[jira] [Created] (DRILL-4341) Fails to parse string literals containing escaped quotes

["Oscar Morante (JIRA)" <ji...@apache.org>]

Oscar Morante created DRILL-4341:
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             Summary: Fails to parse string literals containing escaped quotes
                 Key: DRILL-4341
                 URL: https://issues.apache.org/jira/browse/DRILL-4341
             Project: Apache Drill
          Issue Type: Bug
    Affects Versions: 1.5.0
            Reporter: Oscar Morante


In some situations, Drill fails to parse strings with escaped single quotes.  Just changing the last line of this query makes the problem appear and disappear (without touching the string it's complaining about):

{code:sql}
select
  'yyyy-MM-dd''T''HH:mm:ss.SSS''Z'''
from
  s3; --> FAILS
  --s3.`2015`; --> FAILS
  --s3.`2015/11`; --> FAILS
  --s3.`2015/11/3`; --> WORKS
  --s3.`2015/11/3/10-1072045-1612661.json.gz`; --> WORKS
  --(select * from s3 limit 1); --> WORKS
  --(select * from s3.`2015` limit 1); --> WORKS
  --(select * from s3.`2015/11` limit 1); --> WORKS
{code}

This is the error when it fails:

{code}
ExampleExceptionFormatter: exception message was: SYSTEM ERROR: ExpressionParsingException: Expression has syntax error! line 1:12:missing EOF at 'T'

Fragment 1:1
{code}

This is very important when dealing with json files containing dates encoded as iso-8601 strings.  My current workaround is something like this:

{code:sql}
select to_timestamp(regexp_replace(`timestamp`, '[TZ]', ''),
                    'yyyy-MM-ddHH:mm:ss.SSS')
from s3;
{code}



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