What is the problem with this query?
Hi, ALL,
draft=# IF NOT EXISTS( SELECT 1 FROM pg_class c, pg_namespace n WHERE
n.oid = c.relnamespace AND c.relname = 'abcattbl_tnam_ownr' AND
n.nspname = 'public' ) THEN CREATE INDEX "abcattbl_tnam_ownr" ON
"abcattbl"("abt_tnam" ASC, "abt_ownr" ASC);
ERROR: syntax error at or near "IF"
LINE 1: IF NOT EXISTS( SELECT 1 FROM pg_class c, pg_namespace n WHER...
^
Is "IF" operator not supported by PostgreSQL?
Thank you.
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On Sunday, July 23, 2017, Igor Korot <ikorot01@gmail.com> wrote:
Is "IF" operator not supported by PostgreSQL
IF is pl/pgsql, not SQL.
David J.
Hi, David,
On Sun, Jul 23, 2017 at 5:07 PM, David G. Johnston
<david.g.johnston@gmail.com> wrote:
On Sunday, July 23, 2017, Igor Korot <ikorot01@gmail.com> wrote:
Is "IF" operator not supported by PostgreSQL
So how do I write this properly?
Thank you.
IF is pl/pgsql, not SQL.
David J.
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## Igor Korot (ikorot01@gmail.com):
Is "IF" operator not supported by PostgreSQL
So how do I write this properly?
There is documentation for that:
https://www.postgresql.org/docs/current/static/sql-createindex.html
Regards,
Christoph
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Hi, Christoph,
On Sun, Jul 23, 2017 at 5:30 PM, Christoph Moench-Tegeder
<cmt@burggraben.net> wrote:
## Igor Korot (ikorot01@gmail.com):
Is "IF" operator not supported by PostgreSQL
So how do I write this properly?
There is documentation for that:
https://www.postgresql.org/docs/current/static/sql-createindex.html
Except that IF NOT EXIST clause is introduced in 9.5.
And if the server is <= 9.4?
I tried to use a solution from here:
https://dba.stackexchange.com/questions/35616/create-index-if-it-does-not-exist.
but apparently I fail.
Thank you.
Regards,
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On Sunday, July 23, 2017, Igor Korot <ikorot01@gmail.com> wrote:
Hi, David,
On Sun, Jul 23, 2017 at 5:07 PM, David G. Johnston
<david.g.johnston@gmail.com <javascript:;>> wrote:On Sunday, July 23, 2017, Igor Korot <ikorot01@gmail.com <javascript:;>>
wrote:
Is "IF" operator not supported by PostgreSQL
So how do I write this properly?
CREATE FUNCTION or a DO block. See docs for usage.
Since the language is pl/pgsql you can learn how to write it here.
https://www.postgresql.org/docs/9.6/static/plpgsql.html
David J.