Hi everybody,
I just wanted to let you know my notes I took during the upgrade process
from Postgresql 9.1 to 9.3 and Postgis 1.5 to 2.1. Maybe someone finds
them useful. I'm running the cluster on FreeBSD 9.2 so all commands
apply to FreeBSD of course, but it should be fairly easy to translate
I've googled the docs but I can't seem to make a link as to how to execute
database queries from inside a C function. I'm used to having a PGconn and
using the API around that, but how do I do that from inside a C function (and a
bit later on, a language handler?)
Thanks
James
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Hello
you should to use a SPI API
http://www.postgresql.org/docs/9.3/static/spi.html
http://www.postgresql.org/docs/9.3/static/spi-spi-exec.html
Regards
Pavel Stehule
2014-02-25 13:22 GMT+01:00 James Harper james.har...@bendigoit.com.au:
I've googled the docs but I can't seem to make a
Hello
you should to use a SPI API
http://www.postgresql.org/docs/9.3/static/spi.html
http://www.postgresql.org/docs/9.3/static/spi-spi-exec.html
Yep just found it. I obviously didn't google hard enough.
Thanks
James
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2014-02-25 13:36 GMT+01:00 James Harper james.har...@bendigoit.com.au:
Hello
you should to use a SPI API
http://www.postgresql.org/docs/9.3/static/spi.html
http://www.postgresql.org/docs/9.3/static/spi-spi-exec.html
Yep just found it. I obviously didn't google hard enough.
It
I am working on a project for which I require some assistance. Any input
would be appreciated.
We have a table with millions of records and dozens of columns. On some
systems, it takes up 10GB of disk space, and it runs on a single disk
which is rather slow (7200 RPM). We typically don't do any
On Tue, Feb 25, 2014 at 9:08 AM, Eliot Gable
egable+pgsql-gene...@gmail.com wrote:
If we wanted to put an index on a JSON data type column whose values was a
simple array of IDs, what would the index look like, and how would we
construct the query to make use of it?
For 9.0, your only option
Eliot Gable-4 wrote
I advocated creating a separate mapping table which
maps the ID of these records to the other ID we are searching for and
performing a JOIN on the two tables with appropriate foreign key
relationships and indices. However, I was ask to instead put the list into
a single
David Johnston wrote
Eliot Gable-4 wrote
I advocated creating a separate mapping table which
maps the ID of these records to the other ID we are searching for and
performing a JOIN on the two tables with appropriate foreign key
relationships and indices. However, I was ask to instead put
To be clear, this is with PostgreSQL 9.1. Also, if there is some other
way of doing this, I'd be interested in other methodologies as well.
Zev
On 02/24/2014 10:41 PM, Zev Benjamin wrote:
Hi all,
I'm sure this has been answered somewhere, but I was not able to find
anything in the list
I think index should help.
Why don't you try it out and check the explain plan of it?
If you are planning to break it down as below:
1. ALTER TABLE foo ADD COLUMN bar boolean;
2. UPDATE foo SET bar = False; -- Done in batches
3. ALTER TABLE foo ALTER COLUMN bar SET DEFAULT False;
4. ALTER TABLE
We ran into an open file limit on the DB host (Mac OS X 10.9.0, Postgres 9.3.2)
and caused the familiar ERROR: unexpected chunk number 0 (expected 1) for
toast value 155900302 in pg_toast_16822 when selecting data.
Previously when we've run into this kind of corruption we could find the
EXPLAIN does not appear to work on ALTER TABLE statements:
= EXPLAIN ALTER TABLE foo ALTER COLUMN bar SET NOT NULL;
ERROR: syntax error at or near ALTER
LINE 1: explain ALTER TABLE foo ALTER COLUMN bar SET NOT NULL;
^
Zev
On 02/25/2014 01:56 PM, Sameer Kumar wrote:
I think
On Tue, Feb 25, 2014 at 11:17 AM, David Johnston pol...@yahoo.com wrote:
David Johnston wrote
Eliot Gable-4 wrote
I advocated creating a separate mapping table which
maps the ID of these records to the other ID we are searching for and
performing a JOIN on the two tables with
On Tue, Feb 25, 2014 at 3:13 PM, Eliot Gable egable+pgsql-gene...@gmail.com
wrote:
On Tue, Feb 25, 2014 at 11:17 AM, David Johnston pol...@yahoo.com wrote:
David Johnston wrote
Eliot Gable-4 wrote
I advocated creating a separate mapping table which
maps the ID of these records to the
Somehow my comments didn't go thru on the soup blog but wanted to throw
in more support for this patch
Josh, you are so right on the money. An ACID compliant db that serves
JSON is great. Sorry I didn't make SCALE this year to hear the PG talks
and stop by and say hi. Maybe at Open West ?
On Tue, Feb 25, 2014 at 3:43 PM, john.tiger john.tigernas...@gmail.com wrote:
Somehow my comments didn't go thru on the soup blog but wanted to throw in
more support for this patch
Josh, you are so right on the money. An ACID compliant db that serves JSON
is great. Sorry I didn't make SCALE
Hello!
I am trying to use the crosstab() function in PostgreSQL 9.0 under Windows 7.
My table has three columns: a timestamp, a tag name and a tag value. I am
trying to generate a table that has one column for every distinct value in the
tag name field. Each row of the crosstab table will
On 25 February 2014 23:30, Rob Richardson rdrichard...@rad-con.com wrote:
Hello!
I am trying to use the crosstab() function in PostgreSQL 9.0 under Windows
7. My table has three columns: a timestamp, a tag name and a tag value. I
am trying to generate a table that has one column for
The documentation says:
CASE search-expression
WHEN expression [, expression [ ... ]] THEN
statements
[ WHEN expression [, expression [ ... ]] THEN
statements
... ]
[ ELSE
statements ]
END CASE;
And it repeats the END CASE phrase in other examples.
However, that
Susan Cassidy susan.cass...@decisionsciencescorp.com writes:
The documentation says:
CASE search-expression
WHEN expression [, expression [ ... ]] THEN
statements
[ WHEN expression [, expression [ ... ]] THEN
statements
... ]
[ ELSE
statements ]
END CASE;
plpgsql case use end case，while sql case use end，they are different language
jov
在 2014-2-26 上午8:32，Susan Cassidy susan.cass...@decisionsciencescorp.com
写道：
The documentation says:
CASE search-expression
WHEN expression [, expression [ ... ]] THEN
statements
[ WHEN expression
On Mon, Feb 24, 2014 at 7:41 PM, Zev Benjamin
zev-pg...@strangersgate.com wrote:
[...]
ALTER TABLE foo ADD COLUMN bar boolean;
UPDATE foo SET bar = False; -- Done in batches
ALTER TABLE foo ALTER COLUMN bar SET DEFAULT False;
ALTER TABLE foo ALTER COLUMN bar SET NOT NULL;
You should set
On 02/25/2014 04:41 AM, Zev Benjamin wrote:
I'm conceptually trying to do
ALTER TABLE foo ADD COLUMN bar boolean NOT NULL DEFAULT False;
without taking any noticeable downtime. I know I can divide the query
up like so:
ALTER TABLE foo ADD COLUMN bar boolean;
UPDATE foo SET bar = False; --
Does anybody have any ideas about this.
We restarted the postmaster and the issue persists. So previously in 9.0.4
where we could clean corruption, it seems in 9.3.2 we can no longer clean
corruption.o I'm assuming this because our data insert environment has not
changed, so we shouldn't be
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