Full-text Indexing and Primary Keys

Folks,

1. Can anyone explain to me what "full-text indexing" is, and why we do
or don't need it for Postgres? The marketing types keep asking me about
it ("buzzword o' the day") and I don't have an answer for them.

2. I propose that future versions of PostgreSQL require a primary key at
table creation. Frankly, I'm a little mystified as to why this was not
done already, but it's not too late to correct ...

-Josh

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