tsearch dictionaries and stop words

Hi all,

The docs for tsearch don't seem to make it very clear about its use of
dictionaries. If anyone could answer the following questions I'd be very
grateful!

1) Do I need to specify a locale name? And if so what should I set it
to?

2) What exactly is mean't to be in the file that contain the endings of
words?

3) Is it better to have as big a dictionary as possible? Does this make
the text index more efficient?

TIA!


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