[Mapserver-users] How to delete a GIST Index in gc_ok
Eric L. Blevins
eblevins at insight.rr.com
Thu Jan 30 11:21:01 EST 2003
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Here you will find the PostGIS function information =
http://postgis.refractions.net/docs/
DropGeometryColumn(varchar, varchar, varchar)=20
Syntax: DropGeometryColumn(<db_name>, <table_name>, <column_name>). =
Remove a geometry column from a spatial table.=20
Unfourtunatly I've tried to drop a geometry column after droping the =
table and it does not work.
As far as I know once you drop the table you can not add a geometry or =
drop the geometry with the same name, unless you droped the geometry =
before droping the table.
In the past what I have done is drop the database and recreate all the =
tables when I forgot to drop the geometry before droping the table.
That will work but is a pain.
--------------------------------------------------------
Eric L. Blevins www.WiFiMaps.com
--------------------------------------------------------
----- Original Message -----=20
From: christian.schuster at rsag.ch=20
To: Mark Cave-Ayland=20
Cc: mapserver-users at lists.gis.umn.edu=20
Sent: Thursday, January 30, 2003 10:59 AM
Subject: RE: [Mapserver-users] How to delete a GIST Index in gc_ok
Hi Mark,=20
Unfortunately, I did not use the DropGeometryColumn function. I am =
also not aware of the syntax of this function because I could not find =
any information about this.=20
You wrote me to add the GeometryColumn again. This is just the part =
which is causing an error. So I am not able to add again a =
GeometryColumn wiht the previous table name.=20
Can you send me the synthay for the function DropGeometryColumn? Then =
I would try to delete it even if the table does not exist anmore.=20
Thanks=20
Christian Schuster
Rudolf Schuster AG
Postfach 277
CH - 3000 Bern 11
http://www.rsag.ch
++41 31 348 05 30=20
"Mark Cave-Ayland" <mark.cave-ayland at webbased.co.uk>=20
30.01.2003 16:22=20
To <christian.schuster at rsag.ch> =20
cc =20
Subject RE: [Mapserver-users] How to delete a GIST Index =
in gc_ok=20
=20
=20
Hi Christian,=20
=20
Did you use the DropGeometryColumnto remove the old geometry column =
from the geo table? Otherwise you need to add the old geometry column =
back into your table, then use the function DropGeometryColumnto =
properly remove it. Once this is done, you should be able to carry on =
without any duplicate key problems.=20
=20
=20
Hope this helps,=20
=20
Mark.=20
=20
---=20
Mark Cave-Ayland=20
Webbased Ltd.=20
Tamar Science Park=20
Derriford=20
Plymouth=20
PL6 8BX=20
England=20
Tel: +44 (0)1752 764445=20
Fax: +44 (0)1752 764446=20
This email and any attachments are confidential to the intended =
recipient and may also be privileged. If you are not the intended =
recipient please delete it from your system and notify the sender. You =
should not copy it or use it for any purpose nor disclose or distribute =
its contents to any other person.=20
-----Original Message-----=20
From: christian.schuster at rsag.ch[mailto:christian.schuster at rsag.ch]=20
Sent:30 January 2003 13:56=20
To: mapserver-users at lists.gis.umn.edu=20
Subject: [Mapserver-users] How to delete a GIST Index in gc_ok=20
=20
Hi list,=20
I had a table 'geo' with a geometry column of type point and also a =
GIST index. Then I deleted this table as well as the index belonging to =
it and create it again. So far okay. But as I wanted to add the geometry =
column I received the following error message. To work around this =
problem I renamed the table in to geo2 and then I could add the geometry =
column.=20
I am working on Win2000 with Cygwin, PostgreSQL-7.3.1-1 and =
PostGIS-0.7.3=20
Does anyone know how to delete the key in index gc_ok?=20
Thanks for your help.=20
myGISdb=3D# create table geo (ID int4, NAME varchar(20));=20
CREATE TABLE=20
myGISdb=3D# select addgeometrycolumn('myGISdb', 'geo', 'geom', -1, =
'POINT', 2);=20
ERROR: Cannot insert a duplicate key into unique index gc_ok=20
WARNING: Error occurred while executing PL/pgSQL function =
addgeometrycolumn=20
WARNING: Error occurred while executing PL/pgSQL function =
addgeometrycolumn=20
WARNING: line 39 at execute statement=20
WARNING: line 39 at execute statement=20
ERROR: Cannot insert a duplicate key into unique index gc_ok=20
