Обсуждение: json functions
Hi,
I have PostgreSQL 9.2.1. I can see a few json functions under pg_catalog, json_send, for example. But I can’t find any documentation. Am I missing something?
Regards,
Jayadevan
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On Wed, Jun 19, 2013 at 2:00 PM, Jayadevan M <jayadevan.maymala@ibsplc.com> wrote: > I have PostgreSQL 9.2.1. I can see a few json functions under pg_catalog, > json_send, for example. But I can’t find any documentation. Am I missing > something? I am sure you are looking for that: http://www.postgresql.org/docs/9.2/static/datatype-json.html http://www.postgresql.org/docs/9.2/static/functions-json.html Note that 9.3 has far more features related to json: http://www.postgresql.org/docs/9.3/static/functions-json.html -- Michael
On Wed, Jun 19, 2013 at 12:00 AM, Jayadevan M <jayadevan.maymala@ibsplc.com> wrote: > Hi, > > > > I have PostgreSQL 9.2.1. I can see a few json functions under pg_catalog, > json_send, for example. But I can’t find any documentation. Am I missing > something? json_send like all send functions is internal. Not all functions available in the catalog are exposed through SQL -- for example they may be used to serialize data for transmission over the wire. If you can handle C you can hunt down the location of the function to see what it does (which isn't much since json is an already serialized format). merlin
Hi, >json_send like all send functions is internal. Not all functions available in the >catalog are exposed through SQL -- for example they may be used to serialize >data for transmission over the wire. If you can handle C you can hunt down >the location of the function to see what it does (which isn't much since json is >an already serialized format). OK. That explains it. I was wondering why we have quite a few functions under pg_catalog and just a few in the documentation.Thank you. Regards, Jayadevan DISCLAIMER: "The information in this e-mail and any attachment is intended only for the person to whom it is addressed andmay contain confidential and/or privileged material. If you have received this e-mail in error, kindly contact the senderand destroy all copies of the original communication. IBS makes no warranty, express or implied, nor guarantees theaccuracy, adequacy or completeness of the information contained in this email or any attachment and is not liable forany errors, defects, omissions, viruses or for resultant loss or damage, if any, direct or indirect."