Suggestion on column cast automatically to data type

[postgann2020 s <postgann2020@xxxxxxxxx>]

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?.

>>>>>>>>>>>>>

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?.

Thanks for your support.

Regards,
PostgAnn.