Re: Regarding creation of gin index on column that has varchar datatype

Am 23.05.20 um 12:37 schrieb Durgamahesh Manne:
> Hi
>
> Respected to PGDG GLOBAL TEAM
>
> I am getting this error( ERROR:  data type character varying has no
> default operator class for access method "gin"
> HINT:  You must specify an operator class for the index or define a
> default operator class for the data type ) while i try to create gin
> index on vch_message column of slp01 table (CREATE INDEX ON slp01
> using gin(vch_message);)
>
> vch_message column has lot of this info like
> {"requestBody":{"firstName":"SALVATORE","lastName":"NAPOLITANO","email":"remuda135(at)hotmail(dot)com
> <mailto:remuda135(at)hotmail(dot)com>","personID":"C48268","ClientSSN":"153520698","advisorPersonID":["10214","15270","15271","15272"]},"header":{"cache-control":"no-cache","content-type":"application/json","authorization":"Basic
> Y3JlYXRlVXNlcnM6ZGFrdm5laXdvbjRpOWZqb3duY3VpMzRmdW4zOTQ4aGY=","accept":"application/json,
> text/json, text/x-json, text/javascript, application/xml, text/xml"
>
>

the string looks like JSON (with missing the correct end of the string).
Please check. If you are storing JSON or JSONB - Values, you should use
the proper datatype -JSON/JSONB. In this case you can create an
GIN-Index on it.

Regards, Andreas
(and please don't email me private the same question)

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