{
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  "bskyPostRef": {
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  "path": "/blog/tech/2026-05-10-10-14_mysql_hypergraph_optimizer.html",
  "publishedAt": "2026-05-10T08:51:36.853Z",
  "site": "http://blog.sesse.net",
  "tags": [
    "their blog post"
  ],
  "textContent": "MySQL released (well, flipped the default compilation flag for) the hypergraph join optimizer in the community builds; this was the main project I started and worked on while I was there, so it's nice to see even though it's been default in e.g. their cloud column store for a long time. You can read their blog post (though beware, likely-LLM text ahead).\n\n(The cost model improvements and TPC-DS benchmarking are from after my time.)",
  "title": "Steinar H. Gunderson: MySQL hypergraph optimizer",
  "updatedAt": "2026-05-10T08:30:22.000Z"
}