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From paul-rogers <...@git.apache.org>
Subject [GitHub] drill pull request #859: DRILL-2478: Validating values assigned to SYSTEM/SE...
Date Thu, 22 Jun 2017 00:23:03 GMT
Github user paul-rogers commented on a diff in the pull request:

    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/ExecConstants.java ---
    @@ -166,7 +166,7 @@
       String DEFAULT_TEMPORARY_WORKSPACE = "drill.exec.default_temporary_workspace";
       String OUTPUT_FORMAT_OPTION = "store.format";
    -  OptionValidator OUTPUT_FORMAT_VALIDATOR = new StringValidator(OUTPUT_FORMAT_OPTION,
    +  OptionValidator OUTPUT_FORMAT_VALIDATOR = new EnumeratedStringValidator(OUTPUT_FORMAT_OPTION,
"parquet", "parquet", "json", "psv", "csv", "tsv", "csvh");
    --- End diff --
    Is this the right approach? This validator means that anyone who adds an output file format
must modify this file and rebuild all of Drill in order to use that format by default. Not
sure we want such tight binding.
    Seems a better idea would be to register all known output formats at runtime, validate
the option against that list, warn if the format is unknown, and default to Parquet.

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