarks.nexmark.queries import nexmark_query_util
from apache_beam.testing.benchmarks.nexmark.queries.nexmark_query_util import ResultNames
[docs]def load(events, metadata=None, pipeline_options=None):
return (
events
| nexmark_query_util.JustBids()
| 'filter_by_skip' >>
beam.Filter(lambda bid: bid.auction % metadata.get('auction_skip') == 0)
| 'project' >> beam.Map(
lambda bid: {
ResultNames.AUCTION_ID: bid.auction, ResultNames.PRICE: bid.price
}))