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Co-authored-by: Superset Dev <dev@superset.apache.org> Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com> Co-authored-by: Amin Ghadersohi <amin.ghadersohi@gmail.com>
70 lines
3.0 KiB
TypeScript
70 lines
3.0 KiB
TypeScript
/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* Pivot-table acceptance cases for non-additive metric totals (see SIP.md).
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*
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* The pivot computes its grand total / subtotals client-side using the
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* `aggregators` from react-pivottable, applied to the already-aggregated cell
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* values. For a non-additive metric (a ratio like SUM(actual)/SUM(target))
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* that is wrong: summing the per-group ratios is meaningless. This pins the
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* mechanism behind #25747 / #32260 against the real production aggregator.
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*
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* The fix is not at this layer (no client-side aggregator over divided cells
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* can recover the right answer) - it requires the DB-computed per-level rollup
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* queries from phase 2. The `test.failing` case documents that target.
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*/
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import { aggregators } from '../../src/react-pivottable/utilities';
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// Per-group completion ratios (actual/target), as the single pivot query
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// returns them today.
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const ratioCells = [{ completion: 10 / 40 }, { completion: 30 / 60 }]; // 0.25, 0.5
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// Correct grand total: SUM(actual)/SUM(target) = 40/100 = 0.4
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const CORRECT_COMPLETION = 0.4;
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function sumOf(field: string, rows: Record<string, number>[]): number {
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// Build the real "Sum" aggregator the pivot uses for totals.
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const aggregator = (aggregators as Record<string, any>).Sum([field])(
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null,
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[],
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[],
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);
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rows.forEach(r => aggregator.push(r));
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return aggregator.value();
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}
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test('#25747/#32260: pivot Sum aggregator totals the per-group ratios (current, wrong)', () => {
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// 0.25 + 0.5 = 0.75, which is not a meaningful completion rate.
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expect(sumOf('completion', ratioCells)).toBeCloseTo(0.75);
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expect(sumOf('completion', ratioCells)).not.toBeCloseTo(CORRECT_COMPLETION);
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});
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test.failing(
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'#25747/#32260: the correct ratio is unreachable by client-side summation (justifies the query-layer fix)',
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() => {
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// This stays failing by design: no aggregator over the already-divided
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// cells can recover SUM(actual)/SUM(target). It documents *why* phase 2
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// moves totals to DB-computed per-level rollup queries rather than fixing
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// an aggregator. The phase-2 acceptance test lives at the data-flow layer
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// (transformProps consuming the rollup results), not here.
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expect(sumOf('completion', ratioCells)).toBeCloseTo(CORRECT_COMPLETION);
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},
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);
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