Bug in GROUP BY for INSERT

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От Pushkar Piggott
Тема Bug in GROUP BY for INSERT
Дата
Msg-id 199808262334.JAA07554@guava.citr.com.au
обсуждение исходный текст
Список pgsql-sql
The following is surely not the intended operation:

<pkp@cooloola> createdb pkptest
<pkp@cooloola> psql pkptest
Welcome to the POSTGRESQL interactive sql monitor:
  Please read the file COPYRIGHT for copyright terms of POSTGRESQL

   type \? for help on slash commands
   type \q to quit
   type \g or terminate with semicolon to execute query
 You are currently connected to the database: pkptest

pkptest=> CREATE TABLE a_foo (a_Index int4,
pkptest->                     bar int4);
CREATE
pkptest=> INSERT INTO a_foo
pkptest-> VALUES (1, 1);
INSERT 252074 1
pkptest=> INSERT INTO a_foo
pkptest-> VALUES (2, 1);
INSERT 252075 1
pkptest=> CREATE TABLE b_foo (b_Index int4,
pkptest->                     count int4);
CREATE
pkptest=> INSERT INTO b_foo
pkptest->         SELECT a_Index, COUNT(*)
pkptest->         FROM a_foo
pkptest->         GROUP BY a_Index;
ERROR:  The field being grouped by must appear in the target list
pkptest=> INSERT INTO b_foo
pkptest->         SELECT a_Index, COUNT(*)
pkptest->         FROM a_foo
pkptest->         GROUP BY b_Index;
INSERT 0 2

cheers
Pushkar
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