John Compitello created SPARK-19648:
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Summary: Unable to access column containing '.' for approxQuantile
function on DataFrame
Key: SPARK-19648
URL: https://issues.apache.org/jira/browse/SPARK-19648
Project: Spark
Issue Type: Bug
Components: PySpark, SQL
Affects Versions: 2.0.2
Environment: Running spark in an ipython prompt on Mac OSX.
Reporter: John Compitello
It seems that the approx quantiles method does not offer any way to access a
column with a period in string name. I am aware of the backtick solution, but
it does not work in this scenario.
For example, let's say I have a column named 'va.x'. Passing approx quantiles
this string without backticks results in the following error:
'Cannot resolve column name '`va.x`' given input columns: ........'
Note that backticks seem to have been automatically inserted, but it cannot
find column name regardless.
If I do include backticks, I get a different error. An IllegalArgumentException
is thrown as follows:
"IllegalArgumentException: 'Field "`va.x`" does not exist."
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