DATAFRAME WORKLOADS USING READ-ONLY DATA SNAPSHOTS
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United States of America
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Issued Date -
Mar 20, 2025
app pub date -
Dec 21, 2023
filing date -
Dec 21, 2023
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Abstract
A method provides deterministic row ordering for query result sets in a database system. A framework receives a query referencing a database table and generating a row index column in response. The framework generates the row index column that involves determining an order associated with source files underlying the referenced table and assigns each table row a unique index value based on the file order and row position within the files. The framework executes the received query to produce a result set ordered by the generated row index column. The framework determines row order based on analyzing underlying data file metadata and facilitates returning the result set with consistent, reliable ordering, enabling stable positional-based access semantics when querying distributed database tables.
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