[GRASS-user] Error while executing: 'CREATE TEMPORARY TABLE...

Jamille_Haarloo · February 15, 2019, 11:27pm

Dear Grass community,

I don’t have any success with removal of columns from a vector file I am working with, while adding columns has not been a problem.

output:

v.db.dropcolumn map=nvTrainingset_test2019_clean@LUP1 columns=code
ERROR: Error while executing: ‘CREATE TEMPORARY TABLE nvTrainingset_test2019_clean_backup(cat INTEGER, compact_circle DOUBLE PRECISION, DV2_mean DOUBLE PRECISION, DV2_stddev DOUBLE PRECISION, DV2_variance DOUBLE PRECISION, DV2_coeff_var DOUBLE PRECISION, DV2_first_quart DOUBLE PRECISION, DV2_median DOUBLE PRECISION, DV2_third_quart DOUBLE PRECISION, DV2_perc_90 DOUBLE PRECISION, DV4_mean DOUBLE PRECISION, DV4_stddev DOUBLE PRECISION, DV4_variance DOUBLE PRECISION, DV4_coeff_var DOUBLE PRECISION, DV4_first_quart DOUBLE PRECISION, DV4_median DOUBLE PRECISION, DV4_third_quart DOUBLE PRECISION, DV4_perc_90 DOUBLE PRECISION, IDM2_mean DOUBLE PRECISION, IDM2_stddev DOUBLE PRECISION, IDM2_variance DOUBLE PRECISION, IDM2_coeff_var DOUBLE PRECISION, IDM2_first_quart DOUBLE PRECISION, IDM2_median DOUBLE PRECISION, IDM2_third_quart DOUBLE PRECISION, IDM2_perc_90 DOUBLE PRECISION, IDM4_mean DOUBLE PRECISION, IDM4_stddev DOUBLE PRECISION, IDM4_variance DOUBLE PRECISION, IDM4_coeff_var DOUBLE PRECISION, IDM4_first_quart DOUBLE PRECISION, IDM4_median DOUBLE PRECISION, IDM4_third_quart DOUBLE PRECISION, IDM4_perc_90 DOUBLE PRECISION, W2_mean DOUBLE PRECISION, W2_stddev DOUBLE PRECISION, W2_variance DOUBLE PRECISION, W2_coeff_var DOUBLE PRECISION, W2_first_quart DOUBLE PRECISION, W2_median DOUBLE PRECISION, W2_third_quart DOUBLE PRECISION, W2_perc_90 DOUBLE PRECISION, W4_mean DOUBLE PRECISION, W4_stddev DOUBLE PRECISION, W4_variance DOUBLE PRECISION, W4_coeff_var DOUBLE PRECISION, W4_first_quart DOUBLE PRECISION, W4_median DOUBLE PRECISION, W4_third_quart DOUBLE PRECISION, W4_perc_90 DOUBLE PRECISION, neighbors_count DOUBLE PRECISION, compact_circle_nbrmean DOUBLE PRECISION, compact_circle_nbrstddev DOUBLE PRECISION, DV2_mean_nbrmean DOUBLE PRECISION, DV2_mean_nbrstddev DOUBLE PRECISION, DV2_stddev_nbrmean DOUBLE PRECISION, DV2_stddev_nbrstddev DOUBLE PRECISION, DV2_variance_nbrmean DOUBLE PRECISION, DV2_variance_nbrstddev DOUBLE PRECISION, DV2_coeff_var_nbrmean DOUBLE PRECISION, DV2_coeff_var_nbrstddev DOUBLE PRECISION, DV2_first_quart_nbrmean DOUBLE PRECISION, DV2_first_quart_nbrstddev DOUBLE PRECISION, DV2_median_nbrmean DOUBLE PRECISION, DV2_median_nbrstddev DOUBLE PRECISION, DV2_third_quart_nbrmean DOUBLE PRECISION, DV2_third_quart_nbrstddev DOUBLE PRECISION, DV2_perc_90_nbrmean DOUBLE PRECISION, DV2_perc_90_nbrstddev DOUBLE PRECISION, DV4_mean_nbrmean DOUBLE PRECISION, DV4_mean_nbrstddev DOUBLE PRECISION, DV4_stddev_nbrmean DOUBLE PRECISION, DV4_stddev_nbrstddev DOUBLE PRECISION, DV4_variance_nbrmean DOUBLE PRECISION, DV4_variance_nbrstddev DOUBLE PRECISION, DV4_coeff_var_nbrmean DOUBLE PRECISION, DV4_coeff_var_nbrstddev DOUBLE PRECISION, DV4_first_quart_nbrmean DOUBLE PRECISION, DV4_first_quart_nbrstddev DOUBLE PRECISION, DV4_median_nbrmean DOUBLE PRECISION, DV4_median_nbrstddev DOUBLE PRECISION, DV4_third_quart_nbrmean DOUBLE PRECISION, DV4_third_quart_nbrstddev DOUBLE PRECISION, DV4_perc_90_nbrmean DOUBLE PRECISION, DV4_perc_90_nbrstddev DOUBLE PRECISION, IDM2_mean_nbrmean DOUBLE PRECISION, IDM2_mean_nbrstddev DOUBLE PRECISION, IDM2_stddev_nbrmean DOUBLE PRECISION, IDM2_stddev_nbrstddev DOUBLE PRECISION, IDM2_variance_nbrmean DOUBLE PRECISION, IDM2_variance_nbrstddev DOUBLE PRECISION, IDM2_coeff_var_nbrmean DOUBLE PRECISION, IDM2_coeff_var_nbrstddev DOUBLE PRECISION, IDM2_first_quart_nbrmean DOUBLE PRECISION, IDM2_first_quart_nbrstddev DOUBLE PRECISION, IDM2_median_nbrmean DOUBLE PRECISION, IDM2_median_nbrstddev DOUBLE PRECISION, IDM2_third_quart_nbrmean DOUBLE PRECISION, IDM2_third_quart_nbrstddev DOUBLE PRECISION, IDM2_perc_90_nbrmean DOUBLE PRECISION, IDM2_perc_90_nbrstddev DOUBLE PRECISION, IDM4_mean_nbrmean DOUBLE PRECISION, IDM4_mean_nbrstddev DOUBLE PRECISION, IDM4_stddev_nbrmean DOUBLE PRECISION, IDM4_stddev_nbrstddev DOUBLE PRECISION, IDM4_variance_nbrmean DOUBLE PRECISION, IDM4_variance_nbrstddev DOUBLE PRECISION, IDM4_coeff_var_nbrmean DOUBLE PRECISION, IDM4_coeff_var_nbrstddev DOUBLE PRECISION, IDM4_first_quart_nbrmean DOUBLE PRECISION, IDM4_first_quart_nbrstddev DOUBLE PRECISION, IDM4_median_n
brmean DOUBLE PRECISION, IDM4_median_nbrstddev DOUBLE’
ERROR: Deleting column failed

