GitHub user rdblue opened a pull request:

    SPARK-18677: Fix parsing ['key'] in JSON path expressions.

    ## What changes were proposed in this pull request?
    This fixes the parser rule to match named expressions, which doesn't work 
for two reasons:
    1. The name match is not coerced to a regular expression (missing .r)
    2. The surrounding literals are incorrect and attempt to escape a single 
quote, which is unnecessary
    ## How was this patch tested?
    This adds test cases for named expressions using the bracket syntax, 
including one with quoted spaces.

You can merge this pull request into a Git repository by running:

    $ git pull SPARK-18677-fix-json-path

Alternatively you can review and apply these changes as the patch at:

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #16107
commit 1c0cc097c5ee6f35da6fab732d7e7408d6306d1e
Author: Ryan Blue <>
Date:   2016-12-01T20:24:58Z

    SPARK-18677: Fix parsing ['key'] in JSON path expressions.


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