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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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Forum Posts

najmead
by Contributor
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Error Creating Primary Key Constraint

I am trying to add a primary key constraint to an existing table, and I get the following error;Cannot create or update table because the child column(s) `my_primary_key` of primary key `pk` cannot be set to nullable. Either drop the constraint, or c...

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Debayan
Esteemed Contributor III
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Hi, Could you please confirm if you are using the latest databricks-sql-connector ? (https://pypi.org/project/databricks-sql-connector/)

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Abeeya
by New Contributor II
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Resolved! How to Overwrite Using pyspark's JDBC without loosing constraints on table columns

Hello,My table has primary key constraint on a perticular column, Im loosing primary key constaint on that column each time I overwrite the table , What Can I do to preserve it? Any Heads up would be appreciatedTried Belowdf.write.option("truncate", ...

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Kaniz
Community Manager
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Hi @Abeeya .​ , How are you? Did @Hubert Dudek​ 's answer help you in any way? Please let us know.

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