Any suggestions?

neteler · March 7, 2019, 5:34pm

Hi,

On Sat, Feb 16, 2019 at 12:28 AM Jamille Haarloo <j.r.haarloo@gmail.com> wrote:

Dear Grass community,

I don't have any success with removal of columns from a vector file I am working with, while adding columns has not been a problem.

output:
v.db.dropcolumn map=nvTrainingset_test2019_clean@LUP1 columns=code
ERROR: Error while executing: 'CREATE TEMPORARY TABLE nvTrainingset_test2019_clean_backup(cat INTEGER, compact_circle DOUBLE PRECISION, DV2_mean DOUBLE PRECISION, DV2_stddev DOUBLE PRECISION, DV2_variance DOUBLE PRECISION, DV2_coeff_var DOUBLE PRECISION, DV2_first_quart DOUBLE PRECISION, DV2_median DOUBLE PRECISION, DV2_third_quart DOUBLE PRECISION, DV2_perc_90 DOUBLE PRECISION, DV4_mean DOUBLE PRECISION, DV4_stddev DOUBLE PRECISION, DV4_variance DOUBLE PRECISION, DV4_coeff_var DOUBLE PRECISION, DV4_first_quart DOUBLE PRECISION, DV4_median DOUBLE PRECISION, DV4_third_quart DOUBLE PRECISION, DV4_perc_90 DOUBLE PRECISION, IDM2_mean DOUBLE PRECISION, IDM2_stddev DOUBLE PRECISION, IDM2_variance DOUBLE PRECISION, IDM2_coeff_var DOUBLE PRECISION, IDM2_first_quart DOUBLE PRECISION, IDM2_median DOUBLE PRECISION, IDM2_third_quart DOUBLE PRECISION, IDM2_perc_90 DOUBLE PRECISION, IDM4_mean DOUBLE PRECISION, IDM4_stddev DOUBLE PRECISION, IDM4_variance DOUBLE PRECISION, IDM4_coeff_var DOUBLE PRECISION, IDM4_first_quart DOUBLE PRECISION, IDM4_median DOUBLE PRECISION, IDM4_third_quart DOUBLE PRECISION, IDM4_perc_90 DOUBLE PRECISION, W2_mean DOUBLE PRECISION, W2_stddev DOUBLE PRECISION, W2_variance DOUBLE PRECISION, W2_coeff_var DOUBLE PRECISION, W2_first_quart DOUBLE PRECISION, W2_median DOUBLE PRECISION, W2_third_quart DOUBLE PRECISION, W2_perc_90 DOUBLE PRECISION, W4_mean DOUBLE PRECISION, W4_stddev DOUBLE PRECISION, W4_variance DOUBLE PRECISION, W4_coeff_var DOUBLE PRECISION, W4_first_quart DOUBLE PRECISION, W4_median DOUBLE PRECISION, W4_third_quart DOUBLE PRECISION, W4_perc_90 DOUBLE PRECISION, neighbors_count DOUBLE PRECISION, compact_circle_nbrmean DOUBLE PRECISION, compact_circle_nbrstddev DOUBLE PRECISION, DV2_mean_nbrmean DOUBLE PRECISION, DV2_mean_nbrstddev DOUBLE PRECISION, DV2_stddev_nbrmean DOUBLE PRECISION, DV2_stddev_nbrstddev DOUBLE PRECISION, DV2_variance_nbrmean DOUBLE PRECISION, DV2_variance_nbrstddev DOUBLE PRECISION, DV2_coeff_var_nbrmean DOUBLE