What if we just didn’t use positional arguments at all? I.e. we just populate 
the tsvector with lexemes only?

> On Jun 20, 2018, at 10:49 AM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> 
> Jonathan Marks <jonathanaveryma...@gmail.com> writes:
>> ... we run into the max tsvector length requirement "The length of a 
>> tsvector (lexemes + positions) must be less than 1 megabyte”
> 
>> Is there any way to disable or increase that limit in Postgres 10.3?
> 
> No; it's forced by the representation used for tsvector, which stores
> lexeme offsets in 20-bit fields (cf WordEntry in
> src/include/tsearch/ts_type.h).  Perhaps that was short-sighted but
> I don't foresee it changing anytime soon.  You'd more or less need
> a whole new datatype ("bigtsvector"?) to make it happen.
> 
>                       regards, tom lane


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