On Mon, Oct 14, 2013 at 10:55 AM, Tom Lane wrote:
> Soroosh Sardari writes:
> > I developed a new character string type, named myvarchar.
> > Also an operator class for btree is added.
> > PROBLEM:
> > When I executed a query with where clause on 'mine' column, PG does not
> use
> > index.
>
> M
Soroosh Sardari writes:
> I developed a new character string type, named myvarchar.
> Also an operator class for btree is added.
> PROBLEM:
> When I executed a query with where clause on 'mine' column, PG does not use
> index.
Most likely you got the opclass definition wrong. Since you've shown
> 2013/10/14 Soroosh Sardari
>
>> Hi
>>
>> I developed a new character string type, named myvarchar.
>> Also an operator class for btree is added.
>>
>> I created a table with two columns, first have myvarchar(100) and other
>> is
>> varchar(100).
>>
>> CREATE TABLE test_myvarchar (mine myvarchar
Hello
pls, send a output of EXPLAIN ANALYZE statement,
there can be different reasons why optimizer doesn't choose some index
Regards
Pavel Stehule
2013/10/14 Soroosh Sardari
> Hi
>
> I developed a new character string type, named myvarchar.
> Also an operator class for btree is added.
>
>
Hi
I developed a new character string type, named myvarchar.
Also an operator class for btree is added.
I created a table with two columns, first have myvarchar(100) and other is
varchar(100).
CREATE TABLE test_myvarchar (mine myvarchar(100), plain varchar(100));
CREATE INDEX test_myvarchar_i_
"Joshua D. Drake" writes:
> On Mon, 2008-12-15 at 14:28 -0500, Tom Lane wrote:
>> "Joshua D. Drake" writes:
>>> Of the functions the only one that will use constraint_exclusion is the
>>> one that explicitly passes the date value.
>>
>> Since you haven't shown us the constraints you're talking a
* Joshua D. Drake (j...@commandprompt.com) wrote:
> On Mon, 2008-12-15 at 14:28 -0500, Tom Lane wrote:
> > "Joshua D. Drake" writes:
> > > Of the functions the only one that will use constraint_exclusion is the
> > > one that explicitly passes the date value.
> >
> > Since you haven't shown us th
On Mon, 2008-12-15 at 14:28 -0500, Tom Lane wrote:
> "Joshua D. Drake" writes:
> > Of the functions the only one that will use constraint_exclusion is the
> > one that explicitly passes the date value.
>
> Since you haven't shown us the constraints you're talking about, or the
> resulting plans,
"Joshua D. Drake" writes:
> Of the functions the only one that will use constraint_exclusion is the
> one that explicitly passes the date value.
Since you haven't shown us the constraints you're talking about, or the
resulting plans, it's difficult for anyone to guess what's going on.
Hello,
I ran into this problem recently:
https://projects.commandprompt.com/public/replicator/pastebin?show=f1288d4d8%0D
Of the functions the only one that will use constraint_exclusion is the
one that explicitly passes the date value. I kind of get why except for
the one that uses EXECUTE. As E
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