Add BI SQL examples capturing tool-generated metric queries - #344
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Add BI SQL examples capturing tool-generated metric queries#344christianeu-db wants to merge 2 commits into
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Add bi-sql-examples/ with real SQL that BI tools generate when they query metrics defined outside the tool. Include a tableau/ subfolder with a setup.sql model sketch, a README, and four feature-area examples: top-N filters, LOD two-stage aggregation, sets, and multi-table joins and relationships. These query shapes help verify that Ossie can cover the complex cases BI tools produce.
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August 28, 2026 12:37
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Aug 28, 2026
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Please add the ASF header in all files.
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Thank you for the feedback - the headers have been added to this and all other files
Add the Apache Software Foundation license header to all files introduced in this PR: the HTML-comment style for Markdown files and the SQL line-comment style for .sql files. Co-authored-by: Isaac <no-reply@databricks.com>
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One action item from the most recent (2026-08-26) language working group was to collect and commit examples of BI-generated SQL. BI tools have built rich functionality (for example, multi-table modeling, LOD calculations, subtotals), which can involve complex SQL. The SQL generated for similar features can be different across tools, and even within a single tool. This is especially true when you consider the optimizations applied by tool-specific query compilation pipelines.
This PR adds a first set of SQL examples as generated by Tableau. The features include top-N filters, sets, LOD (level of detail) calculations and multi-table analysis. These are adopted from this document, which fleshed out a SQL interface the working group is now calling the metric layer interface.
Separate PRs will describe the layered interface approach and the semantics of each layer, as discussed at the working group meeting.