"Tomeh, Husam" <[EMAIL PROTECTED]> writes:
> mtrac=# show maintenance_work_mem ;
>  maintenance_work_mem
> ----------------------
>  1048576        <======
> (1 row)

> mtrac=#
> mtrac=#
> mtrac=# create index mort_ht on mortgage(county_id,mtg_rec_dt);
> ERROR:  out of memory                                               <===
> DETAIL:  Failed on request of size 134217728.               <===

It would be useful to look at the detailed allocation info that this
(should have) put into the postmaster log.  Also, if you could get
a stack trace back from the error, that would be even more useful.
To do that,
        * start psql
        * determine PID of connected backend (use pg_backend_pid())
        * in another window, as postgres user,
                gdb /path/to/postgres backend-PID
                gdb> break errfinish
                gdb> cont
        * issue failing command in psql
        * when breakpoint is reached,
                gdb> bt
                ... stack trace printed here ...
                gdb> q

                        regards, tom lane

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