{
  "@context": "https://schema.org",
  "@type": "TechArticle",
  "@id": "https://anchorfact.org/kb/kb-2026-00252",
  "headline": "Database Indexing",
  "description": "Database indexes are data structures that speed up data retrieval — like a book's index. Common types: B-tree (default, range queries, sorting), Hash (equality only), GIN (full-text, arrays, JSONB in PostgreSQL), GiST (geometric, full-text), BRIN (block range, large append-only tables). Without index: sequential scan (read every row).",
  "dateCreated": "2026-05-22T14:59:47.553Z",
  "dateModified": "2026-05-22T14:59:47.553Z",
  "author": {
    "@type": "Organization",
    "name": "AnchorFact"
  },
  "publisher": {
    "@type": "Organization",
    "name": "AnchorFact",
    "url": "https://anchorfact.org"
  },
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "anchorfact:confidence": "high",
  "anchorfact:generationMethod": "human_only",
  "citation": []
}