PRECISION, DV2_coeff_var_nbrstddev DOUBLE PRECISION, DV2_first_quart_nbrmean DOUBLE PRECISION, DV2_first_quart_nbrstddev DOUBLE PRECISION, DV2_median_nbrmean DOUBLE PRECISION, DV2_median_nbrstddev DOUBLE PRECISION, DV2_third_quart_nbrmean DOUBLE PRECISION, DV2_third_quart_nbrstddev DOUBLE PRECISION, DV2_perc_90_nbrmean DOUBLE PRECISION, DV2_perc_90_nbrstddev DOUBLE PRECISION, DV4_mean_nbrmean DOUBLE PRECISION, DV4_mean_nbrstddev DOUBLE PRECISION, DV4_stddev_nbrmean DOUBLE PRECISION, DV4_stddev_nbrstddev DOUBLE PRECISION, DV4_variance_nbrmean DOUBLE PRECISION, DV4_variance_nbrstddev DOUBLE PRECISION, DV4_coeff_var_nbrmean DOUBLE PRECISION, DV4_coeff_var_nbrstddev DOUBLE PRECISION, DV4_first_quart_nbrmean DOUBLE PRECISION, DV4_first_quart_nbrstddev DOUBLE PRECISION, DV4_median_nbrmean DOUBLE PRECISION, DV4_median_nbrstddev DOUBLE PRECISION, DV4_third_quart_nbrmean DOUBLE PRECISION, DV4_third_quart_nbrstddev DOUBLE PRECISION, DV4_perc_90_nbrmean DOUBLE PRECISION, DV4_perc_90_nbrstddev DOUBLE PRECISION, IDM2_mean_nbrmean DOUBLE PRECISION, IDM2_mean_nbrstddev DOUBLE PRECISION, IDM2_stddev_nbrmean DOUBLE PRECISION, IDM2_stddev_nbrstddev DOUBLE PRECISION, IDM2_variance_nbrmean DOUBLE PRECISION, IDM2_variance_nbrstddev DOUBLE PRECISION, IDM2_coeff_var_nbrmean DOUBLE PRECISION, IDM2_coeff_var_nbrstddev DOUBLE PRECISION, IDM2_first_quart_nbrmean DOUBLE PRECISION, IDM2_first_quart_nbrstddev DOUBLE PRECISION, IDM2_median_nbrmean DOUBLE PRECISION, IDM2_median_nbrstddev DOUBLE PRECISION, IDM2_third_quart_nbrmean DOUBLE PRECISION, IDM2_third_quart_nbrstddev DOUBLE PRECISION, IDM2_perc_90_nbrmean DOUBLE PRECISION, IDM2_perc_90_nbrstddev DOUBLE PRECISION, IDM4_mean_nbrmean DOUBLE PRECISION, IDM4_mean_nbrstddev DOUBLE PRECISION, IDM4_stddev_nbrmean DOUBLE PRECISION, IDM4_stddev_nbrstddev DOUBLE PRECISION, IDM4_variance_nbrmean DOUBLE PRECISION, IDM4_variance_nbrstddev DOUBLE PRECISION, IDM4_coeff_var_nbrmean DOUBLE PRECISION, IDM4_coeff_var_nbrstddev DOUBLE PRECISION, IDM4_first_quart_nbrmean DOUBLE PRECISION, IDM4_first_quart_nbrstddev DOUBLE PRECISION, IDM4_median_n
brmean DOUBLE PRECISION, IDM4_median_nbrstddev DOUBLE'
ERROR: Deleting column failed

Any suggestions?

I used "wc -c" to count the length of the string: it is 4096 characters.

Which DB driver do you use? It seems to be a limitation in the driver
communication, i.e. the buffer is limited.

Markus

Markus_Metz · March 8, 2019, 7:25pm

On Thu, Mar 7, 2019 at 6:35 PM Markus Neteler <neteler@osgeo.org> wrote:

Hi,

On Sat, Feb 16, 2019 at 12:28 AM Jamille Haarloo <j.r.haarloo@gmail.com> wrote:

Dear Grass community,

I don’t have any success with removal of columns from a vector file I am working with, while adding columns has not been a problem.

output:
v.db.dropcolumn map=nvTrainingset_test2019_clean@LUP1 columns=code
ERROR: Error while executing: ‘CREATE TEMPORARY TABLE nvTrainingset_test2019_clean_backup(cat INTEGER, compact_circle DOUBLE PRECISION, DV2_mean DOUBLE PRECISION, DV2_stddev DOUBLE PRECISION, DV2_variance DOUBLE PRECISION, DV2_coeff_var DOUBLE PRECISION, DV2_first_quart DOUBLE PRECISION, DV2_median DOUBLE PRECISION, DV2_third_quart DOUBLE PRECISION, DV2_perc_90 DOUBLE PRECISION, DV4_mean DOUBLE PRECISION, DV4_stddev DOUBLE PRECISION, DV4_variance DOUBLE PRECISION, DV4_coeff_var DOUBLE PRECISION, DV4_first_quart DOUBLE PRECISION, DV4_median DOUBLE PRECISION, DV4_third_quart DOUBLE PRECISION, DV4_perc_90 DOUBLE PRECISION, IDM2_mean DOUBLE PRECISION, IDM2_stddev DOUBLE PRECISION, IDM2_variance DOUBLE PRECISION, IDM2_coeff_var DOUBLE PRECISION, IDM2_first_quart DOUBLE PRECISION, IDM2_median DOUBLE PRECISION, IDM2_third_quart DOUBLE PRECISION, IDM2_perc_90 DOUBLE PRECISION, IDM4_mean DOUBLE PRECISION, IDM4_stddev DOUBLE PRECISION, IDM4_variance DOUBLE PRECISION, IDM4_coeff_var DOUBLE PRECISION, IDM4_first_quart DOUBLE PRECISION, IDM4_median DOUBLE PRECISION, IDM4_third_quart DOUBLE PRECISION, IDM4_perc_90 DOUBLE PRECISION, W2_mean DOUBLE PRECISION, W2_stddev DOUBLE PRECISION, W2_variance DOUBLE PRECISION, W2_coeff_var DOUBLE PRECISION, W2_first_quart DOUBLE PRECISION, W2_median DOUBLE PRECISION, W2_third_quart DOUBLE PRECISION, W2_perc_90 DOUBLE PRECISION, W4_mean DOUBLE PRECISION, W4_stddev DOUBLE PRECISION, W4_variance DOUBLE PRECISION, W4_coeff_var DOUBLE PRECISION, W4_first_quart DOUBLE PRECISION, W4_median DOUBLE PRECISION, W4_third_quart DOUBLE PRECISION, W4_perc_90 DOUBLE PRECISION, neighbors_count DOUBLE PRECISION, compact_circle_nbrmean DOUBLE PRECISION, compact_circle_nbrstddev DOUBLE PRECISION, DV2_mean_nbrmean DOUBLE PRECISION, DV2_mean_nbrstddev DOUBLE PRECISION, DV2_stddev_nbrmean DOUBLE PRECISION, DV2_stddev_nbrstddev DOUBLE PRECISION, DV2_variance_nbrmean DOUBLE PRECISION, DV2_variance_nbrstddev DOUBLE PRECISION, DV2_coeff_var_nbrmean DOUBLE PRECISION, DV2_coeff_var_nbrstddev DOUBLE PRECISION, DV2_first_quart_nbrmean DOUBLE PRECISION, DV2_first_quart_nbrstddev DOUBLE PRECISION, DV2_median_nbrmean DOUBLE PRECISION, DV2_median_nbrstddev DOUBLE PRECISION, DV2_third_quart_nbrmean DOUBLE PRECISION, DV2_third_quart_nbrstddev DOUBLE PRECISION, DV2_perc_90_nbrmean DOUBLE PRECISION, DV2_perc_90_nbrstddev DOUBLE PRECISION, DV4_mean_nbrmean DOUBLE PRECISION, DV4_mean_nbrstddev DOUBLE PRECISION, DV4_stddev_nbrmean DOUBLE PRECISION, DV4_stddev_nbrstddev DOUBLE PRECISION, DV4_variance_nbrmean DOUBLE PRECISION, DV4_variance_nbrstddev DOUBLE PRECISION, DV4_coeff_var_nbrmean DOUBLE PRECISION, DV4_coeff_var_nbrstddev DOUBLE PRECISION, DV4_first_quart_nbrmean DOUBLE PRECISION, DV4_first_quart_nbrstddev DOUBLE PRECISION, DV4_median_nbrmean DOUBLE PRECISION, DV4_median_nbrstddev DOUBLE PRECISION, DV4_third_quart_nbrmean DOUBLE PRECISION, DV4_third_quart_nbrstddev DOUBLE PRECISION, DV4_perc_90_nbrmean DOUBLE PRECISION, DV4_perc_90_nbrstddev DOUBLE PRECISION, IDM2_mean_nbrmean DOUBLE PRECISION, IDM2_mean_nbrstddev DOUBLE PRECISION, IDM2_stddev_nbrmean DOUBLE PRECISION, IDM2_stddev_nbrstddev DOUBLE PRECISION, IDM2_variance_nbrmean DOUBLE PRECISION, IDM2_variance_nbrstddev DOUBLE PRECISION, IDM2_coeff_var_nbrmean DOUBLE PRECISION, IDM2_coeff_var_nbrstddev DOUBLE PRECISION, IDM2_first_quart_nbrmean DOUBLE PRECISION, IDM2_first_quart_nbrstddev DOUBLE PRECISION, IDM2_median_nbrmean DOUBLE PRECISION, IDM2_median_nbrstddev DOUBLE PRECISION, IDM2_third_quart_nbrmean DOUBLE PRECISION, IDM2_third_quart_nbrstddev DOUBLE PRECISION, IDM2_perc_90_nbrmean DOUBLE PRECISION, IDM2_perc_90_nbrstddev DOUBLE PRECISION, IDM4_mean_nbrmean DOUBLE PRECISION, IDM4_mean_nbrstddev DOUBLE PRECISION, IDM4_stddev_nbrmean DOUBLE PRECISION, IDM4_stddev_nbrstddev DOUBLE PRECISION, IDM4_variance_nbrmean DOUBLE PRECISION, IDM4_variance_nbrstddev DOUBLE PRECISION, IDM4_coeff_var_nbrmean DOUBLE PRECISION, IDM4_coeff_var_nbrstddev DOUBLE PRECISION, IDM4_first_quart_nbrmean DOUBLE PRECISION, IDM4_first_quart_nbrstddev DOUBLE PRECISION, IDM4_median_n
brmean DOUBLE PRECISION, IDM4_median_nbrstddev DOUBLE’
ERROR: Deleting column failed

Any suggestions?

I used “wc -c” to count the length of the string: it is 4096 characters.

Which DB driver do you use? It seems to be a limitation in the driver
communication, i.e. the buffer is limited.

The db SQL buffer has been enlarged in trunk r74189 and relbr76 r74190.

Please test!

Markus M

Markus

grass-user mailing list
grass-user@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/grass-user

Jamille_Haarloo · March 14, 2019, 2:44am

Just tested:

(Wed Mar 13 23:42:59 2019)
v.db.dropcolumn map=nvTrainingset_new2019@LUP1 columns=Uitleg2,SegUitleg,x22kcluster,x12kcluster,x17kcluster,x8kcluster,xkcluster
ERROR: Error while executing: ‘CREATE TEMPORARY TABLE nvTrainingset_new2019_backup(cat INTEGER, compact_circle DOUBLE PRECISION, DV2_mean DOUBLE PRECISION, DV2_stddev DOUBLE PRECISION, DV2_variance DOUBLE PRECISION, DV2_coeff_var DOUBLE PRECISION, DV2_first_quart DOUBLE PRECISION, DV2_median DOUBLE PRECISION, DV2_third_quart DOUBLE PRECISION, DV2_perc_90 DOUBLE PRECISION, DV4_mean DOUBLE PRECISION, DV4_stddev DOUBLE PRECISION, DV4_variance DOUBLE PRECISION, DV4_coeff_var DOUBLE PRECISION, DV4_first_quart DOUBLE PRECISION, DV4_median DOUBLE PRECISION, DV4_third_quart DOUBLE PRECISION, DV4_perc_90 DOUBLE PRECISION, IDM2_mean DOUBLE PRECISION, IDM2_stddev DOUBLE PRECISION, IDM2_variance DOUBLE PRECISION, IDM2_coeff_var DOUBLE PRECISION, IDM2_first_quart DOUBLE PRECISION, IDM2_median DOUBLE PRECISION, IDM2_third_quart DOUBLE PRECISION, IDM2_perc_90 DOUBLE PRECISION, IDM4_mean DOUBLE PRECISION, IDM4_stddev DOUBLE PRECISION, IDM4_variance DOUBLE PRECISION, IDM4_coeff_var DOUBLE PRECISION, IDM4_first_quart DOUBLE PRECISION, IDM4_median DOUBLE PRECISION, IDM4_third_quart DOUBLE PRECISION, IDM4_perc_90 DOUBLE PRECISION, W2_mean DOUBLE PRECISION, W2_stddev DOUBLE PRECISION, W2_variance DOUBLE PRECISION, W2_coeff_var DOUBLE PRECISION, W2_first_quart DOUBLE PRECISION, W2_median DOUBLE PRECISION, W2_third_quart DOUBLE PRECISION, W2_perc_90 DOUBLE PRECISION, W4_mean DOUBLE PRECISION, W4_stddev DOUBLE PRECISION, W4_variance DOUBLE PRECISION, W4_coeff_var DOUBLE PRECISION, W4_first_quart DOUBLE PRECISION, W4_median DOUBLE PRECISION, W4_third_quart DOUBLE PRECISION, W4_perc_90 DOUBLE PRECISION, neighbors_count DOUBLE PRECISION, compact_circle_nbrmean DOUBLE PRECISION, compact_circle_nbrstddev DOUBLE PRECISION, DV2_mean_nbrmean DOUBLE PRECISION, DV2_mean_nbrstddev DOUBLE PRECISION, DV2_stddev_nbrmean