Re: tsvector field length limitation
От | Jonathan Marks |
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Тема | Re: tsvector field length limitation |
Дата | |
Msg-id | 09ECA82E-C221-4D79-B2FC-5493F330B6EB@gmail.com обсуждение исходный текст |
Ответ на | Re: tsvector field length limitation (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: tsvector field length limitation
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Список | pgsql-general |
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 <tgl@sss.pgh.pa.us> wrote: > > Jonathan Marks <jonathanaverymarks@gmail.com> writes: >> ... we run into the max tsvector length requirement "The length of a tsvector (lexemes + positions) must be less than1 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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