Re: record identical operator - Review
От | Bruce Momjian |
---|---|
Тема | Re: record identical operator - Review |
Дата | |
Msg-id | 20131007002051.GC22450@momjian.us обсуждение исходный текст |
Ответ на | Re: record identical operator - Review (Kevin Grittner <kgrittn@ymail.com>) |
Список | pgsql-hackers |
On Thu, Oct 3, 2013 at 10:46:05AM -0700, Kevin Grittner wrote: > > opcname > > --------------------- > > varchar_ops > > kd_point_ops > > cidr_ops > > text_pattern_ops > > varchar_pattern_ops > > bpchar_pattern_ops > > (6 rows) > > > > Do these all have operators defined too? > > Every operator class is associated with operators. For example, > while text_pattern_ops uses the same = and <> operators as the > default text opclass (because that already uses memcmp), it adds > ~>~, ~>=~, ~<~, and ~<=~ operators which also use memcmp (ignoring > character encoding and collation). OK, my questions have been answered and I am no longer concerned about this patch causing "equality" confusion for our users. -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + It's impossible for everything to be true. +
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