Github user chutium commented on the pull request:
https://github.com/apache/spark/pull/2044#issuecomment-52748630
actually i totally agree with you @liancheng , this was reported in user
list
http://apache-spark-user-list.1001560.n3.nabble.com/sqlContext-parquetFile-path-fails-if-path-is-a-file-but-succeeds-if-a-directory-td12345.html
i think he is also right, parameter of sqlContext.parquetFile should be a
dir of parquet files (at better with a _metadata file in it), but this should
not be a mandatory requirement, our javadoc
https://spark.apache.org/docs/latest/api/java/org/apache/spark/sql/SQLContext.html#parquetFile(java.lang.String)
says also, this method "Loads a Parquet file", not "loads a dir of parqauet
files"...
otherwise maybe we should rename this method to sqlContext.parquetDir or
somthing
and this PR is not "try to handle", it is more like "try to ignore useless
check" :) it is already handled by children.find(...)
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