On Fri, Oct 28, 2011 at 10:11 AM, Bruce Momjian <bruce@momjian.us> wrote:
Gurjeet Singh wrote: > > > I have tried reproducing the bug starting from 1 and 2 transactions > > before > > > the one shown in snippet, and I used tab-completion to get the same > > > screen-output as termonal1.txt and yet it's not reproducible. > > > > I could reproduce it when I typed TAB just after typing "set" in "set > > transaction snapshot". > > As Tom and Alvaro pointed out, the tab-completion issues a query and which > > prevents the "set transaction snapshot" command. > > > > Great! That settles it then. Reproducible, but not a bug.
Yes, it is only tabs that query the database for completion that cause this. Should this be documented somehow? (No idea how.)
If we have a doc section on psql's tab-completion, I think this needs to go there. A note like:
"Trying to tab-complete on psql may send queries to the server, and depending on the transaction state, execution of these queries may lead to non-default/unexpected behaviour by the queries executed after tab-completion. For example, ..."
Regards, --
Gurjeet Singh EnterpriseDB Corporation The Enterprise PostgreSQL Company