DOUBLE PRECISION, DV2_stddev_nbrstddev DOUBLE PRECISION, DV2_variance_nbrmean DOUBLE PRECISION, DV2_variance_nbrstddev DOUBLE PRECISION, DV2_coeff_var_nbrmean DOUBLE PRECISION, DV2_coeff_var_nbrstddev DOUBLE PRECISION, DV2_first_quart_nbrmean DOUBLE PRECISION, DV2_first_quart_nbrstddev DOUBLE PRECISION, DV2_median_nbrmean DOUBLE PRECISION, DV2_median_nbrstddev DOUBLE PRECISION, DV2_third_quart_nbrmean DOUBLE PRECISION, DV2_third_quart_nbrstddev DOUBLE PRECISION, DV2_perc_90_nbrmean DOUBLE PRECISION, DV2_perc_90_nbrstddev DOUBLE PRECISION, DV4_mean_nbrmean DOUBLE PRECISION, DV4_mean_nbrstddev DOUBLE PRECISION, DV4_stddev_nbrmean DOUBLE PRECISION, DV4_stddev_nbrstddev DOUBLE PRECISION, DV4_variance_nbrmean DOUBLE PRECISION, DV4_variance_nbrstddev DOUBLE PRECISION, DV4_coeff_var_nbrmean DOUBLE PRECISION, DV4_coeff_var_nbrstddev DOUBLE PRECISION, DV4_first_quart_nbrmean DOUBLE PRECISION, DV4_first_quart_nbrstddev DOUBLE PRECISION, DV4_median_nbrmean DOUBLE PRECISION, DV4_median_nbrstddev DOUBLE PRECISION, DV4_third_quart_nbrmean DOUBLE PRECISION, DV4_third_quart_nbrstddev DOUBLE PRECISION, DV4_perc_90_nbrmean DOUBLE PRECISION, DV4_perc_90_nbrstddev DOUBLE PRECISION, IDM2_mean_nbrmean DOUBLE PRECISION, IDM2_mean_nbrstddev DOUBLE PRECISION, IDM2_stddev_nbrmean DOUBLE PRECISION, IDM2_stddev_nbrstddev DOUBLE PRECISION, IDM2_variance_nbrmean DOUBLE PRECISION, IDM2_variance_nbrstddev DOUBLE PRECISION, IDM2_coeff_var_nbrmean DOUBLE PRECISION, IDM2_coeff_var_nbrstddev DOUBLE PRECISION, IDM2_first_quart_nbrmean DOUBLE PRECISION, IDM2_first_quart_nbrstddev DOUBLE PRECISION, IDM2_median_nbrmean DOUBLE PRECISION, IDM2_median_nbrstddev DOUBLE PRECISION, IDM2_third_quart_nbrmean DOUBLE PRECISION, IDM2_third_quart_nbrstddev DOUBLE PRECISION, IDM2_perc_90_nbrmean DOUBLE PRECISION, IDM2_perc_90_nbrstddev DOUBLE PRECISION, IDM4_mean_nbrmean DOUBLE PRECISION, IDM4_mean_nbrstddev DOUBLE PRECISION, IDM4_stddev_nbrmean DOUBLE PRECISION, IDM4_stddev_nbrstddev DOUBLE PRECISION, IDM4_variance_nbrmean DOUBLE PRECISION, IDM4_variance_nbrstddev DOUBLE PRECISION, IDM4_coeff_var_nbrmean DOUBLE PRECISION, IDM4_coeff_var_nbrstddev DOUBLE PRECISION, IDM4_first_quart_nbrmean DOUBLE PRECISION, IDM4_first_quart_nbrstddev DOUBLE PRECISION, IDM4_median_nbrmean
DOUBLE PRECISION, IDM4_median_nbrstddev DOUBLE PRECIS’
ERROR: Deleting column failed

On Fri, Mar 8, 2019 at 4:25 PM Markus Metz <markus.metz.giswork@gmail.com> wrote:

