https://drill.apache.org/apidocs/org/apache/drill/exec/physical/impl/unpivot/package-use.html
Uses of Package org.apache.drill.exec.physical.impl.unpivot (Drill : 1.22.0 API)
use: package: org.apache.drill.exec.physical.impl.unpivot
https://techcommunity.microsoft.com/blog/sqlserver/the-unpivot-operator/383309
The UNPIVOT Operator | Microsoft Community Hub
Mar 23, 2019 - First published on MSDN on Jul 17, 2007 The UNPIVOT operator is the opposite of the PIVOT operator.
microsoft communityoperatorhub
https://learn.microsoft.com/en-us/training/modules/transform-data-by-implementing-pivot-unpivot-rollup-cube/2-write-queries-that-pivot-unpivot-result-sets
Write queries that pivot and unpivot result sets - Training | Microsoft Learn
Write queries that pivot and unpivot result sets
writequeriespivot
https://unpivot-sql.com/
Unpivot SQL
sql
https://support.microsoft.com/en-au/office/unpivot-columns-power-query-0f7bad4b-9ea1-49c1-9d95-f588221c7098
Unpivot columns (Power Query) - Microsoft Support
In Power Query, you can transform selected columns into attribute-value pairs where columns become rows. You use Power Query's Query Editor to unpivot columns.
power querycolumnsmicrosoftsupport