On Mon, Nov 28, 2016 at 5:20 AM, Pavel Stehule <pavel.steh...@gmail.com>

> Con: "JSON path expression" is a recurring them in the *grammars* of
>> user-facing operators in [1], [2], [3], and [4].  But it doesn't
>> necessarily follow that the function implemented in Step 2 will provide
>> useful infrastructure for PG's eventual implementations of "JSON_TABLE",
>> etc.
> We can implement subset only - our XPath based on libxml2 does it too. The
> good target is support of usual examples on the net.

​Hi Pavel,

Can you clarify what you meant?  I *think* you're saying:

* It's not important for me to match the syntax/semantics of the json-path
implementations found in MySQL / Oracle / DB2 / ​MS SQL Server, and

* Instead, I should just use examples / explanations on the web as my


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