[jira] [Created] (DRILL-7060) Support Jackson Parser Feature 'ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER' in JSON Reader

["Abhishek Girish (JIRA)" <ji...@apache.org>]

Abhishek Girish created DRILL-7060:
--------------------------------------

             Summary: Support Jackson Parser Feature 'ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER' in JSON Reader
                 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
             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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