<p>Hi Ric.</p>
<p>I pretty much never work with vectors any more, so I can't verify this without doing a lot of work. I do believe hat GRASS doesn't necessarily need a cat column to get by, though - I'm pretty sure it takes the FID column as is from shapefiles, for example. Which would lead me to think it doesn't require a primary key. This also makes sense because GRASS vectors are stored independently of an attribute table in the traditional sense of the word, if I've understood things currectly. Why don't you try it out? I'd also be interested to see if GRASS updates the cat column.</p>
<p>Best,<br>
<u>Daniel</u></p>
<p>--<br>
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<div class="gmail_quote">On Apr 23, 2012 8:16 PM, "Rich Shepard" <<a href="mailto:rshepard@appl-ecosys.com">rshepard@appl-ecosys.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I have a few dozen points to add to a vector map and can do this most<br>
easily using the SQL 'INSERT INTO ...' syntax directly on the postgres<br>
table. Does GRASS automagically update the cat column, or do I do this as<br>
part of the insert statement?<br>
<br>
Rich<br>
<br>
<br>
<br>
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