On Wednesday, January 9, 2013 at 04:42, Michael Nolan wrote:
On 1/8/13, Gavan Schneider wrote:
2. SELECT ... WHERE
'2011-01-01'::TIMESTAMP = col_of_type_timestamp
ANDcol_of_type_timestamp =
'2011-12-31'::TIMESTAMP;
This won't quite work, because
On Jan 8, 2013 6:15 PM, Kirk Wythers wythe...@umn.edu wrote:
On Jan 8, 2013, at 6:48 PM, Tom Lane t...@sss.pgh.pa.us wrote:
The OP didn't
suggest how many years his data covers, but it's quite possible that
pulling a full year's worth of data will read enough of the table that
there's no
On 01/08/2013 06:15 PM, Kirk Wythers wrote:
On Jan 8, 2013, at 6:48 PM, Tom Lane t...@sss.pgh.pa.us
mailto:t...@sss.pgh.pa.us wrote:
The OP didn't
suggest how many years his data covers, but it's quite possible that
pulling a full year's worth of data will read enough of the table that
On 1/8/13, Gavan Schneider pg-...@snkmail.com wrote:
2. SELECT ... WHERE
'2011-01-01'::TIMESTAMP = col_of_type_timestamp
ANDcol_of_type_timestamp =
'2011-12-31'::TIMESTAMP;
This won't quite work, because '2011-12-31'::TIMESTAMP
is the same as
It is probably not the most efficient, but I often use this syntax,
which reads better.
Select . where col_type_timestamp::date between '2011-01-01' and
'2011-12-31'
This will use a timestamp index.
--
Mike Nolan
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To
On Tue, Jan 08, 2013 at 04:19:59PM -0600, Kirk Wythers wrote:
I have a column of type TIMESTAMP, I'd like to query all records from 2011.
If it were text I could use a partial such as:
WHERE
text ~ '2011'
There must be a simple way to pull the year part out of a timestamp format.
I have a column of type TIMESTAMP, I'd like to query all records from 2011. If
it were text I could use a partial such as:
WHERE
text ~ '2011'
There must be a simple way to pull the year part out of a timestamp format.
Thanks in advance.
--
Sent via pgsql-general mailing list
On 08/01/2013 22:19, Kirk Wythers wrote:
I have a column of type TIMESTAMP, I'd like to query all records from
2011. If it were text I could use a partial such as:
WHERE text ~ '2011'
There must be a simple way to pull the year part out of a timestamp
format. Thanks in advance.
You want
On 08/01/2013 22:26, Raymond O'Donnell wrote:
On 08/01/2013 22:19, Kirk Wythers wrote:
I have a column of type TIMESTAMP, I'd like to query all records from
2011. If it were text I could use a partial such as:
WHERE text ~ '2011'
There must be a simple way to pull the year part out of a
On 01/08/2013 03:39 PM, Raymond O'Donnell wrote:
On 08/01/2013 22:26, Raymond O'Donnell wrote:
On 08/01/2013 22:19, Kirk Wythers wrote:
I have a column of type TIMESTAMP, I'd like to query all records from
2011. If it were text I could use a partial such as:
WHERE text ~ '2011'
There must be
On 01/08/2013 02:19 PM, Kirk Wythers wrote:
I have a column of type TIMESTAMP, I'd like to query all records from 2011. If
it were text I could use a partial such as:
WHERE
text ~ '2011'
There must be a simple way to pull the year part out of a timestamp format.
Thanks in advance.
On Tuesday, January 8, 2013 at 09:26, Raymond O'Donnell wrote:
On 08/01/2013 22:19, Kirk Wythers wrote:
I have a column of type TIMESTAMP, I'd like to query all records from
2011. If it were text I could use a partial such as:
WHERE text ~ '2011'
There must be a simple way to pull the year
Gavan Schneider pg-...@snkmail.com writes:
From my perspective there are at least three ways to attack
this problem:
(I have not tested these, so apologies for the stupid syntax errors.)
1. SELECT ... WHERE 2011 = extract(YEAR FROM col_of_type_timestamp);
2. SELECT ... WHERE
On Jan 8, 2013, at 6:48 PM, Tom Lane t...@sss.pgh.pa.us wrote:
The OP didn't
suggest how many years his data covers, but it's quite possible that
pulling a full year's worth of data will read enough of the table that
there's no point in worrying about whether an index could be used
anyway.
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