Wenchen Fan created SPARK-11619: ----------------------------------- Summary: cannot use UDTF in DataFrame.selectExpr Key: SPARK-11619 URL: https://issues.apache.org/jira/browse/SPARK-11619 Project: Spark Issue Type: Bug Components: SQL Reporter: Wenchen Fan Priority: Minor
Currently if use UDTF like `explode`, `json_tuple` in `DataFrame.selectExpr`, it will be parsed into `UnresolvedFunction` first, and then alias it with `expr.prettyString`. However, UDTF may need MultiAlias so we will get error if we run: {code} val df = Seq((Map("1" -> 1), 1)).toDF("a", "b") df.selectExpr("explode(a)").show() {code} [info] org.apache.spark.sql.AnalysisException: Expect multiple names given for org.apache.spark.sql.catalyst.expressions.Explode, [info] but only single name ''explode(a)' specified; -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org