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DuckDB 2.0 ドキュメント 全文検索
Results of 1 - 1 of about 1 for PhysicalPivot (0.000 sec.)
- Pivot Internals 9414
- PIVOT Pivoting is implemented as a combination of SQL query re-writing and a dedicated PhysicalPivot operator for higher performance. Each PIVOT is implemented as set of aggregations into lists and then the dedicated PhysicalPivot operator
...1005, 1065, 1158] US Seattle [2000, 2010, 2020] [564, 608, 738] US New York City [2000, 2010, 2020] [8015, 8175, 8772] The PhysicalPivot operator converts those lists into column names and values to return this result: country name 2000 2010 2020 NL Amsterdam... - https://man.mtool.work/duckdb/2.0/internals/pivot.html
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