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Subject [GitHub] [spark] brkyvz commented on issue #26974: [SPARK-30324][SQL] Simplify JSON field access through dot notation
Date Tue, 24 Dec 2019 22:08:54 GMT
brkyvz commented on issue #26974: [SPARK-30324][SQL] Simplify JSON field access through dot
notation
URL: https://github.com/apache/spark/pull/26974#issuecomment-568806444
 
 
   @HyukjinKwon Snowflake uses `:` notation on the column before getting nested fields. I
think that's the most obvious and nicest one:
   https://docs.snowflake.net/manuals/user-guide/querying-semistructured.html#dot-notation
   
   Splunk requires you to use `spath` before you can specify which column you want:
   https://www.crestdatasys.com/blogs/how-to-extract-complex-field-from-nested-json-events-using-splunk-spl/
   
   IMHO I like Snowflake's API, because it is quite explicit. You have a clear separation
between which part is case insensitive matching, and which part is case sensitive. And it
is also clear that you're extracting a field from a semi-structured data format, instead of
assuming the column is already parsed.

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