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JSON Safari in BigQuery Spot, Tame & Transform Your Wild JSON Data

Dean Jain

Dean Jain

Senior Staff Software Engineer · Enterprise AI, Data & Cloud Architect

· 1 min read

BigQueryJSONData EngineeringGCP

Practical patterns for working with semi-structured JSON at petabyte scale in BigQuery.

JSON in BigQuery is powerful and easy to misuse expensively.

In this deep-dive:

  • Native JSON type vs. STRING + JSON functions when each pays off
  • Schema inference patterns and the gotchas
  • Querying nested arrays UNNEST tactics that stay cheap
  • Indexing & search the new SEARCH and indexing features
  • Cost optimization partitioning, clustering, and avoiding the silent scan trap

Read the full safari on Medium.

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