Re: Bringing PostgreSQL torwards the standard regarding
От | Andrew Dunstan |
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Тема | Re: Bringing PostgreSQL torwards the standard regarding |
Дата | |
Msg-id | 408BE61B.7020308@dunslane.net обсуждение исходный текст |
Ответ на | Bringing PostgreSQL torwards the standard regarding case folding (Shachar Shemesh <psql@shemesh.biz>) |
Ответы |
Re: Bringing PostgreSQL torwards the standard regarding
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Список | pgsql-hackers |
Shachar Shemesh wrote: > I'm opening a new thread, as the previous one was too nested, and > contained too much emotions. > > I'll start by my understanding of a summary of the thread so far. The > solution we are seeking would have to satisfy the following conditions: > 1. Setting should be on a per-database level. A per-server option is > not good enough, and a per-session option is too difficult to > implement, with no apparent justifiable return. I am not convinced on this point. Why is per-server not good enough? The obvious place to make these changes seems to me to be during or immediatly after the bootstrap phase of initdb. It would avoid a host of later troubles. > > 2. Old applications already working with PG's lowercase folding should > have an option to continue working unmodified for the foreseeable future. > > Solutions offered so far, and their status: > 1. Tri-state. Folder upper, if failes, fold lower, if succeeds, warn. > 2. Dual state. Fold lower or upper. Break if client is broken. > 3. Create a database conversion tool to change existing case. I don't think we should rush at this. All of these solutions are based on the existing structures. I have started thinking about a solution that would involve keeping two versions of catalog names: a canonical name and a "name as supplied at creation". There would be heaps of wrinkles, but it might get us where we want to be. But I have not had time to sort it out in my head yet, let alone make any experiments. Let's keep getting more ideas. cheers andrew
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