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https://issues.apache.org/jira/browse/SPARK-7551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-7551:
-----------------------------------
Assignee: Apache Spark (was: Wenchen Fan)
> Don't split by dot if within backticks for DataFrame attribute resolution
> -------------------------------------------------------------------------
>
> Key: SPARK-7551
> URL: https://issues.apache.org/jira/browse/SPARK-7551
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Reynold Xin
> Assignee: Apache Spark
> Priority: Critical
>
> DataFrame's resolve:
> {code}
> protected[sql] def resolve(colName: String): NamedExpression = {
> queryExecution.analyzed.resolve(colName.split("\\."),
> sqlContext.analyzer.resolver).getOrElse {
> throw new AnalysisException(
> s"""Cannot resolve column name "$colName" among
> (${schema.fieldNames.mkString(", ")})""")
> }
> }
> {code}
> We should not split the parts quoted by backticks (`).
> For example, `ab.cd`.`efg` should be split into two parts "ab.cd" and "efg".
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