Re: record identical operator
От | Hannu Krosing |
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Тема | Re: record identical operator |
Дата | |
Msg-id | 52381C0C.6080404@2ndQuadrant.com обсуждение исходный текст |
Ответ на | Re: record identical operator (Kevin Grittner <kgrittn@ymail.com>) |
Ответы |
Re: record identical operator
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Список | pgsql-hackers |
On 09/16/2013 04:01 PM, Kevin Grittner wrote: > Hannu Krosing <hannu@2ndQuadrant.com> wrote: > >> Lots of people were bitten when (undocumented) hash >> functions were changed thus breaking hash-based partitioning. > Nobody can be affected by the new operators in this patch unless > they choose to use them to compare two records. They don't work > for any other type and they don't come into play unless you > specifically request them. > Maybe the binary equality operator should be named ==== for "really deeply equal" to distinguish it from === which would be merely NOT DISTINCT FROM we could even go one step further and define ===== to mean "the same". ? This could fit better in conceptual sequence of operator 'strength' -- Hannu Krosing PostgreSQL Consultant Performance, Scalability and High Availability 2ndQuadrant Nordic OÜ
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