Re: Tackling JsonPath support
От | Christian Convey |
---|---|
Тема | Re: Tackling JsonPath support |
Дата | |
Msg-id | CAPfS4ZwDb5-7rzK-cDewbBZ=2n-W+bdOGiwAPF9U9io8ihUmFw@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Tackling JsonPath support (Pavel Stehule <pavel.stehule@gmail.com>) |
Список | pgsql-hackers |
On Mon, Nov 28, 2016 at 5:20 AM, Pavel Stehule <pavel.stehule@gmail.com> wrote:
...
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 guidance.
Thanks,
Christian
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