Tom Lane writes: > The reason it works in read-committed mode is that the second guy to > arrive at the row will observe that the row has an update in progress; > will block waiting for the previous updater to commit or abort; and if > commit, will use the updated version of the row as the starting point > for his update. (This is what the EvalPlanQual ugliness in the executor > is all about.)
Isn't that a violation of the principle that transactions in read committed mode will look at the data that was committed *before* the statement had begun? -- Peter Eisentraut [EMAIL PROTECTED] ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster