Re: Speeding up the Postgres lexer

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Speeding up the Postgres lexer
Date: 2005-05-24 03:37:34
Message-ID: 16584.1116905854@sss.pgh.pa.us
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Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au> writes:
> However, the lexer isn't touched anywhere near as much as the grammar is
> right?

Yeah --- if you look at the CVS history, changes that affect the flex
rules (and not just the text of the C-code actions) are really rare
these days. If there were a lot of churn I'd think this proposal was
completely impractical, but there's not much anymore.

regards, tom lane

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