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From "Xiao Li (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-12451) Regexp functions don't support patterns containing '*/'
Date Mon, 21 Dec 2015 18:37:46 GMT

    [ https://issues.apache.org/jira/browse/SPARK-12451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15066840#comment-15066840
] 

Xiao Li commented on SPARK-12451:
---------------------------------

This is a duplicate of https://issues.apache.org/jira/browse/SPARK-11352

The problem has been resolved. You can get the fix in 1.5.3 and 1.6

Thanks!

> Regexp functions don't support patterns containing '*/'
> -------------------------------------------------------
>
>                 Key: SPARK-12451
>                 URL: https://issues.apache.org/jira/browse/SPARK-12451
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.5.2
>            Reporter: William Dee
>
> When using the regexp functions in Spark SQL, patterns containing '*/' create runtime
errors in the auto generated code. This is due to the fact that the code generator creates
a multiline comment containing, amongst other things, the pattern.
> Here is an excerpt from my stacktrace to illustrate: (Helpfully, the stack trace includes
all of the auto-generated code)
> {code}
> Caused by: org.codehaus.commons.compiler.CompileException: Line 232, Column 54: Unexpected
token "," in primary
> 	at org.codehaus.janino.Parser.compileException(Parser.java:3125)
> 	at org.codehaus.janino.Parser.parsePrimary(Parser.java:2512)
> 	at org.codehaus.janino.Parser.parseUnaryExpression(Parser.java:2252)
> 	at org.codehaus.janino.Parser.parseMultiplicativeExpression(Parser.java:2211)
> 	at org.codehaus.janino.Parser.parseAdditiveExpression(Parser.java:2190)
> 	at org.codehaus.janino.Parser.parseShiftExpression(Parser.java:2169)
> 	at org.codehaus.janino.Parser.parseRelationalExpression(Parser.java:2072)
> 	at org.codehaus.janino.Parser.parseEqualityExpression(Parser.java:2046)
> 	at org.codehaus.janino.Parser.parseAndExpression(Parser.java:2025)
> 	at org.codehaus.janino.Parser.parseExclusiveOrExpression(Parser.java:2004)
> 	at org.codehaus.janino.Parser.parseInclusiveOrExpression(Parser.java:1983)
> 	at org.codehaus.janino.Parser.parseConditionalAndExpression(Parser.java:1962)
> 	at org.codehaus.janino.Parser.parseConditionalOrExpression(Parser.java:1941)
> 	at org.codehaus.janino.Parser.parseConditionalExpression(Parser.java:1922)
> 	at org.codehaus.janino.Parser.parseAssignmentExpression(Parser.java:1901)
> 	at org.codehaus.janino.Parser.parseExpression(Parser.java:1886)
> 	at org.codehaus.janino.Parser.parseBlockStatement(Parser.java:1149)
> 	at org.codehaus.janino.Parser.parseBlockStatements(Parser.java:1085)
> 	at org.codehaus.janino.Parser.parseMethodDeclarationRest(Parser.java:938)
> 	at org.codehaus.janino.Parser.parseClassBodyDeclaration(Parser.java:620)
> 	at org.codehaus.janino.Parser.parseClassBody(Parser.java:515)
> 	at org.codehaus.janino.Parser.parseClassDeclarationRest(Parser.java:481)
> 	at org.codehaus.janino.Parser.parseClassBodyDeclaration(Parser.java:577)
> 	at org.codehaus.janino.ClassBodyEvaluator.cook(ClassBodyEvaluator.java:229)
> 	at org.codehaus.janino.SimpleCompiler.cook(SimpleCompiler.java:192)
> 	at org.codehaus.commons.compiler.Cookable.cook(Cookable.java:84)
> 	at org.codehaus.commons.compiler.Cookable.cook(Cookable.java:77)
> 	at org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator.org$apache$spark$sql$catalyst$expressions$codegen$CodeGenerator$$doCompile(CodeGenerator.scala:387)
> ... line 232 ...
>     /* regexp_replace(input[46, StringType],^.*/,) */
>     
>     /* input[46, StringType] */
>     
>     boolean isNull31 = i.isNullAt(46);
>     UTF8String primitive32 = isNull31 ? null : (i.getUTF8String(46));
>     
>     boolean isNull24 = true;
>     UTF8String primitive25 = null;
>     if (!isNull31) {
>       /* ^.*/ */
>       
>       /* expression: ^.*/ */
>       Object obj35 = expressions[4].eval(i);
>       boolean isNull33 = obj35 == null;
>       UTF8String primitive34 = null;
>       if (!isNull33) {
>         primitive34 = (UTF8String) obj35;
>       }
> ...
> {code}
> Note the multiple multiline comments, these obviously break when the regex pattern contains
the end-of-comment token '*/'



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