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<title>src/Database/Relational/Query/Monad/Trans/Aggregating.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE GeneralizedNewtypeDeriving #-}</span>
<a name="line-2"></a><span class='hs-comment'>{-# LANGUAGE FlexibleInstances #-}</span>
<a name="line-3"></a><span class='hs-comment'>{-# LANGUAGE MultiParamTypeClasses #-}</span>
<a name="line-4"></a>
<a name="line-5"></a><span class='hs-comment'>-- |</span>
<a name="line-6"></a><span class='hs-comment'>-- Module : Database.Relational.Query.Monad.Trans.Aggregating</span>
<a name="line-7"></a><span class='hs-comment'>-- Copyright : 2013-2017 Kei Hibino</span>
<a name="line-8"></a><span class='hs-comment'>-- License : BSD3</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- Maintainer : ex8k.hibino@gmail.com</span>
<a name="line-11"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-12"></a><span class='hs-comment'>-- Portability : unknown</span>
<a name="line-13"></a><span class='hs-comment'>--</span>
<a name="line-14"></a><span class='hs-comment'>-- This module defines monad transformer which lift</span>
<a name="line-15"></a><span class='hs-comment'>-- from 'MonadQuery' into Aggregated query.</span>
<a name="line-16"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>Relational</span><span class='hs-varop'>.</span><span class='hs-conid'>Query</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Trans</span><span class='hs-varop'>.</span><span class='hs-conid'>Aggregating</span>
<a name="line-17"></a> <span class='hs-layout'>(</span> <span class='hs-comment'>-- * Transformer into aggregated query</span>
<a name="line-18"></a> <span class='hs-conid'>Aggregatings</span><span class='hs-layout'>,</span> <span class='hs-varid'>aggregatings</span><span class='hs-layout'>,</span>
<a name="line-19"></a>
<a name="line-20"></a> <span class='hs-conid'>AggregatingSetT</span><span class='hs-layout'>,</span> <span class='hs-conid'>AggregatingSetListT</span><span class='hs-layout'>,</span> <span class='hs-conid'>AggregatingPowerSetT</span><span class='hs-layout'>,</span> <span class='hs-conid'>PartitioningSetT</span><span class='hs-layout'>,</span>
<a name="line-21"></a>
<a name="line-22"></a> <span class='hs-comment'>-- * Result</span>
<a name="line-23"></a> <span class='hs-varid'>extractAggregateTerms</span><span class='hs-layout'>,</span>
<a name="line-24"></a>
<a name="line-25"></a> <span class='hs-comment'>-- * Grouping sets support</span>
<a name="line-26"></a> <span class='hs-conid'>AggregatingSet</span><span class='hs-layout'>,</span> <span class='hs-conid'>AggregatingPowerSet</span><span class='hs-layout'>,</span> <span class='hs-conid'>AggregatingSetList</span><span class='hs-layout'>,</span> <span class='hs-conid'>PartitioningSet</span><span class='hs-layout'>,</span>
<a name="line-27"></a> <span class='hs-varid'>key</span><span class='hs-layout'>,</span> <span class='hs-varid'>key'</span><span class='hs-layout'>,</span> <span class='hs-varid'>set</span><span class='hs-layout'>,</span>
<a name="line-28"></a> <span class='hs-varid'>bkey</span><span class='hs-layout'>,</span> <span class='hs-varid'>rollup</span><span class='hs-layout'>,</span> <span class='hs-varid'>cube</span><span class='hs-layout'>,</span> <span class='hs-varid'>groupingSets</span><span class='hs-layout'>,</span>
<a name="line-29"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-30"></a>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Trans</span><span class='hs-varop'>.</span><span class='hs-conid'>Class</span> <span class='hs-layout'>(</span><span class='hs-conid'>MonadTrans</span> <span class='hs-layout'>(</span><span class='hs-varid'>lift</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-32"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Trans</span><span class='hs-varop'>.</span><span class='hs-conid'>Writer</span> <span class='hs-layout'>(</span><span class='hs-conid'>WriterT</span><span class='hs-layout'>,</span> <span class='hs-varid'>runWriterT</span><span class='hs-layout'>,</span> <span class='hs-varid'>tell</span><span class='hs-layout'>)</span>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Applicative</span> <span class='hs-layout'>(</span><span class='hs-conid'>Applicative</span><span class='hs-layout'>,</span> <span class='hs-varid'>pure</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'><$></span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Arrow</span> <span class='hs-layout'>(</span><span class='hs-varid'>second</span><span class='hs-layout'>)</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>DList</span> <span class='hs-layout'>(</span><span class='hs-conid'>DList</span><span class='hs-layout'>,</span> <span class='hs-varid'>toList</span><span class='hs-layout'>)</span>
