| From: | Felipe Santos <felipepts(at)gmail(dot)com> |
|---|---|
| To: | Shujie Shang <sshang(at)pivotal(dot)io> |
| Cc: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Kavi <kaviraj125(at)gmail(dot)com>, pgsql-novice(at)postgresql(dot)org, pgsql-sql(at)postgresql(dot)org, PostgreSQL mailing lists <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: [SQL] [GENERAL] JSON TO POSTGRE TABLE |
| Date: | 2015-03-30 11:09:36 |
| Message-ID: | CAPYcRiXCLKvr-iO6YJ18KS57uDLJ9k=vTx9wt5MLaBtoYNuObA@mail.gmail.com |
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| Thread: | |
| Lists: | pgsql-general pgsql-novice pgsql-sql |
Hi,
> I want to ask a question about json index.
> Can I make a index on a field of a json column?
> e.g, for table 'json_tab' you given, can I run something like "create
> index 'json_index' on json_tab::key"?
>
Yes.
Here it is an example:
http://stackoverflow.com/questions/17807030/how-to-create-index-on-json-field-in-postgres-9-3
Also, in 9.4 we got JSONB data type, which may enhance JSON fields
performance.
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