Re: Off topic? - Solution for a delimiter problem
От | Andrew Gould |
---|---|
Тема | Re: Off topic? - Solution for a delimiter problem |
Дата | |
Msg-id | 20001220235812.9341.qmail@web112.yahoomail.com обсуждение исходный текст |
Ответ на | Off topic? - Solution for a delimiter problem (Andrew Gould <andrewgould@yahoo.com>) |
Список | pgsql-general |
If space was used as the delimiter without accounting for the quotation marks, text fields might be broken apart whenever a space occurred. For example, the street address "123 Sesame Street" might be split into 3 fields containing '"123', 'Sesame' and 'Street"' respectively. In the past, I imported the file into MySQL, then exported the data into a tab delimited text file for importing into PostgreSQL. The Python script saves many steps; so I was offering it up for use and improvement by others. I didn't know if I should post the script to the mailing list or send it directly to people who are interested. (It's only 1k.) Andrew Gould --- "Poul L. Christiansen" <poulc@cs.auc.dk> wrote: > Maybe you can specify the delimiter to be space. > > radius=# \h copy > Command: COPY > Description: Copies data between files and tables > Syntax: > COPY [ BINARY ] table [ WITH OIDS ] > FROM { 'filename' | stdin } > [ [USING] DELIMITERS 'delimiter' ] > [ WITH NULL AS 'null string' ] > COPY [ BINARY ] table [ WITH OIDS ] > TO { 'filename' | stdout } > [ [USING] DELIMITERS 'delimiter' ] > [ WITH NULL AS 'null string' ] > > That would probably be COPY table FROM filename > USING DELIMITERS ' '; > > HTH, > Poul L. Christiansen > > Andrew Gould wrote: > > > I receive space delimited files that have spaces > > within double quoted text fields. > > > > Since PostgreSQL's COPY doesn't deal with multiple > > delimiters, I've written a crude Python script to > > convert the files to a tab delimited format > without > > the double quotes and without disturbing the > spaces > > within text fields. I'm sure someone could make > it > > more efficient. (Probably by rewriting it in > Perl.) > > > > Does anyone else need the script? Is the script > > something I can/should post? > > > > Andrew Gould __________________________________________________ Do You Yahoo!? Yahoo! Shopping - Thousands of Stores. Millions of Products. http://shopping.yahoo.com/
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