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Data Engineering
Join discussions on data engineering best practices, architectures, and optimization strategies within the Databricks Community. Exchange insights and solutions with fellow data engineers.
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brickster_2018
by • Esteemed Contributor
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Resolved! Should I use DEEP clone or SHALLOW Clone? which is better?

Data Engineering
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brickster_2018
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It's the use case that decides the use of Shallow clone or DEEP Clone Data is physically copied to the clone table in the case of a Deep clone. A deep clone is very useful to copy the data and have a backup of the data in another region/env. The typ...

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User16826992666
by • Valued Contributor
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Resolved! What's the difference between a Delta deep clone vs shallow clone?

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sajith_appukutt
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Shallow clone: only duplicates the metadata of the table being cloned; the data files of the table itself are not copied. These clones are cheaper to create but are  not self-contained and depend on the source from which they were cloned as the sourc...

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User16826992666
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Resolved! If I create a clone of a Delta table, does it stay in sync with the original table?

Basically wondering what happens to the clone when updates are made to the original Delta table. Will the changes apply to the cloned table as well?

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sajith_appukutt
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The clone is not a replica and so updates made to the original delta table wouldn't be applies to the clone. However, shallow clones reference data files in the source directory. If you run vacuum on the source table, clients will no longer be able t...

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