[SQL] Use of cmin in psql

[sathiya moorthy]

hi,

what is the use of the cmin system column....

After inserting if i see this column cmin has the 0 in the ordinary places.....,

If it is in the transaction place ( between BEGIN and END ) where i had deleted and rollbacked that column has the 33397398 somw what large number..............

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sathiyamoorthy