On Thu, Mar 7, 2019 at 6:35 PM Markus Neteler <neteler@osgeo.org> wrote:

Hi,

On Sat, Feb 16, 2019 at 12:28 AM Jamille Haarloo <j.r.haarloo@gmail.com> wrote:

Dear Grass community,

I don’t have any success with removal of columns from a vector file I am working with, while adding columns has not been a problem.

output:
v.db.dropcolumn map=nvTrainingset_test2019_clean@LUP1 columns=code
ERROR: Error while executing: ‘CREATE TEMPORARY TABLE nvTrainingset_test2019_clean_backup(cat INTEGER, compact_circle DOUBLE PRECISION, DV2_mean DOUBLE PRECISION, DV2_stddev DOUBLE PRECISION, DV2_variance DOUBLE PRECISION, DV2_coeff_var DOUBLE PRECISION, DV2_first_quart DOUBLE PRECISION, DV2_median DOUBLE PRECISION, DV2_third_quart DOUBLE PRECISION, DV2_perc_90 DOUBLE PRECISION, DV4_mean DOUBLE PRECISION, DV4_stddev DOUBLE PRECISION, DV4_variance DOUBLE PRECISION, DV4_coeff_var DOUBLE PRECISION, DV4_first_quart DOUBLE PRECISION, DV4_median DOUBLE PRECISION, DV4_third_quart DOUBLE PRECISION, DV4_perc_90 DOUBLE PRECISION, IDM2_mean DOUBLE PRECISION, IDM2_stddev DOUBLE PRECISION, IDM2_variance DOUBLE PRECISION, IDM2_coeff_var DOUBLE PRECISION, IDM2_first_quart DOUBLE PRECISION, IDM2_median DOUBLE PRECISION, IDM2_third_quart DOUBLE PRECISION, IDM2_perc_90 DOUBLE PRECISION, IDM4_mean DOUBLE PRECISION, IDM4_stddev DOUBLE PRECISION, IDM4_variance DOUBLE PRECISION, IDM4_coeff_var DOUBLE PRECISION, IDM4_first_quart DOUBLE PRECISION, IDM4_median DOUBLE PRECISION, IDM4_third_quart DOUBLE PRECISION, IDM4_perc_90 DOUBLE PRECISION, W2_mean DOUBLE PRECISION, W2_stddev DOUBLE PRECISION, W2_variance DOUBLE PRECISION, W2_coeff_var DOUBLE PRECISION, W2_first_quart DOUBLE PRECISION, W2_median DOUBLE PRECISION, W2_third_quart DOUBLE PRECISION, W2_perc_90 DOUBLE PRECISION, W4_mean DOUBLE PRECISION, W4_stddev DOUBLE PRECISION, W4_variance DOUBLE PRECISION, W4_coeff_var DOUBLE PRECISION, W4_first_quart DOUBLE PRECISION, W4_median DOUBLE PRECISION, W4_third_quart DOUBLE PRECISION, W4_perc_90 DOUBLE PRECISION, neighbors_count DOUBLE PRECISION, compact_circle_nbrmean DOUBLE PRECISION, compact_circle_nbrstddev DOUBLE PRECISION, DV2_mean_nbrmean DOUBLE PRECISION, DV2_mean_nbrstddev DOUBLE PRECISION, DV2_stddev_nbrmean DOUBLE PRECISION, DV2_stddev_nbrstddev DOUBLE PRECISION, DV2_variance_nbrmean DOUBLE PRECISION, DV2_variance_nbrstddev DOUBLE PRECISION, DV2_coeff_var_nbrmean DOUBLE PRECISION, DV2_coeff_var_nbrstddev DOUBLE PRECISION, DV2_first_quart_nbrmean DOUBLE PRECISION, DV2_first_quart_nbrstddev DOUBLE PRECISION, DV2_median_nbrmean DOUBLE PRECISION, DV2_median_nbrstddev DOUBLE PRECISION, DV2_third_quart_nbrmean DOUBLE PRECISION, DV2_third_quart_nbrstddev DOUBLE PRECISION, DV2_perc_90_nbrmean DOUBLE PRECISION, DV2_perc_90_nbrstddev DOUBLE PRECISION, DV4_mean_nbrmean DOUBLE PRECISION, DV4_mean_nbrstddev DOUBLE PRECISION, DV4_stddev_nbrmean DOUBLE PRECISION, DV4_stddev_nbrstddev DOUBLE PRECISION, DV4_variance_nbrmean DOUBLE PRECISION, DV4_variance_nbrstddev DOUBLE PRECISION, DV4_coeff_var_nbrmean DOUBLE PRECISION, DV4_coeff_var_nbrstddev DOUBLE PRECISION, DV4_first_quart_nbrmean DOUBLE PRECISION, DV4_first_quart_nbrstddev DOUBLE PRECISION, DV4_median_nbrmean DOUBLE PRECISION, DV4_median_nbrstddev DOUBLE PRECISION, DV4_third_quart_nbrmean DOUBLE PRECISION, DV4_third_quart_nbrstddev DOUBLE PRECISION, DV4_perc_90_nbrmean DOUBLE PRECISION, DV4_perc_90_nbrstddev DOUBLE PRECISION, IDM2_mean_nbrmean DOUBLE PRECISION, IDM2_mean_nbrstddev DOUBLE PRECISION, IDM2_stddev_nbrmean DOUBLE PRECISION, IDM2_stddev_nbrstddev DOUBLE PRECISION, IDM2_variance_nbrmean DOUBLE PRECISION, IDM2_variance_nbrstddev DOUBLE PRECISION, IDM2_coeff_var_nbrmean DOUBLE PRECISION, IDM2_coeff_var_nbrstddev DOUBLE PRECISION, IDM2_first_quart_nbrmean DOUBLE PRECISION, IDM2_first_quart_nbrstddev DOUBLE PRECISION, IDM2_median_nbrmean DOUBLE PRECISION, IDM2_median_nbrstddev DOUBLE PRECISION, IDM2_third_quart_nbrmean DOUBLE PRECISION, IDM2_third_quart_nbrstddev DOUBLE PRECISION, IDM2_perc_90_nbrmean DOUBLE PRECISION, IDM2_perc_90_nbrstddev DOUBLE PRECISION, IDM4_mean_nbrmean DOUBLE PRECISION, IDM4_mean_nbrstddev DOUBLE PRECISION, IDM4_stddev_nbrmean DOUBLE PRECISION, IDM4_stddev_nbrstddev DOUBLE PRECISION, IDM4_variance_nbrmean DOUBLE PRECISION, IDM4_variance_nbrstddev DOUBLE PRECISION, IDM4_coeff_var_nbrmean DOUBLE PRECISION, IDM4_coeff_var_nbrstddev DOUBLE PRECISION, IDM4_first_quart_nbrmean DOUBLE PRECISION, IDM4_first_quart_nbrstddev DOUBLE PRECISION, IDM4_median_n
brmean DOUBLE PRECISION, IDM4_median_nbrstddev DOUBLE’
ERROR: Deleting column failed

