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9a4198eb28
Most of the corpus — FindSet/SetLoadFields/CalcFields patterns, permission sets, SingleInstance codeunits, DataClassification, IsolatedStorage, transaction scope, SecretText — describes BC platform behaviour that is identical across supported versions. The seed [26..28] range on every file implied a version-specificity the content does not actually have, and there was no way to express "applies to every version" in the schema the way [w1] and [all] already do for countries and application-area. Extend the v1 schema with a universal sentinel for bc-version, parallel to the sentinels already defined for the other dimensions: bc-version: [all] # applies to every BC version [all] is mutually exclusive with explicit versions. Range shorthand ([26..28]) and explicit lists ([26, 27, 28]) continue to work for files genuinely tied to a version-gated API or deprecation. Update read.md (field definition, matching semantics, partial-context rule), write.md (default to [all], use ranges only with a concrete reason), README.md (frontmatter example), and the CI validator. All forty existing knowledge files and the three action skills convert to [all]; none of the current content is version-gated. Validator passes.
25 lines
1.1 KiB
Markdown
25 lines
1.1 KiB
Markdown
---
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bc-version: [all]
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domain: performance
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keywords: [sift, sumindexfields, flowfield, key, aa0232]
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technologies: [al]
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countries: [w1]
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application-area: [all]
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---
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# Add SIFT keys for FlowField aggregations
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## Description
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CodeCop rule AA0232 checks that FlowFields backed by CalcSums or aggregation CalcFormula are supported by a key whose SumIndexFields include the summed field and whose key prefix matches the formula's filter fields. Without a SIFT key the platform falls back to a full aggregation on every read — typically invisible in development and catastrophic in production.
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## Best Practice
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For each Sum-style FlowField, ensure the source table has a key whose leading fields match the FlowField's CalcFormula WHERE clause and whose SumIndexFields list includes the summed field. Table extensions adding new FlowFields are responsible for adding the supporting key.
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See sample: `add-sift-keys-for-flowfields.good.al`.
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## Anti Pattern
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Declaring a FlowField on a hot table without checking whether a supporting SIFT key exists ships a latent scan into every list page and report that touches the field.
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