Re: [GENERAL] Rounding Float Array
>> Sure:
>>
>> (depesz@[local]:5960) 12:15:46 [depesz]
>> $ select geoloc::numeric(8,4)[] from alex;
>> geoloc
>> ---
>> {5.3443,100.2946}
>
> Nice!
Indeed :)
Bye,
Chris.
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Re: [GENERAL] Rounding Float Array
hubert depesz lubaczewski wrote:
> > Is there an easy way to round all values to 4 decimals.
>
> Sure:
>
> (depesz@[local]:5960) 12:15:46 [depesz]
> $ select geoloc::numeric(8,4)[] from alex;
> geoloc
> ---
> {5.3443,100.2946}
Nice!
Andreas
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unintentional side effect. (Linus Torvalds)
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Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°
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Re: [GENERAL] Rounding Float Array
On Mon, Sep 21, 2015 at 11:55:23AM +0200, Alex Magnum wrote:
> Hello,
>
> I have a float array holding geo location information.
>
> geoloc
> ---
> {5.3443133704554,100.29457569122}
> {5.3885574294704,100.29601335526}
> {3.1654978750403,101.60915851593}
> {5.3766154817748,100.31472444534}
> {3.1545014704258,101.70036971569}
> (5 rows)
> Is there an easy way to round all values to 4 decimals.
Sure:
$ select geoloc from alex;
geoloc
---
{5.3443133704554,100.29457569122}
{5.3885574294704,100.29601335526}
{3.1654978750403,101.60915851593}
{5.3766154817748,100.31472444534}
{3.1545014704258,101.70036971569}
(5 rows)
(depesz@[local]:5960) 12:15:46 [depesz]
$ select geoloc::numeric(8,4)[] from alex;
geoloc
---
{5.3443,100.2946}
{5.3886,100.2960}
{3.1655,101.6092}
{5.3766,100.3147}
{3.1545,101.7004}
(5 rows)
depesz
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Re: [GENERAL] Rounding Float Array
Alex Magnum wrote:
> Hello,
>
> I have a float array holding geo location information.
>
> geoloc
> ---
> {5.3443133704554,100.29457569122}
> {5.3885574294704,100.29601335526}
> {3.1654978750403,101.60915851593}
> {5.3766154817748,100.31472444534}
> {3.1545014704258,101.70036971569}
> (5 rows)
>
> Is there an easy way to round all values to 4 decimals.
sure:
test=*# select * from alex ;
geoloc
---
{5.3443133704554,100.29457569122}
{5.3885574294704,100.29601335526}
{3.1654978750403,101.60915851593}
{5.3766154817748,100.31472444534}
(4 rows)
Time: 0,245 ms
test=*# update alex set geoloc = array[round(geoloc[1]::numeric,4),
round(geoloc[2]::numeric,4)];
UPDATE 4
Time: 0,454 ms
test=*# select * from alex ;
geoloc
---
{5.3443,100.2946}
{5.3886,100.296}
{3.1655,101.6092}
{5.3766,100.3147}
(4 rows)
Andreas
--
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unintentional side effect. (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly." (unknown)
Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°
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Re: [GENERAL] Rounding Float Array
On 21/09/15 11:55, Alex Magnum wrote:
> Hello,
>
> I have a float array holding geo location information.
>
> geoloc
> ---
> {5.3443133704554,100.29457569122}
> {5.3885574294704,100.29601335526}
> {3.1654978750403,101.60915851593}
> {5.3766154817748,100.31472444534}
> {3.1545014704258,101.70036971569}
> (5 rows)
>
> Is there an easy way to round all values to 4 decimals.
>
> I can round the individual values and return them seperately but I need to
> return them as an array.
>
> lat| long
> -+---
> 5.34431 | 100.29458
> 5.38856 | 100.29601
> 3.16550 | 101.60916
> 5.37662 | 100.31472
> 3.15450 | 101.70037
> (5 rows)
>
> Any suggestion is highly appreciated.
This might work for you.
Bye,
Chris.
chris=# select * from geoloc;
geoloc
---
{5.3443133704554,100.29457569122}
{5.3885574294704,100.29601335526}
{3.1654978750403,101.60915851593}
{5.3766154817748,100.31472444534}
{3.1545014704258,101.70036971569}
(5 rows)
chris=# select (select array_agg(to_char(x, '999.')::float) from
unnest(geoloc) as x) from geoloc;;
array_agg
---
{5.3443,100.2946}
{5.3886,100.296}
{3.1655,101.6092}
{5.3766,100.3147}
{3.1545,101.7004}
(5 rows)
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[GENERAL] Rounding Float Array
Hello,
I have a float array holding geo location information.
geoloc
---
{5.3443133704554,100.29457569122}
{5.3885574294704,100.29601335526}
{3.1654978750403,101.60915851593}
{5.3766154817748,100.31472444534}
{3.1545014704258,101.70036971569}
(5 rows)
Is there an easy way to round all values to 4 decimals.
I can round the individual values and return them seperately but I need to
return them as an array.
lat| long
-+---
5.34431 | 100.29458
5.38856 | 100.29601
3.16550 | 101.60916
5.37662 | 100.31472
3.15450 | 101.70037
(5 rows)
Any suggestion is highly appreciated.
Thanks
Alex
