| From: | Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | John Naylor <john(dot)naylor(at)2ndquadrant(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: jsonpath |
| Date: | 2019-05-17 15:35:01 |
| Message-ID: | CAPpHfduNg7WSR=A+YC8mA_c=7S+1=5Y9pUzUQxuQ9KS-mGu_bQ@mail.gmail.com |
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On Fri, May 17, 2019 at 6:50 AM Alexander Korotkov
<a(dot)korotkov(at)postgrespro(dot)ru> wrote:
> Couple patches improving jsonpath docs are attached. The first one
> documents nesting level filter for .** accessor. The second adds to
> documentation of jsonpath array subsciption usage of expressions and
> multiple slice ranges. I'm going to push both patches if no
> objections.
Looking more on documentation I found that I'm not exactly happy on
how jsonpath description is organized. Part of description including
accessors is given in json datatypes section [1], while part of
description including functions and operators is given in json
functions and operators section. I think we should give the whole
jsonpath description in the single place. So, what about moving it to
datatype section leaving functions sections with just SQL-level
functions?
1. https://www.postgresql.org/docs/devel/datatype-json.html#DATATYPE-JSONPATH
2. https://www.postgresql.org/docs/devel/functions-json.html#FUNCTIONS-SQLJSON-PATH
------
Alexander Korotkov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
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