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| <section id="module-apache_beam.testing.benchmarks.nexmark.queries.winning_bids"> |
| <span id="apache-beam-testing-benchmarks-nexmark-queries-winning-bids-module"></span><h1>apache_beam.testing.benchmarks.nexmark.queries.winning_bids module<a class="headerlink" href="#module-apache_beam.testing.benchmarks.nexmark.queries.winning_bids" title="Link to this heading"></a></h1> |
| <p>A transform to find winning bids for each closed auction. In pseudo CQL syntax:</p> |
| <p>SELECT Rstream(A.*, B.auction, B.bidder, MAX(B.price), B.dateTime) |
| FROM Auction A [ROWS UNBOUNDED], Bid B [ROWS UNBOUNDED] |
| WHERE A.id = B.auction AND B.datetime < A.expires AND A.expires < CURRENT_TIME |
| GROUP BY A.id</p> |
| <p>We will also check that the winning bid is above the auction reserve. Note that |
| we ignore the auction opening bid value since it has no impact on which bid |
| eventually wins, if any.</p> |
| <p>Our implementation will use a custom windowing function in order to bring bids |
| and auctions together without requiring global state.</p> |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindow"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.testing.benchmarks.nexmark.queries.winning_bids.</span></span><span class="sig-name descname"><span class="pre">AuctionOrBidWindow</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">start</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">end</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">auction_id</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">is_auction_window</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindow"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindow" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.window.html#apache_beam.transforms.window.IntervalWindow" title="apache_beam.transforms.window.IntervalWindow"><code class="xref py py-class docutils literal notranslate"><span class="pre">IntervalWindow</span></code></a></p> |
| <p>Windows for open auctions and bids.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindow.for_auction"> |
| <em class="property"><span class="pre">static</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">for_auction</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">timestamp</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">auction</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindow.for_auction"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindow.for_auction" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindow.for_bid"> |
| <em class="property"><span class="pre">static</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">for_bid</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">expected_duration_micro</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">timestamp</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bid</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindow.for_bid"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindow.for_bid" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindow.is_auction_window_fn"> |
| <span class="sig-name descname"><span class="pre">is_auction_window_fn</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindow.is_auction_window_fn"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindow.is_auction_window_fn" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowCoder"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.testing.benchmarks.nexmark.queries.winning_bids.</span></span><span class="sig-name descname"><span class="pre">AuctionOrBidWindowCoder</span></span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindowCoder"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowCoder" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">FastCoder</span></code></p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowCoder.is_deterministic"> |
| <span class="sig-name descname"><span class="pre">is_deterministic</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindowCoder.is_deterministic"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowCoder.is_deterministic" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowCoderImpl"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.testing.benchmarks.nexmark.queries.winning_bids.</span></span><span class="sig-name descname"><span class="pre">AuctionOrBidWindowCoderImpl</span></span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindowCoderImpl"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowCoderImpl" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">StreamCoderImpl</span></code></p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowCoderImpl.encode_to_stream"> |
| <span class="sig-name descname"><span class="pre">encode_to_stream</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">value</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stream</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">nested</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindowCoderImpl.encode_to_stream"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowCoderImpl.encode_to_stream" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowCoderImpl.decode_from_stream"> |
| <span class="sig-name descname"><span class="pre">decode_from_stream</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">stream</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">nested</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindowCoderImpl.decode_from_stream"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowCoderImpl.decode_from_stream" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowFn"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.testing.benchmarks.nexmark.queries.winning_bids.</span></span><span class="sig-name descname"><span class="pre">AuctionOrBidWindowFn</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">expected_duration_micro</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindowFn"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowFn" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.window.html#apache_beam.transforms.window.WindowFn" title="apache_beam.transforms.window.WindowFn"><code class="xref py py-class docutils literal notranslate"><span class="pre">WindowFn</span></code></a></p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowFn.assign"> |
| <span class="sig-name descname"><span class="pre">assign</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">assign_context</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindowFn.assign"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowFn.assign" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowFn.merge"> |
| <span class="sig-name descname"><span class="pre">merge</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">merge_context</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindowFn.merge"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowFn.merge" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowFn.get_window_coder"> |
| <span class="sig-name descname"><span class="pre">get_window_coder</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindowFn.get_window_coder"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowFn.get_window_coder" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowFn.get_transformed_output_time"> |
| <span class="sig-name descname"><span class="pre">get_transformed_output_time</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">window</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">input_timestamp</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#AuctionOrBidWindowFn.get_transformed_output_time"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.AuctionOrBidWindowFn.get_transformed_output_time" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.JoinAuctionBidFn"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.testing.benchmarks.nexmark.queries.winning_bids.</span></span><span class="sig-name descname"><span class="pre">JoinAuctionBidFn</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">unused_args</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">unused_kwargs</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#JoinAuctionBidFn"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.JoinAuctionBidFn" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.core.html#apache_beam.transforms.core.DoFn" title="apache_beam.transforms.core.DoFn"><code class="xref py py-class docutils literal notranslate"><span class="pre">DoFn</span></code></a></p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.JoinAuctionBidFn.higher_bid"> |
| <em class="property"><span class="pre">static</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">higher_bid</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">bid</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">other</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#JoinAuctionBidFn.higher_bid"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.JoinAuctionBidFn.higher_bid" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.JoinAuctionBidFn.process"> |
| <span class="sig-name descname"><span class="pre">process</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">element</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#JoinAuctionBidFn.process"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.JoinAuctionBidFn.process" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.WinningBids"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.testing.benchmarks.nexmark.queries.winning_bids.</span></span><span class="sig-name descname"><span class="pre">WinningBids</span></span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#WinningBids"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.WinningBids" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.ptransform.html#apache_beam.transforms.ptransform.PTransform" title="apache_beam.transforms.ptransform.PTransform"><code class="xref py py-class docutils literal notranslate"><span class="pre">PTransform</span></code></a></p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.testing.benchmarks.nexmark.queries.winning_bids.WinningBids.expand"> |
| <span class="sig-name descname"><span class="pre">expand</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">pcoll</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/testing/benchmarks/nexmark/queries/winning_bids.html#WinningBids.expand"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.testing.benchmarks.nexmark.queries.winning_bids.WinningBids.expand" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
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