<a name="line-36"></a>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Functor</span><span class='hs-varop'>.</span><span class='hs-conid'>Identity</span> <span class='hs-layout'>(</span><span class='hs-conid'>Identity</span> <span class='hs-layout'>(</span><span class='hs-varid'>runIdentity</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-38"></a>
<a name="line-39"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>Relational</span><span class='hs-varop'>.</span><span class='hs-conid'>Query</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span><span class='hs-varop'>.</span><span class='hs-conid'>GroupingSQL</span>
<a name="line-40"></a> <span class='hs-layout'>(</span><span class='hs-conid'>AggregateColumnRef</span><span class='hs-layout'>,</span> <span class='hs-conid'>AggregateElem</span><span class='hs-layout'>,</span> <span class='hs-varid'>aggregateColumnRef</span><span class='hs-layout'>,</span> <span class='hs-conid'>AggregateSet</span><span class='hs-layout'>,</span> <span class='hs-varid'>aggregateGroupingSet</span><span class='hs-layout'>,</span>
<a name="line-41"></a> <span class='hs-conid'>AggregateBitKey</span><span class='hs-layout'>,</span> <span class='hs-varid'>aggregatePowerKey</span><span class='hs-layout'>,</span> <span class='hs-varid'>aggregateRollup</span><span class='hs-layout'>,</span> <span class='hs-varid'>aggregateCube</span><span class='hs-layout'>,</span> <span class='hs-varid'>aggregateSets</span><span class='hs-layout'>,</span>
<a name="line-42"></a> <span class='hs-conid'>AggregateKey</span><span class='hs-layout'>,</span> <span class='hs-varid'>aggregateKeyProjection</span><span class='hs-layout'>,</span> <span class='hs-varid'>aggregateKeyElement</span><span class='hs-layout'>,</span> <span class='hs-varid'>unsafeAggregateKey</span><span class='hs-layout'>)</span>
<a name="line-43"></a>
<a name="line-44"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>Relational</span><span class='hs-varop'>.</span><span class='hs-conid'>Query</span><span class='hs-varop'>.</span><span class='hs-conid'>Context</span> <span class='hs-layout'>(</span><span class='hs-conid'>Flat</span><span class='hs-layout'>,</span> <span class='hs-conid'>Aggregated</span><span class='hs-layout'>,</span> <span class='hs-conid'>Set</span><span class='hs-layout'>,</span> <span class='hs-conid'>Power</span><span class='hs-layout'>,</span> <span class='hs-conid'>SetList</span><span class='hs-layout'>)</span>
<a name="line-45"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>Relational</span><span class='hs-varop'>.</span><span class='hs-conid'>Query</span><span class='hs-varop'>.</span><span class='hs-conid'>Projection</span> <span class='hs-layout'>(</span><span class='hs-conid'>Projection</span><span class='hs-layout'>)</span>
<a name="line-46"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>Relational</span><span class='hs-varop'>.</span><span class='hs-conid'>Query</span><span class='hs-varop'>.</span><span class='hs-conid'>Projection</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Projection</span>
<a name="line-47"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>Relational</span><span class='hs-varop'>.</span><span class='hs-conid'>Query</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Class</span>
<a name="line-48"></a> <span class='hs-layout'>(</span><span class='hs-conid'>MonadQualify</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadRestrict</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadQuery</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadAggregate</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadPartition</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-49"></a>
<a name="line-50"></a>
<a name="line-51"></a><a name="Aggregatings"></a><span class='hs-comment'>-- | Type to accumulate aggregating context.</span>
<a name="line-52"></a><a name="Aggregatings"></a><span class='hs-comment'>-- Type 'ac' is aggregating-context type like aggregating key set building,</span>
<a name="line-53"></a><a name="Aggregatings"></a><span class='hs-comment'>-- aggregating key sets set building and partition key set building.</span>
<a name="line-54"></a><a name="Aggregatings"></a><span class='hs-comment'>-- Type 'at' is aggregating term type.</span>
<a name="line-55"></a><a name="Aggregatings"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>Aggregatings</span> <span class='hs-varid'>ac</span> <span class='hs-varid'>at</span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span>
<a name="line-56"></a> <span class='hs-conid'>Aggregatings</span> <span class='hs-layout'>(</span><span class='hs-conid'>WriterT</span> <span class='hs-layout'>(</span><span class='hs-conid'>DList</span> <span class='hs-varid'>at</span><span class='hs-layout'>)</span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-57"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>MonadTrans</span><span class='hs-layout'>,</span> <span class='hs-conid'>Monad</span><span class='hs-layout'>,</span> <span class='hs-conid'>Functor</span><span class='hs-layout'>,</span> <span class='hs-conid'>Applicative</span><span class='hs-layout'>)</span>
