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Apache Spark commented on SPARK-18952: -------------------------------------- User 'brkyvz' has created a pull request for this issue: https://github.com/apache/spark/pull/16361 > regex strings not properly escaped in codegen for aggregations > -------------------------------------------------------------- > > Key: SPARK-18952 > URL: https://issues.apache.org/jira/browse/SPARK-18952 > Project: Spark > Issue Type: Bug > Components: SQL > Affects Versions: 2.0.2 > Reporter: Burak Yavuz > > If I use the function regexp_extract, and then in my regex string, use `\`, > i.e. escape character, this fails codegen, because the `\` character is not > properly escaped when codegen'd. > Example stack trace: > {code} > /* 059 */ private int maxSteps = 2; > /* 060 */ private int numRows = 0; > /* 061 */ private org.apache.spark.sql.types.StructType keySchema = new > org.apache.spark.sql.types.StructType().add("date_format(window#325.start, > yyyy-MM-dd HH:mm)", org.apache.spark.sql.types.DataTypes.StringType) > /* 062 */ .add("regexp_extract(source#310.description, ([a-zA-Z]+)\[.*, > 1)", org.apache.spark.sql.types.DataTypes.StringType); > /* 063 */ private org.apache.spark.sql.types.StructType valueSchema = new > org.apache.spark.sql.types.StructType().add("sum", > org.apache.spark.sql.types.DataTypes.LongType); > /* 064 */ private Object emptyVBase; > ... > org.codehaus.commons.compiler.CompileException: File 'generated.java', Line > 62, Column 58: Invalid escape sequence > at org.codehaus.janino.Scanner.scanLiteralCharacter(Scanner.java:918) > at org.codehaus.janino.Scanner.produce(Scanner.java:604) > at org.codehaus.janino.Parser.peekRead(Parser.java:3239) > at org.codehaus.janino.Parser.parseArguments(Parser.java:3055) > at org.codehaus.janino.Parser.parseSelector(Parser.java:2914) > at org.codehaus.janino.Parser.parseUnaryExpression(Parser.java:2617) > at > org.codehaus.janino.Parser.parseMultiplicativeExpression(Parser.java:2573) > at org.codehaus.janino.Parser.parseAdditiveExpression(Parser.java:2552) > {code} > In the codegend expression, the literal should use `\\` instead of `\` -- 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