Update trino__get_columns_in_relation to use information_schema.columns #444
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mdesmet
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Nov 13, 2024
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Overview
We have noticed that queries against information_schema.columns are consistently faster than describe queries. Especially when using the glue catalog with an iceberg connector. For iceberg in particular, there has been particular optimizations made to speed up queries to information_schema.columns (this PR - trinodb/trino#18315).
We've also seen this is faster for JDBC catalogs.
This PR is to query information_schema.columns for getting column information for a relation.
Resolves #443
Checklist
README.mdupdated and added information about my changechangie newto create a changelog entry