<a name="line-58"></a>
<a name="line-59"></a><a name="aggregatings"></a><span class='hs-comment'>-- | Lift to 'Aggregatings'.</span>
<a name="line-60"></a><span class='hs-definition'>aggregatings</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Aggregatings</span> <span class='hs-varid'>ac</span> <span class='hs-varid'>at</span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span>
<a name="line-61"></a><span class='hs-definition'>aggregatings</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>lift</span>
<a name="line-62"></a>
<a name="line-63"></a><a name="AggregatingSetT"></a><span class='hs-comment'>-- | Context type building one grouping set.</span>
<a name="line-64"></a><a name="AggregatingSetT"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>AggregatingSetT</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Aggregatings</span> <span class='hs-conid'>Set</span> <span class='hs-conid'>AggregateElem</span>
<a name="line-65"></a>
<a name="line-66"></a><a name="AggregatingSetListT"></a><span class='hs-comment'>-- | Context type building grouping sets list.</span>
<a name="line-67"></a><a name="AggregatingSetListT"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>AggregatingSetListT</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Aggregatings</span> <span class='hs-conid'>SetList</span> <span class='hs-conid'>AggregateSet</span>
<a name="line-68"></a>
<a name="line-69"></a><a name="AggregatingPowerSetT"></a><span class='hs-comment'>-- | Context type building power group set.</span>
<a name="line-70"></a><a name="AggregatingPowerSetT"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>AggregatingPowerSetT</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Aggregatings</span> <span class='hs-conid'>Power</span> <span class='hs-conid'>AggregateBitKey</span>
<a name="line-71"></a>
<a name="line-72"></a><a name="PartitioningSetT"></a><span class='hs-comment'>-- | Context type building partition keys set.</span>
<a name="line-73"></a><a name="PartitioningSetT"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>PartitioningSetT</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Aggregatings</span> <span class='hs-varid'>c</span> <span class='hs-conid'>AggregateColumnRef</span>
<a name="line-74"></a>
<a name="line-75"></a><a name="instance%20MonadRestrict%20c%20(AggregatingSetT%20m)"></a><span class='hs-comment'>-- | Aggregated 'MonadRestrict'.</span>
<a name="line-76"></a><a name="instance%20MonadRestrict%20c%20(AggregatingSetT%20m)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>MonadRestrict</span> <span class='hs-varid'>c</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>MonadRestrict</span> <span class='hs-varid'>c</span> <span class='hs-layout'>(</span><span class='hs-conid'>AggregatingSetT</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-77"></a> <span class='hs-varid'>restrict</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>aggregatings</span> <span class='hs-varop'>.</span> <span class='hs-varid'>restrict</span>
<a name="line-78"></a>
<a name="line-79"></a><a name="instance%20MonadQualify%20q%20(AggregatingSetT%20m)"></a><span class='hs-comment'>-- | Aggregated 'MonadQualify'.</span>
<a name="line-80"></a><a name="instance%20MonadQualify%20q%20(AggregatingSetT%20m)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>MonadQualify</span> <span class='hs-varid'>q</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>MonadQualify</span> <span class='hs-varid'>q</span> <span class='hs-layout'>(</span><span class='hs-conid'>AggregatingSetT</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-81"></a> <span class='hs-varid'>liftQualify</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>aggregatings</span> <span class='hs-varop'>.</span> <span class='hs-varid'>liftQualify</span>
<a name="line-82"></a>
<a name="line-83"></a><a name="instance%20MonadQuery%20(AggregatingSetT%20m)"></a><span class='hs-comment'>-- | Aggregated 'MonadQuery'.</span>
<a name="line-84"></a><a name="instance%20MonadQuery%20(AggregatingSetT%20m)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>MonadQuery</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>MonadQuery</span> <span class='hs-layout'>(</span><span class='hs-conid'>AggregatingSetT</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-85"></a> <span class='hs-varid'>setDuplication</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>aggregatings</span> <span class='hs-varop'>.</span> <span class='hs-varid'>setDuplication</span>
<a name="line-86"></a> <span class='hs-varid'>restrictJoin</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>aggregatings</span> <span class='hs-varop'>.</span> <span class='hs-varid'>restrictJoin</span>
