neo4j/community — pull request #907 by wfreeman (2012-10-08 06:42:03+00:00)
Title: Adding Percentile aggregation functions.

This adds percentile aggregation functions: `PERCENTILE_DISC` and `PERCENTILE_CONT`, similar to SQL Server (new in 2012) and Oracle. They take a desired percentile value from 0.0 to 1.0, and a value to aggregate on.