mirror of
https://github.com/microsoft/BCQuality.git
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62dabf9a11
The /samples/ top-level tree is replaced with sibling files in each
knowledge-layer folder. An article and its demonstrations now live
side-by-side:
microsoft/knowledge/<domain>/<slug>.md
microsoft/knowledge/<domain>/<slug>.good.al
microsoft/knowledge/<domain>/<slug>.bad.al
Rationale:
- Proximity. An article and its paired samples are one unit; the
filesystem now reflects that.
- Layer ownership. Samples inherit layer precedence for free -- a
/custom/ fork can override an article and its samples atomically,
which the shared /samples/ tree previously made awkward.
- Trivial migration path. Action-skill source globs
(*/knowledge/<domain>/**/*.md) are unchanged; sample discovery is a
sibling-filename lookup.
Changes:
- git mv of all 65 sample files from samples/<domain>/<slug>/{bad,good}.al
to microsoft/knowledge/<domain>/<slug>.{bad,good}.al (history preserved).
- Update See-sample references in all 37 articles that ship samples.
- skills/read.md: replace the no-code-blocks bullet with a pointer to a
new Sample files section that fully specifies the sibling convention,
the kinds (good/bad + forward-compatible), multi-technology rules,
demonstration-only status, and layer-precedence behaviour.
- skills/write.md: update the samples pointer to match.
- README.md: annotate the knowledge tree with the sample sibling shape.
- samples/README.md deleted; content lifted into skills/read.md.
- Both generators (C:\temp\gen_performance_knowledge.py,
C:\temp\gen_security_knowledge.py) updated to emit at the new paths
and to stop writing samples/README.md. Re-running them is idempotent
against the committed layout.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
27 lines
1.3 KiB
Markdown
27 lines
1.3 KiB
Markdown
---
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bc-version: [26..28]
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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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> **Seed article.** Converted from an existing performance-review prompt to bootstrap the BCQuality performance corpus. Domain stewards should expand, restructure, and refine as needed.
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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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