<a name="line-87"></a> <span class='hs-varid'>query'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>aggregatings</span> <span class='hs-varop'>.</span> <span class='hs-varid'>query'</span>
<a name="line-88"></a> <span class='hs-varid'>queryMaybe'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>aggregatings</span> <span class='hs-varop'>.</span> <span class='hs-varid'>queryMaybe'</span>
<a name="line-89"></a>
<a name="line-90"></a><a name="unsafeAggregateWithTerm"></a><span class='hs-definition'>unsafeAggregateWithTerm</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>at</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Aggregatings</span> <span class='hs-varid'>ac</span> <span class='hs-varid'>at</span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-91"></a><span class='hs-definition'>unsafeAggregateWithTerm</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Aggregatings</span> <span class='hs-varop'>.</span> <span class='hs-varid'>tell</span> <span class='hs-varop'>.</span> <span class='hs-varid'>pure</span>
<a name="line-92"></a>
<a name="line-93"></a><a name="aggregateKey"></a><span class='hs-definition'>aggregateKey</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>AggregateKey</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Aggregatings</span> <span class='hs-varid'>ac</span> <span class='hs-conid'>AggregateElem</span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span>
<a name="line-94"></a><span class='hs-definition'>aggregateKey</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-95"></a> <span class='hs-varid'>unsafeAggregateWithTerm</span> <span class='hs-varop'>$</span> <span class='hs-varid'>aggregateKeyElement</span> <span class='hs-varid'>k</span>
<a name="line-96"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>aggregateKeyProjection</span> <span class='hs-varid'>k</span>
<a name="line-97"></a>
<a name="line-98"></a><a name="instance%20MonadAggregate%20(AggregatingSetT%20m)"></a><span class='hs-comment'>-- | Aggregated query instance.</span>
<a name="line-99"></a><a name="instance%20MonadAggregate%20(AggregatingSetT%20m)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>MonadQuery</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>MonadAggregate</span> <span class='hs-layout'>(</span><span class='hs-conid'>AggregatingSetT</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-100"></a> <span class='hs-varid'>groupBy</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-101"></a> <span class='hs-varid'>mapM_</span> <span class='hs-varid'>unsafeAggregateWithTerm</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>aggregateColumnRef</span> <span class='hs-varid'>col</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>col</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>Projection</span><span class='hs-varop'>.</span><span class='hs-varid'>columns</span> <span class='hs-varid'>p</span><span class='hs-keyglyph'>]</span>
<a name="line-102"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Projection</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeToAggregated</span> <span class='hs-varid'>p</span>
<a name="line-103"></a> <span class='hs-varid'>groupBy'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>aggregateKey</span>
<a name="line-104"></a>
<a name="line-105"></a><a name="instance%20MonadPartition%20c%20(PartitioningSetT%20c%20m)"></a><span class='hs-comment'>-- | Partition clause instance</span>
<a name="line-106"></a><a name="instance%20MonadPartition%20c%20(PartitioningSetT%20c%20m)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>MonadPartition</span> <span class='hs-varid'>c</span> <span class='hs-layout'>(</span><span class='hs-conid'>PartitioningSetT</span> <span class='hs-varid'>c</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-107"></a> <span class='hs-varid'>partitionBy</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapM_</span> <span class='hs-varid'>unsafeAggregateWithTerm</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Projection</span><span class='hs-varop'>.</span><span class='hs-varid'>columns</span>
<a name="line-108"></a>
<a name="line-109"></a><a name="extractAggregateTerms"></a><span class='hs-comment'>-- | Run 'Aggregatings' to get terms list.</span>
<a name="line-110"></a><span class='hs-definition'>extractAggregateTerms</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>Functor</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Aggregatings</span> <span class='hs-varid'>ac</span> <span class='hs-varid'>at</span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>at</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-111"></a><span class='hs-definition'>extractAggregateTerms</span> <span class='hs-layout'>(</span><span class='hs-conid'>Aggregatings</span> <span class='hs-varid'>ac</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>second</span> <span class='hs-varid'>toList</span> <span class='hs-varop'><$></span> <span class='hs-varid'>runWriterT</span> <span class='hs-varid'>ac</span>
