Fix text delimiter
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Which OS are you using ?@abhi1nandy2 > Which OS are you using ?

PRETTY_NAME="Debian GNU/Linux 9 (stretch)"
NAME="Debian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
VERSION_CODENAME=stretch
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/" Do you mind sharing the data you used (or part of it), so I can try to reproduce ?
Or at least some info about the text file you're using ? (size, n of lines, encoding) Lot of data, difficult to share. There are 46 shards, each having about 256000 lines. using `file` command gives this - `ASCII text, with very long lines`. Ok I see, no problem :) 
I'll see what I can do

Could you just test with one single dummy text file with a few lines to see if you're having the issue ?
Also which version of `datasets` do you have ?
I changed the delimiter in the `text` dataset script.
It should fix the `pyarrow.lib.ArrowInvalid: CSV parse error` from #622 

I changed the delimiter to an unused ascii character that is not present in text files : `\b`
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