Re: Suggestion on column cast automatically to data type - Mailing list pgsql-admin

From David G. Johnston
Subject Re: Suggestion on column cast automatically to data type
Date
Msg-id CAKFQuwZzX3GN7Y9SDsb=WP9spvWCWwxqk0hjXuqiNNAsDnfJcw@mail.gmail.com
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In response to Suggestion on column cast automatically to data type  (postgann2020 s <postgann2020@gmail.com>)
List pgsql-admin
Random cross-posting choices...you should restrict yourself to just posting to -general...

On Thu, May 21, 2020 at 7:38 AM postgann2020 s <postgann2020@gmail.com> wrote:
Hi Team,
Thanks for your support.

Could you please suggest on below query.

We are trying to changing the data type of the column, but for every time triggering "column "parental_path" cannot be cast automatically to type tsvector".

ALTER TABLE SCHEMA.TABLE ALTER COLUMN COLUMN_NAME  TYPE tsvector;

ERROR:  column "parental_path" cannot be cast automatically to type tsvector
HINT:  You might need to specify "USING parental_path::tsvector".

Q). Are we have any automatically changing mechanism for this type of conversion?.

Apparently not, otherwise the system would have used it...
 
Even after changing, getting below error.

ALTER TABLE SCHEMA.TABLE ALTER COLUMN COLUMN_NAME  TYPE tsvector;
ERROR:  word is too long (2087 bytes, max 2046 bytes)

Q)Suggest, how to avoid these situations?.


So what single word in your document is more than 2k in size?

You've hit a documented limit to the data type you are using.

 
You ask for opinions but give people insufficient information about both the data and the usage to adequately form them. 

David J.

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