Pat McDonough created SPARK-18148:
-------------------------------------
Summary: Misleading Error Message for Aggregation Without
Window/GroupBy
Key: SPARK-18148
URL: https://issues.apache.org/jira/browse/SPARK-18148
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.0.0
Environment: Databricks
Reporter: Pat McDonough
The following error message points to a random column I'm not actually using in
my query, making it hard to diagnose.
{code}
org.apache.spark.sql.AnalysisException: expression '`randomColumn`' is neither
present in the group by, nor is it an aggregate function. Add to group by or
wrap in first() (or first_value) if you don't care which value you get.;
{code}
Note in the code below, I forgot to add {{.over(weeklyWindow)}} in the line for
{{withColumn("user_count"...}}
{code}
spark.read.load("/some-data")
.withColumn("date_dt", to_date($"date"))
.withColumn("year", year($"date_dt"))
.withColumn("week", weekofyear($"date_dt"))
.withColumn("user_count", count($"userId"))
.withColumn("daily_max_in_week", max($"user_count").over(weeklyWindow))
)
{code}
CC: [~marmbrus]
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
