Number of dimensions (equal to shape.len)
3.1. Stability of my config
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23:59, 27 февраля 2026Экономика
That said, the JSON type is not a substitute for schema design. For columns with a known, stable structure, explicit column definitions will always provide the best performance. The right approach is to use explicit columns for the parts of your data you understand, and the JSON type for the parts that are genuinely dynamic.