Re: pg_migrator and an 8.3-compatible tsvector data type

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Josh Berkus <josh(at)agliodbs(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Oleg Bartunov <oleg(at)sai(dot)msu(dot)su>, Teodor Sigaev <teodor(at)sigaev(dot)ru>
Subject: Re: pg_migrator and an 8.3-compatible tsvector data type
Date: 2009-05-28 22:19:01
Message-ID: 1666.1243549141@sss.pgh.pa.us
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Bruce Momjian <bruce(at)momjian(dot)us> writes:
> Josh Berkus wrote:
>> Given that it's going to prevent users of Tsearch from
>> upgrading-in-place, the format change ought to be giving us some serious
>> gains. Otherwise we should put it off until we need to make other
>> datatype changes.

> No idea but now that we are in beta we would then be invalidating beta
> tester data. The area I got stuck on is that there is no CAST behavior
> when creating an index. We are already invalidating GIN indexes, but I
> can't even create an index to support the old data type.

It's certainly doable. Bruce is just applying the strategy he mentioned
in our talk ;-)

regards, tom lane

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