As you wish:
D3/3: db_select_int()
D3/3: SQL: SELECT cat FROM streams_coor WHERE link::text IN(SELECT
regexp_split_to_table((SELECT branch FROM links WHERE keyid='168'), E'\\.'))
D3/3: Escaped SQL: SELECT cat FROM streams_coor WHERE link::text
IN(SELECT regexp_split_to_table((SELECT branch FROM links WHERE
keyid='168'), E'\\\\.'))
D3/3: describe_table()
As we see, there is a problem with escape \ backslash
grass (I don't know gis.m or db_select_int()) adds backslash before.
In pgAdmin I must add escape character manually as in example in post
before.
In gis.m this command should look like:
link::text IN(
SELECT regexp_split_to_table((
SELECT branch FROM links WHERE keyid='168'), E'\.'))
And everythik is OK. Porblem solved.
thank you very much for your hint. It was very helpful.
Jarek
Maris Nartiss pisze:
Hello Jarek,
please re-run Your gis.m with DEBUG=3
g.gisenv set=DEBUG=3
then redraw map and look into output pane for line:
D3/3: db_select_int()
D3/3: SQL: SELECT cat FROM ...
and post result here.
Ignore other error messages, that will popup.
Maris.
2008/10/29, Jarek Jasiewicz <[EMAIL PROTECTED]>:
Hi
Well, I thing I expect too much, but for now grass has been suprising me
(positively) on cooperation GRASS - POstgreSQL
I have a query which works well in PgAdmin:
SELECT cat FROM streams_coor WHERE link::text IN(
SELECT regexp_split_to_table(
(SELECT branch FROM links WHERE keyid='168'), E'\\.'))
the branch looks like this:
"89.88.166.169.168"
and result are:
148
150
161
168
157
If I try to use this query in gis.m "use sql query" field with proper
SQL syntax"
link::text IN(
SELECT regexp_split_to_table((
SELECT branch FROM links WHERE keyid='168'), E'\\.'))
do not receive any error but also any result
so where is problem?
As far as I know GRASS simply send query to database and recive list of
cats as a result, so there could be the problem with parsing quotemarks
and escape marks in regular expresion?
regards
Jarek
_______________________________________________
grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user
_______________________________________________
grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user
