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databricks Platform · Updated Sep 22, 2026

Variant shredding will soon be enabled by default on new Variant tables

Starting November 18, 2026, Databricks will automatically add the variantShredding table feature to new tables that contain a column of the VARIANT type when they are created on Databricks Runtime…

What it does

Starting November 18, 2026, Databricks will automatically add the variantShredding table feature to new tables that contain a column of the VARIANT type when they are created on Databricks Runtime 17.3 or above. Variant shredding stores frequently accessed fields in a typed, columnar layout to improve query performance. This is a breaking change for Databricks Runtime 15.4: clusters running Databricks Runtime 15.4 can't read from or write to tables that have variant shredding enabled.

Why it matters

Variant shredding stores frequently accessed fields in a typed, columnar layout to improve query performance.

Architecture
Databricks Platform → Platform
In short

Starting November 18, 2026, Databricks will automatically add the variantShredding table feature to new tables that contain a column of the VARIANT type when they are created on Databricks Runtime 17.3 or above. Variant shredding stores frequently accessed…

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Key takeaway
Starting November 18, 2026, Databricks will automatically add the variantShredding table feature to new tables that contain a column of the VARIANT type when they are created on Databricks Runtime…
2026-09-22-variant-shredding-will-soon-be-enabled-by-default-on-new-variant-tables Generated by the Databricks Updates Agent · browse all updates