Обсуждение: BUG #5884: i cant select entire array values

The following bug has been logged online:

Bug reference:      5884
Logged by:          yashar ebrahimpoor
Email address:      ebrahimpoor.yashar@gmail.com
PostgreSQL version: 8.4.7
Operating system:   centos 5.5
Description:        i cant select entire array values
Details:

CREATE TABLE "flight"."FlightList" (
  "FlighID" INTEGER DEFAULT nextval('flight.flist_flightid_seq'::regclass)
NOT NULL,
  "FlightDate" DATE[] NOT NULL,
  "FlightNum" VARCHAR[] NOT NULL,
  "FlightTime" TIME WITHOUT TIME ZONE[] NOT NULL,
  "FlightDuration" VARCHAR[] NOT NULL,
  CONSTRAINT "FlightList_pkey" PRIMARY KEY("FlighID")
) WITH OIDS;

after create this table, insert some data
INSERT INTO
"flight"."FlightList"("FlightDate","FlightNum","FlightTime","FlightDuration"
)
VALUES(ARRAY["date"('2011-10-10'),"date"('2011-10-15')],
ARRAY['230','231'],
ARRAY["time"('21:00:00'),"time"('16:25:00')],
ARRAY['2:30','2:35']);

now i want to execute this query:
select "FlightNum[0]" FROM flight."FlightList";

return this error:

ERROR:  column "FlightNum[0]" does not exist
LINE 1: select "FlightNum[0]" FROM flight."FlightList"

please help to resolve this problem.
thank you so much.

Hello

2011/2/14 yashar ebrahimpoor <ebrahimpoor.yashar@gmail.com>:
>
> The following bug has been logged online:
>
> Bug reference: =C2=A0 =C2=A0 =C2=A05884
> Logged by: =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0yashar ebrahimpoor
> Email address: =C2=A0 =C2=A0 =C2=A0ebrahimpoor.yashar@gmail.com
> PostgreSQL version: 8.4.7
> Operating system: =C2=A0 centos 5.5
> Description: =C2=A0 =C2=A0 =C2=A0 =C2=A0i cant select entire array values
> Details:
>
> CREATE TABLE "flight"."FlightList" (
> =C2=A0"FlighID" INTEGER DEFAULT nextval('flight.flist_flightid_seq'::regc=
lass)
> NOT NULL,
> =C2=A0"FlightDate" DATE[] NOT NULL,
> =C2=A0"FlightNum" VARCHAR[] NOT NULL,
> =C2=A0"FlightTime" TIME WITHOUT TIME ZONE[] NOT NULL,
> =C2=A0"FlightDuration" VARCHAR[] NOT NULL,
> =C2=A0CONSTRAINT "FlightList_pkey" PRIMARY KEY("FlighID")
> ) WITH OIDS;
>
> after create this table, insert some data
> INSERT INTO
> "flight"."FlightList"("FlightDate","FlightNum","FlightTime","FlightDurati=
on"
> )
> VALUES(ARRAY["date"('2011-10-10'),"date"('2011-10-15')],
> ARRAY['230','231'],
> ARRAY["time"('21:00:00'),"time"('16:25:00')],
> ARRAY['2:30','2:35']);
>
> now i want to execute this query:
> select "FlightNum[0]" FROM flight."FlightList";
>
> return this error:
>
> ERROR: =C2=A0column "FlightNum[0]" does not exist
> LINE 1: select "FlightNum[0]" FROM flight."FlightList"
>

please, try to SELECT "FlightNum"[0] FROM FlightList

Pavel Stehule

p.s. Using a case sensitive identifiers isn't good idea






> please help to resolve this problem.
> thank you so much.
>
> --
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>

Pavel Stehule <pavel.stehule@gmail.com> wrote:

> p.s. Using a case sensitive identifiers isn't good idea

Is there any reason for that assertion besides the need to
consistently quote them?

-Kevin

2011/2/14 Kevin Grittner <Kevin.Grittner@wicourts.gov>:
> Pavel Stehule <pavel.stehule@gmail.com> wrote:
>
>> p.s. Using a case sensitive identifiers isn't good idea
>
> Is there any reason for that assertion besides the need to
> consistently quote them?
>

readability - and when you are started quoting, then you have to use
quotes everywhere.

Readability is subjective argument, I know.

Pavel




> -Kevin
>