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DuckDB 1.3 ドキュメント 全文検索
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- GROUPING SETS – DuckDB 9414
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...ty, zip), (country), (city), (zip), () . This produces 2^n grouping sets. Identifying Grouping Sets with GROUPING_ID() The super-aggregate rows generated by GROUPING SETS , ROLLUP and CUBE can often be identified by NULL -values returned for the respe...ted by the grouping construct. The GROUPING_ID() or GROUPING() function is designed to identify which groups generated the super-aggregate rows in the result. GROUPING_ID() is an aggregate function that takes the column expressions that make up the gr...ouping(s). It returns a BIGINT value. The return value is 0 for the rows that are not super-aggregate rows. But for the super-aggregate rows, it returns an integer value that identifies the combination of expressio... - https://man.mtool.work/duckdb/1.3/sql/query_syntax/grouping_sets.html
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