A more general way would be to have a function which takes a pdf in and returns the text. Mark it immutable.
Then you can index the output of converting that text to a tsvector.
You may want to pull everything into a tsvector column for ease of review, but functional indexes also make that less important
On Sat, Feb 20, 2016 at 1:10 AM, Stephen Davies <sdavies@sdc.com.au> wrote:
On 20/02/16 00:24, Bruce Momjian wrote:
On Fri, Feb 19, 2016 at 02:49:16PM +0100, s d wrote:
On 19 February 2016 at 14:19, Bruce Momjian <bruce@momjian.us> wrote: > Ah, no. That's not possible > > > ...not possible, Yet. > > PostgreSQL grows by adding the features people need and its changing rapidly.
I wonder if PLPerl could be used to extract the words from a PDF document and create a tsvector column from it.
I don't know about PLPerl(I'm pretty sure it could be used for this purpose, though.). On the other hand I've written code for this in Python which should be easy to adapt for PLPython, if necessary.
Right, so you would write a PL/Perl or PL/Python trigger function that would populate the tsvector column on every INSERT or UPDATE.
FWIW, I just use pdftotext in my CGI.
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