A window function is a type of SQL operation that aggregates over a partition of the result set.
I want to know if Spark knows the partitioning key of the parquet file and uses this information to avoid …
apache-spark partitioning window-functionsMy question is triggered by the use case of calculating the differences between consecutive rows in a spark dataframe. For …
apache-spark pyspark apache-spark-sql partitioning window-functionsI have a data with following columns: Date CID FID rank 31/01/17 abc0001 rx180x01 0 31/01/17 abc0001 rx180x02 0 31/01/17 abc0001 rx180x03 2 28/02/17 …
r dplyr window-functions mutateI'm trying to solve this particular problem from PGExercises.com: https://www.pgexercises.com/questions/aggregates/rankmembers.html The gist …
sql postgresql integer window-functions integer-divisionWithout resorting to CTEs or a sub-query is there any way to use Window functionality with a different summary level …
sql count sum snowflake-cloud-data-platform window-functionsI'm trying to create a view with row numbers like so: create or replace view daily_transactions as select generate_…
sql postgresql view window-functions sql-viewDescription Given a dataframe df id | date --------------- 1 | 2015-09-01 2 | 2015-09-01 1 | 2015-09-03 1 | 2015-09-04 2 | 2015-09-04 I want …
scala apache-spark apache-spark-sql window-functionsI'm working with Teradata conversion to Hive (version 0.10.0). Teradata Query : QUALIFY ROW_NUMBER() OVER (PARTITION BY ADJSTMNT,SRC_CMN , TYPE_…
sql hive window-functionsI have this data table and I'm wondering if is possible create a query that get a cumulative sum by …
sql postgresql aggregate-functions window-functions generate-seriesI'm looking for something similar this in SQL Server: SELECT TOP n WITH TIES FROM tablename I know about LIMIT …
sql postgresql window-functions sql-limit