Query Optimization at the Crossroads

Summary: Survey of query optimization at a crossroads of transformations, cost-based search, and extensible optimizers. Highlights enduring challenges: selectivity/cost estimation, search-space understanding, nested-query optimization, and middleware/hints reshaping the optimizer landscape. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: 2977
Venue: SIGMOD
Year: 1997
Pagerank: -
Overall Rank: 14,011 | 2.63%
DOI: -

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