Tag: grouping
Understanding Index Grouping And Aggregation in Couchbase N1QL Query
Couchbase N1QL is a modern query processing engine designed to provide aggregate SQL for JSON by index on distributed data with a flexible data model. Modern databases are deployed on massive clusters. Using JSON provides a flexible data mode. N1QL...
Sitaram Vemulapalli
April 3, 2018
Aggregate grouping with N1QL / MapReduce
Aggregate grouping is what I’m titling this blog post, but I don’t know if it’s the best name. Have you ever used MySQL’s GROUP_CONCAT function or the FOR XML PATH('') workaround in SQL Server? That’s basically what I’m writing about...
Matthew Groves
August 22, 2017