Christian Schuster=20
Rudolf Schuster AG=20
Postfach 277=20
CH - 3000 Bern 11=20
http://www.rsag.ch=20
++41 31 348 05 30=20
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Here you will find the PostGIS function =
information=20
<A=20
href=3D"http://postgis.refractions.net/docs/">http://postgis.refractions.=
net/docs/</A></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>
<DT>
<DT>DropGeometryColumn(varchar, varchar, varchar)=20
<DD>
<P>Syntax: DropGeometryColumn(<db_name>, <table_name>,=20
<column_name>). Remove a geometry column from a spatial table.=20
</P></DD></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Unfourtunatly I've tried to drop a =
geometry column=20
after droping the table and it does not work.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>As far as I know once you drop the =
table you can=20
not add a geometry or drop the geometry with the same name, unless you =
droped=20
the geometry before droping the table.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV>
<DIV><FONT face=3DArial size=3D2>In the past what I have done is drop =
the database=20
and recreate all the tables when I forgot to drop the geometry before =
droping=20
the table.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>That will work but is a =
pain.</FONT></DIV></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial=20
size=3D2>--------------------------------------------------------<BR>Eric=
L.=20
Blevins <A=20
href=3D"http://www.WiFiMaps.com">www.WiFiMaps.com</A><BR>----------------=
----------------------------------------</FONT></DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Dchristian.schuster at rsag.ch=20
=
href=3D"mailto:christian.schuster at rsag.ch">christian.schuster at rsag.ch</A>=
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
title=3Dmark.cave-ayland at webbased.co.uk=20
href=3D"mailto:mark.cave-ayland at webbased.co.uk">Mark Cave-Ayland</A> =
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Cc:</B> <A=20
title=3Dmapserver-users at lists.gis.umn.edu=20
=
href=3D"mailto:mapserver-users at lists.gis.umn.edu">mapserver-users at lists.g=
is.umn.edu</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Thursday, January 30, =
2003 10:59=20
AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> RE: [Mapserver-users] =
How to=20
delete a GIST Index in gc_ok</DIV>
<DIV><FONT face=3DArial size=3D2></FONT><BR></DIV><BR><FONT =
face=3Dsans-serif=20
size=3D2>Hi Mark,</FONT> <BR><BR><FONT face=3Dsans-serif =
size=3D2>Unfortunately, I=20
did not use the DropGeometryColumn function. I am also not aware of =
the syntax=20
of this function because I could not find any information about =
this.</FONT>=20
<BR><FONT face=3Dsans-serif size=3D2>You wrote me to add the =
GeometryColumn again.=20
This is just the part which is causing an error. So I am not able to =
add again=20
a GeometryColumn wiht the previous table name.</FONT> <BR><BR><FONT=20
face=3Dsans-serif size=3D2>Can you send me the synthay for the =
function=20
DropGeometryColumn? Then I would try to delete it even if the table =
does not=20
exist anmore.</FONT> <BR><BR><FONT face=3Dsans-serif =
size=3D2>Thanks</FONT>=20
<BR><FONT face=3Dsans-serif size=3D2><BR>Christian =
Schuster<BR><BR>Rudolf Schuster=20
AG<BR>Postfach 277<BR>CH - 3000 Bern =
11<BR><BR>http://www.rsag.ch<BR>++41 31=20
348 05 30</FONT> <BR><BR><BR>
<TABLE width=3D"100%">
<TBODY>
<TR vAlign=3Dtop>
<TD width=3D"40%"><FONT face=3Dsans-serif size=3D1><B>"Mark =
Cave-Ayland"=20
<mark.cave-ayland at webbased.co.uk></B> </FONT>
<P><FONT face=3Dsans-serif size=3D1>30.01.2003 16:22</FONT> </P>
<TD width=3D"59%">
<TABLE width=3D"100%">
<TBODY>
<TR>
<TD>
<DIV align=3Dright><FONT face=3Dsans-serif =
size=3D1>To</FONT></DIV>
<TD vAlign=3Dtop><FONT face=3Dsans-serif=20
size=3D1><christian.schuster at rsag.ch></FONT>=20
<TR>
<TD>
<DIV align=3Dright><FONT face=3Dsans-serif =
size=3D1>cc</FONT></DIV>
<TD vAlign=3Dtop>
<TR>
<TD>
<DIV align=3Dright><FONT face=3Dsans-serif =
size=3D1>Subject</FONT></DIV>
<TD vAlign=3Dtop><FONT face=3Dsans-serif size=3D1>RE: =
[Mapserver-users]=20
How to delete a GIST Index in =
gc_ok</FONT></TR></TBODY></TABLE><BR>
<TABLE>
<TBODY>
<TR vAlign=3Dtop>
<TD>
=
<TD></TR></TBODY></TABLE><BR></TR></TBODY></TABLE><BR><BR><BR><BR><BR><FO=
NT=20
