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Posted to issues@drill.apache.org by "Abhishek Girish (JIRA)" <ji...@apache.org> on 2019/04/02 18:33:03 UTC
[jira] [Closed] (DRILL-7060) Support JsonParser Feature
'ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER' in JsonReader
[ https://issues.apache.org/jira/browse/DRILL-7060?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Abhishek Girish closed DRILL-7060.
----------------------------------
> Support JsonParser Feature 'ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER' in JsonReader
> ---------------------------------------------------------------------------------
>
> Key: DRILL-7060
> URL: https://issues.apache.org/jira/browse/DRILL-7060
> Project: Apache Drill
> Issue Type: Improvement
> Components: Storage - JSON
> Affects Versions: 1.15.0, 1.16.0
> Reporter: Abhishek Girish
> Assignee: Abhishek Girish
> Priority: Major
> Labels: ready-to-commit
> Fix For: 1.16.0
>
>
> Some JSON files may have strings with backslashes - which are read as escape characters. By default only standard escape characters are allowed. So querying such files would fail. For example see:
> Data
> {code}
> {"file":"C:\Sfiles\escape.json"}
> {code}
> Error
> {code}
> (com.fasterxml.jackson.core.JsonParseException) Unrecognized character escape 'S' (code 83)
> at [Source: (org.apache.drill.exec.store.dfs.DrillFSDataInputStream); line: 1, column: 178]
> com.fasterxml.jackson.core.JsonParser._constructError():1804
> com.fasterxml.jackson.core.base.ParserMinimalBase._reportError():663
> com.fasterxml.jackson.core.base.ParserMinimalBase._handleUnrecognizedCharacterEscape():640
> com.fasterxml.jackson.core.json.UTF8StreamJsonParser._decodeEscaped():3243
> com.fasterxml.jackson.core.json.UTF8StreamJsonParser._skipString():2537
> com.fasterxml.jackson.core.json.UTF8StreamJsonParser.nextToken():683
> org.apache.drill.exec.vector.complex.fn.JsonReader.writeData():342
> org.apache.drill.exec.vector.complex.fn.JsonReader.writeDataSwitch():298
> org.apache.drill.exec.vector.complex.fn.JsonReader.writeToVector():246
> org.apache.drill.exec.vector.complex.fn.JsonReader.write():205
> org.apache.drill.exec.store.easy.json.JSONRecordReader.next():216
> org.apache.drill.exec.physical.impl.ScanBatch.internalNext():223
> ...
> ...
> {code}
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