<a name="line-112"></a>
<a name="line-113"></a><a name="extractTermList"></a><span class='hs-definition'>extractTermList</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Aggregatings</span> <span class='hs-varid'>ac</span> <span class='hs-varid'>at</span> <span class='hs-conid'>Identity</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>at</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-114"></a><span class='hs-definition'>extractTermList</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>runIdentity</span> <span class='hs-varop'>.</span> <span class='hs-varid'>extractAggregateTerms</span>
<a name="line-115"></a>
<a name="line-116"></a><a name="AggregatingSet"></a><span class='hs-comment'>-- | Context monad type to build single grouping set.</span>
<a name="line-117"></a><a name="AggregatingSet"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>AggregatingSet</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AggregatingSetT</span> <span class='hs-conid'>Identity</span>
<a name="line-118"></a>
<a name="line-119"></a><a name="AggregatingPowerSet"></a><span class='hs-comment'>-- | Context monad type to build grouping power set.</span>
<a name="line-120"></a><a name="AggregatingPowerSet"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>AggregatingPowerSet</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AggregatingPowerSetT</span> <span class='hs-conid'>Identity</span>
<a name="line-121"></a>
<a name="line-122"></a><a name="AggregatingSetList"></a><span class='hs-comment'>-- | Context monad type to build grouping set list.</span>
<a name="line-123"></a><a name="AggregatingSetList"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>AggregatingSetList</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AggregatingSetListT</span> <span class='hs-conid'>Identity</span>
<a name="line-124"></a>
<a name="line-125"></a><a name="PartitioningSet"></a><span class='hs-comment'>-- | Context monad type to build partition keys set.</span>
<a name="line-126"></a><a name="PartitioningSet"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>PartitioningSet</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PartitioningSetT</span> <span class='hs-varid'>c</span> <span class='hs-conid'>Identity</span>
<a name="line-127"></a>
<a name="line-128"></a><a name="key"></a><span class='hs-comment'>-- | Specify key of single grouping set from Projection.</span>
<a name="line-129"></a><span class='hs-definition'>key</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Projection</span> <span class='hs-conid'>Flat</span> <span class='hs-varid'>r</span>
<a name="line-130"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AggregatingSet</span> <span class='hs-layout'>(</span><span class='hs-conid'>Projection</span> <span class='hs-conid'>Aggregated</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-131"></a><span class='hs-definition'>key</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-132"></a> <span class='hs-varid'>mapM_</span> <span class='hs-varid'>unsafeAggregateWithTerm</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>aggregateColumnRef</span> <span class='hs-varid'>col</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>col</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>Projection</span><span class='hs-varop'>.</span><span class='hs-varid'>columns</span> <span class='hs-varid'>p</span><span class='hs-keyglyph'>]</span>
<a name="line-133"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Projection</span><span class='hs-varop'>.</span><span class='hs-varid'>just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Projection</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeToAggregated</span> <span class='hs-varid'>p</span>
<a name="line-134"></a>
<a name="line-135"></a><a name="key'"></a><span class='hs-comment'>-- | Specify key of single grouping set.</span>
<a name="line-136"></a><span class='hs-definition'>key'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AggregateKey</span> <span class='hs-varid'>a</span>
<a name="line-137"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AggregatingSet</span> <span class='hs-varid'>a</span>
<a name="line-138"></a><span class='hs-definition'>key'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>aggregateKey</span>
<a name="line-139"></a>
<a name="line-140"></a><a name="set"></a><span class='hs-comment'>-- | Finalize and specify single grouping set.</span>
<a name="line-141"></a><span class='hs-definition'>set</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AggregatingSet</span> <span class='hs-varid'>a</span>
