We have two index's like so
l1_historical=# \d N_intra_time_idx
Index N_intra_time_idx
Column |Type
+-
time | timestamp without time zone
btree
l1_historical=# \d N_intra_pkey
Index N_intra_pkey
Column |Type
Oh, we are running 7.4.2 btw. And our random_page_cost = 1
On 13 Jun 2005, at 14:02, Alex Stapleton wrote:
We have two index's like so
l1_historical=# \d N_intra_time_idx
Index N_intra_time_idx
Column |Type
+-
time | timestamp without
Alex Stapleton [EMAIL PROTECTED] writes:
l1_historical=# \d N_intra_pkey
Index N_intra_pkey
Column |Type
+-
symbol | text
time | timestamp without time zone
unique btree (primary key)
and on queries like this
select * from
Alex Stapleton wrote:
Oh, we are running 7.4.2 btw. And our random_page_cost = 1
Which is only correct if your entire db fits into memory. Also, try
updating to a later 7.4 version if at all possible.
On 13 Jun 2005, at 14:02, Alex Stapleton wrote:
We have two index's like so
On 13 Jun 2005, at 15:47, John A Meinel wrote:
Alex Stapleton wrote:
Oh, we are running 7.4.2 btw. And our random_page_cost = 1
Which is only correct if your entire db fits into memory. Also, try
updating to a later 7.4 version if at all possible.
I am aware of this, I didn't
Tom Lane wrote:
This was just covered in excruciating detail yesterday ...
You need to write
order by symbol desc, time desc limit 1
to get the planner to recognize the connection to the sort order
of this index. Since you're only selecting one value of symbol,
the actual output