size=3D2>Hi Christian,</FONT> <BR><BR><FONT size=3D2> </FONT> =
<BR><BR><FONT=20
size=3D2>Did you use the DropGeometryColumnto remove the old geometry =
column=20
from the geo table? Otherwise you need to add the old geometry column =
back=20
into your table, then use the function DropGeometryColumnto properly =
remove=20
it. Once this is done, you should be able to carry on without any =
duplicate=20
key problems.</FONT> <BR><BR><FONT size=3D2> </FONT> =
<BR><BR><FONT=20
size=3D2> </FONT> <BR><BR><FONT size=3D2>Hope this helps,</FONT>=20
<BR><BR><FONT size=3D2> </FONT> <BR><BR><FONT =
size=3D2>Mark.</FONT>=20
<BR><BR><FONT size=3D2> </FONT> <BR><BR><FONT size=3D2>---</FONT> =
<BR><BR><FONT size=3D2>Mark Cave-Ayland</FONT> <BR><FONT =
size=3D3>Webbased=20
Ltd.</FONT> <BR><FONT size=3D3>Tamar Science Park</FONT> <BR><FONT=20
size=3D3>Derriford</FONT> <BR><FONT size=3D3>Plymouth</FONT> <BR><FONT =
size=3D3>PL6=20
8BX</FONT> <BR><FONT size=3D3>England</FONT> <BR><BR><FONT =
size=3D3>Tel: +44=20
(0)1752 764445</FONT> <BR><FONT size=3D3>Fax: +44 (0)1752 =
764446</FONT>=20
<BR><BR><BR><FONT size=3D3>This email and any attachments are =
confidential to=20
the intended recipient and may also be privileged. If you are not the =
intended=20
recipient please delete it from your system and notify the sender. You =
should=20
not copy it or use it for any purpose nor disclose or distribute its =
contents=20
to any other person.</FONT> <BR><BR><FONT size=3D2>-----Original=20
Message-----</FONT> <BR><FONT size=3D2><B>From:</B>=20
christian.schuster at rsag.ch</FONT><FONT size=3D3>[mailto:</FONT><FONT=20
size=3D2>christian.schuster at rsag.ch] </FONT><BR><FONT=20
size=3D2><B>Sent</B></FONT><FONT size=3D3><B>:</B></FONT><FONT =
size=3D2>30=20
Jan</FONT><FONT size=3D3>uary 2003 13:56</FONT> <BR><FONT =
size=3D3><B>To:</B>=20
</FONT><FONT size=3D2>mapserver-users at lists.gis.umn.edu</FONT> =
<BR><FONT=20
size=3D3><B>Subject:</B> [Mapserver-users] How to delete a GIST Index =
in=20
gc_ok</FONT> <BR><BR><FONT size=3D3> </FONT> <BR><BR><BR><FONT =
size=3D2>Hi=20
list,</FONT><FONT size=3D3> </FONT><BR><BR><FONT size=3D2>I had a =
table=20
<B>'geo'</B> with a geometry column of type <B>point</B> and also a =
GIST=20
index. Then I deleted this table as well as the index belonging to it =
and=20
create it again. So far okay. But as I wanted to add the geometry =
column I=20
received the following error message. To work around this problem I =
renamed=20
the table in to geo2 and then I could add the geometry =
column.</FONT><FONT=20
size=3D3> </FONT><BR><BR><FONT size=3D2>I am working on Win2000 with =
Cygwin,=20
PostgreSQL-7.3.1-1 and PostGIS-0.7.3</FONT><FONT size=3D3> =
</FONT><BR><BR><FONT=20
size=3D2>Does anyone know how to delete the key in index =
gc_ok?</FONT><FONT=20
size=3D3> </FONT><BR><BR><FONT size=3D2>Thanks for your =
help.</FONT><FONT size=3D3>=20
</FONT><BR><BR><BR><FONT size=3D2><B>myGISdb=3D# create table geo (ID =
int4, NAME=20
varchar(20));</B></FONT><FONT size=3D3> </FONT><BR><FONT =
size=3D2><B>CREATE=20
TABLE</B></FONT><FONT size=3D3> </FONT><BR><FONT =
size=3D2><B>myGISdb=3D# select=20
addgeometrycolumn('myGISdb', 'geo', 'geom', -1, 'POINT', =
2);</B></FONT><FONT=20
size=3D3> </FONT><BR><FONT size=3D2><B>ERROR: Cannot insert a =
duplicate key=20
into unique index gc_ok</B></FONT><FONT size=3D3> </FONT><BR><FONT=20
size=3D2><B>WARNING: Error occurred while executing PL/pgSQL =
function=20
addgeometrycolumn</B></FONT><FONT size=3D3> </FONT><BR><FONT =
size=3D2><B>WARNING:=20
Error occurred while executing PL/pgSQL function=20
addgeometrycolumn</B></FONT><FONT size=3D3> </FONT><BR><FONT =
size=3D2><B>WARNING:=20
line 39 at execute statement</B></FONT><FONT size=3D3> =
</FONT><BR><FONT=20
size=3D2><B>WARNING: line 39 at execute =
statement</B></FONT><FONT size=3D3>=20
</FONT><BR><FONT size=3D2><B>ERROR: Cannot insert a duplicate =
key into=20
unique index gc_ok</B></FONT><FONT size=3D3> </FONT><BR><BR><FONT=20
size=3D2>Christian Schuster</FONT> <BR><BR><FONT size=3D2>Rudolf =
Schuster=20
AG</FONT> <BR><FONT size=3D2>Postfach 277</FONT> <BR><FONT size=3D2>CH =
- 3000 Bern=20
11</FONT> <BR><BR><FONT size=3D2>http://www.rsag.ch</FONT> <BR><FONT =
size=3D2>++41=20
31 348 05 30</FONT> <BR></BLOCKQUOTE></BODY></HTML>
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