Re: COPY enhancements

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От Pierre Frédéric Caillaud
Тема Re: COPY enhancements
Дата
Msg-id op.uz3msqm9cke6l8@soyouz
обсуждение исходный текст
Ответ на Re: COPY enhancements  (Robert Haas <robertmhaas@gmail.com>)
Ответы Re: COPY enhancements  (Robert Haas <robertmhaas@gmail.com>)
Список pgsql-hackers
> I was thinking something like:
>
> COPY tablename [ ( column [, ...] ) ] FROM { 'filename' | STDIN }
> [WITH] [option [, ...]]
>
> Where:
>
> option := ColId [Sconst] | FORCE NOT NULL (column [,...])
>
> I don't see any reasonable way to sandwhich the FORCE NOT NULL syntax
> into a keyword/value notation.
Postgres has a hstore data type which seems well suited for passing  
key/value option pairs...Why another syntax to remember, another parser to code, when almost  
everything is already there ?
Think about plpgsql code which generates some SQL COPY command string,  
then this is parsed and executed... wouldn't it be a lot simpler to just  
manipulate parameters in a hstore ?...



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