Kousuke Saruta created SPARK-34763: -------------------------------------- Summary: col(), $"<name>" and df("name") should handle quoted column name properly. Key: SPARK-34763 URL: https://issues.apache.org/jira/browse/SPARK-34763 Project: Spark Issue Type: Bug Components: SQL Affects Versions: 3.1.1, 3.0.2, 2.4.7, 3.2.0 Reporter: Kousuke Saruta Assignee: Kousuke Saruta
Quoted column names like `a``b.c` cannot be represented with col(), $"<name>" and df("") because they don't handle such column names properly. For example, if we have a following DataFrame. {code} val df1 = spark.sql("SELECT 'col1' AS `a``b.c`") {code} For the DataFrame, this query is successfully executed. {code} scala> df1.selectExpr("`a``b.c`").show +-----+ |a`b.c| +-----+ | col1| +-----+ {code} But the following query will fail because df1("`a``b.c`") throws an exception. {code} scala> df1.select(df1("`a``b.c`")).show org.apache.spark.sql.AnalysisException: syntax error in attribute name: `a``b.c`; at org.apache.spark.sql.catalyst.analysis.UnresolvedAttribute$.e$1(unresolved.scala:152) at org.apache.spark.sql.catalyst.analysis.UnresolvedAttribute$.parseAttributeName(unresolved.scala:162) at org.apache.spark.sql.catalyst.plans.logical.LogicalPlan.resolveQuoted(LogicalPlan.scala:121) at org.apache.spark.sql.Dataset.resolve(Dataset.scala:221) at org.apache.spark.sql.Dataset.col(Dataset.scala:1274) at org.apache.spark.sql.Dataset.apply(Dataset.scala:1241) ... 49 elided {code} -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org