Re: truncate data before importing

I was not able to find any details about "\S+\s+ ", can u explain them?
Also thanks a lot, this worked perfectly!

On Wed, Nov 18, 2015 at 4:36 PM, Hans Ginzel <hans(at)matfyz(dot)cz> wrote:

> On Wed, Nov 18, 2015 at 01:49:35PM +0100, Shmagi Kavtaradze wrote:
>
>> I am importing sentences from txt file. They look like:
>> "0,170 A recent statistical analysis by David
>> Barton graphically illustrates how America has
>> plummeted from righteous living , prosperity
>> and success in the last quarter century
>> .
>> Each Sentence starts with coordinates and each word is delimited with
>> tab.
>> I want to import data to tables without coordinates, just text and if
>> possible to convert tab delimited space with just 'space', not to have
>> such a gap between words. Any solutions how to do it? maybe with shell
>> script?
>>
>
> You can use the 'PROGRAM' in COPY syntax
> http://www.postgresql.org/docs/current/static/sql-copy.html
>
> -- DROP TABLE IF EXISTS Sentence;
> CREATE TABLE IF NOT EXISTS Sentence (s text);
> COPY Sentence
> FROM PROGRAM 'sed -re ''s/\t/ /g; s/^\S+\s+//'' file.txt'
> WITH (FORMAT text, NULL '');
>
> Take care of escape sequences – backslashes in the file.
>
> If the file is on the client side see the \copy command of psql client
> instaed.
>
> http://www.postgresql.org/docs/9.4/static/app-psql.html#APP-PSQL-META-COMMANDS-COPY
>
> https://www.gnu.org/software/sed/manual/sed.html
>
> H.
>
>