| From: | Kevin Grittner <kgrittn(at)ymail(dot)com> |
|---|---|
| To: | Kevin Grittner <kgrittn(at)ymail(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net> |
| Cc: | Merlin Moncure <mmoncure(at)gmail(dot)com>, Andres Freund <andres(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Hannu Krosing <hannu(at)2ndquadrant(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: record identical operator |
| Date: | 2013-09-18 18:40:49 |
| Message-ID: | 1379529649.54571.YahooMailNeo@web162901.mail.bf1.yahoo.com |
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| Lists: | pgsql-hackers |
Kevin Grittner <kgrittn(at)ymail(dot)com> wrote:
>> If an update happens with a conditional of:
>>
>> where col1 = 'Abc'
>>
>> When col1 is 'ABC' using citext, should we still issue the
>> update?
>
> Absolutely not, because the update was requested in the case that
> the equality test was true.
Sorry, as if this thread were not long enough, I misread that and
gave the wrong answer. Yes, the equal operator was used and the
equal operator for two citext values says those are equal, so the
row *should* be updated.
--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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