<a name="line-142"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AggregatingSetList</span> <span class='hs-varid'>a</span>
<a name="line-143"></a><span class='hs-definition'>set</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-144"></a> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>second</span> <span class='hs-varid'>aggregateGroupingSet</span> <span class='hs-varop'>.</span> <span class='hs-varid'>extractTermList</span> <span class='hs-varop'>$</span> <span class='hs-varid'>s</span>
<a name="line-145"></a> <span class='hs-varid'>unsafeAggregateWithTerm</span> <span class='hs-varid'>c</span>
<a name="line-146"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>p</span>
<a name="line-147"></a>
<a name="line-148"></a><a name="bkey"></a><span class='hs-comment'>-- | Specify key of rollup and cube power set.</span>
<a name="line-149"></a><span class='hs-definition'>bkey</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Projection</span> <span class='hs-conid'>Flat</span> <span class='hs-varid'>r</span>
<a name="line-150"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AggregatingPowerSet</span> <span class='hs-layout'>(</span><span class='hs-conid'>Projection</span> <span class='hs-conid'>Aggregated</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-151"></a><span class='hs-definition'>bkey</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-152"></a> <span class='hs-varid'>unsafeAggregateWithTerm</span> <span class='hs-varop'>.</span> <span class='hs-varid'>aggregatePowerKey</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Projection</span><span class='hs-varop'>.</span><span class='hs-varid'>columns</span> <span class='hs-varid'>p</span>
<a name="line-153"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Projection</span><span class='hs-varop'>.</span><span class='hs-varid'>just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Projection</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeToAggregated</span> <span class='hs-varid'>p</span>
<a name="line-154"></a>
<a name="line-155"></a><a name="finalizePower"></a><span class='hs-definition'>finalizePower</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>AggregateBitKey</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AggregateElem</span><span class='hs-layout'>)</span>
<a name="line-156"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AggregatingPowerSet</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AggregateKey</span> <span class='hs-varid'>a</span>
<a name="line-157"></a><span class='hs-definition'>finalizePower</span> <span class='hs-varid'>finalize</span> <span class='hs-varid'>pow</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafeAggregateKey</span> <span class='hs-varop'>.</span> <span class='hs-varid'>second</span> <span class='hs-varid'>finalize</span> <span class='hs-varop'>.</span> <span class='hs-varid'>extractTermList</span> <span class='hs-varop'>$</span> <span class='hs-varid'>pow</span>
<a name="line-158"></a>
<a name="line-159"></a><a name="rollup"></a><span class='hs-comment'>-- | Finalize grouping power set as rollup power set.</span>
<a name="line-160"></a><span class='hs-definition'>rollup</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AggregatingPowerSet</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AggregateKey</span> <span class='hs-varid'>a</span>
<a name="line-161"></a><span class='hs-definition'>rollup</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>finalizePower</span> <span class='hs-varid'>aggregateRollup</span>
<a name="line-162"></a>
<a name="line-163"></a><a name="cube"></a><span class='hs-comment'>-- | Finalize grouping power set as cube power set.</span>
<a name="line-164"></a><span class='hs-definition'>cube</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AggregatingPowerSet</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AggregateKey</span> <span class='hs-varid'>a</span>
<a name="line-165"></a><span class='hs-definition'>cube</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>finalizePower</span> <span class='hs-varid'>aggregateCube</span>
<a name="line-166"></a>
<a name="line-167"></a><a name="groupingSets"></a><span class='hs-comment'>-- | Finalize grouping set list.</span>
<a name="line-168"></a><span class='hs-definition'>groupingSets</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AggregatingSetList</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>AggregateKey</span> <span class='hs-varid'>a</span>
<a name="line-169"></a><span class='hs-definition'>groupingSets</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafeAggregateKey</span> <span class='hs-varop'>.</span> <span class='hs-varid'>second</span> <span class='hs-varid'>aggregateSets</span> <span class='hs-varop'>.</span> <span class='hs-varid'>extractTermList</span>
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