Обсуждение: Token length limit

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Token length limit

От
"Ansley, Michael"
Дата:
Hi,

Now that the query strings are effectively unlimited in length, the point
that I mentioned in a previous mail about the token length being limited to
16kB becomes an issue.  One of the reasons for wanting a large query string
length is to allow people to insert long text strings into a text field.
However, if I understand things right, the token length will limit the text
going into the text field to 16kB.  Is this right?  Should I have a look at
how to increase the token length arbitrarily?

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Re: [HACKERS] Token length limit

От
Tom Lane
Дата:
"Ansley, Michael" <Michael.Ansley@intec.co.za> writes:
> Now that the query strings are effectively unlimited in length, the point
> that I mentioned in a previous mail about the token length being limited to
> 16kB becomes an issue.  One of the reasons for wanting a large query string
> length is to allow people to insert long text strings into a text field.
> However, if I understand things right, the token length will limit the text
> going into the text field to 16kB.  Is this right?  Should I have a look at
> how to increase the token length arbitrarily?

Yes, and yes.  It's not a critical issue as long as we have limited
tuple sizes, but we do need to fix this eventually.

(Actually I think the limit is currently 64k not 16k, because of the
hack that parser/Makefile applies to scan.c, but the point is there
shouldn't be any hardwired limit...)
        regards, tom lane