Tom Lane wrote:
> alphax <[EMAIL PROTECTED]> writes:
>> So, it seems the system column "cmin" is the logical "current version"
>> of that record, isn't it?
>
> No. Have you read
> http://www.postgresql.org/docs/8.2/static/ddl-system-colu
Marko Kreen wroted:
By the way, Can I think that the value of system column "ctid" of an
record is the logical "current version" of that record, and used to
compare with txid returned by "FUNCTIONS-TXID-SNAPSHOT"?
No, it is just physical location of the row.
Thanks, I just done some sim
Marko Kreen wrote:
> On 1/11/08, alphax <[EMAIL PROTECTED]> wrote:
>> I want to compare the record's transaction id in sql statements or
>> PL/pgSQL stored procedure. Are there any system function or operator can
>> safely(transaction id wraparound safed) compar
Hi,
I want to compare the record's transaction id in sql statements or
PL/pgSQL stored procedure. Are there any system function or operator can
safely(transaction id wraparound safed) compare the transaction id?
Thanks!
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T
