Document schema evolution capabilities for Delta Lake #25980
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ebyhr
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Delta Lake format (not connector) supports schema evolution on nested fields, right? We could rephrase to "The connector supports ..." to clarify this is our connector's limitation.
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I tried out schema evolution operations for nested fields and got exceptions:
trino> alter table delta.tiny.t3 drop column parent.child2;
Query 20250611_074645_00015_2q48r failed: This connector does not support dropping fields
trino> alter table delta.tiny.t2 rename column parent.child to newchild;
Query 20250611_073950_00010_2q48r failed: This connector does not support renaming fields
chenjian2664
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We could start with: The Delta Lake connector supports ...
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Description
Additional context and related issues
Similar documentation section exists already for the Iceberg connector on https://trino.io/docs/current/connector/iceberg.html#schema-and-table-management
Release notes
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