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Re: Export to XML

From: "Dean Gibson (DB Administrator)" <postgresql4(at)ultimeth(dot)com>
To: pgsql-sql(at)postgresql(dot)org
Subject: Re: Export to XML
Date: 2005-11-18 21:16:21
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-sql
On 2005-11-11 10:26, Warren Murray wrote:
> What is the process to export a PostgreSQL table to XML?  How is it done?
> Thanks!

Two ways using PSQL:

1. Select HTML output ("\H" command) and then do a very minor amount of 
post processing (details left to the reader).

2. Select "expanded" output ("\x" command), and then use SED to 
post-format the output into XML:

sed -r 's:^-\[ RECORD (.*) \]-+$:</row>\n<row number="\1">:;s:([^ ]*) 
+\| (.*):  <\1>\2</\1>:;s:^$:</row>:;1s:</row>\n::'

There's probably a cleaner way with AWK, but the above is simple enough 
(your eMail reader may break the above into separate lines at the 
positions where I had a space).  The last two "s" commands just handle 
the first/last line cases.

The only thing the above does not handle is NULL values as distinct from 
zero-length strings.

-- Dean

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