Any suggestions?

I used “wc -c” to count the length of the string: it is 4096 characters.

Which DB driver do you use? It seems to be a limitation in the driver
communication, i.e. the buffer is limited.

The db SQL buffer has been enlarged in trunk r74189 and relbr76 r74190.

Please test!

Markus M

Markus

grass-user mailing list
grass-user@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/grass-user

user75 · March 14, 2019, 8:11am

Hi Jamille,

just for couriosity. How many columns holds the vectorset?

In fact from a database perspective I would rather choose to keep only geometry-related data or metadata direct with the vectorset. Concerning the column names I would suspect there rather should be a bunch of attribute tables to join to the vectorset. From a database perspective one usualy tries to normalize the database structure, i.e. break down tables to avoid redundancies.

For example names like DV2_median, DV4_median, IDM2_median, IDM4_median seem to me as you could create 4 separate tables each with a column “median” (and other columns like “first_quart” an so on). Then you join the tables by a key-column (most probably “cat”).

In that case you avoid probable redundancies and keep tables small which results in avoiding DB-driver issues because of to small query-(/command-)buffer, respective datatype restrictions (of the buffer). Which seems the cause of your actual troubles.

If that could be a feasible approach in your case it might avoid what you described.

Best regards.

Stefan

Jamille Haarloo j.r.haarloo@gmail.com hat am 14. März 2019 um 03:44 geschrieben:

Just tested:

(Wed Mar 13 23:42:59 2019)
v.db.dropcolumn map=nvTrainingset_new2019@LUP1 columns=Uitleg2,SegUitleg,x22kcluster,x12kcluster,x17kcluster,x8kcluster,xkcluster
ERROR: Error while executing: ‘CREATE TEMPORARY TABLE nvTrainingset_new2019_backup(cat INTEGER, compact_circle DOUBLE PRECISION, DV2_mean DOUBLE PRECISION, DV2_stddev DOUBLE PRECISION, DV2_variance DOUBLE PRECISION, DV2_coeff_var DOUBLE PRECISION, DV2_first_quart DOUBLE PRECISION, DV2_median DOUBLE PRECISION, DV2_third_quart DOUBLE PRECISION, DV2_perc_90 DOUBLE PRECISION, DV4_mean DOUBLE PRECISION, DV4_stddev DOUBLE PRECISION, DV4_variance DOUBLE PRECISION, DV4_coeff_var DOUBLE PRECISION, DV4_first_quart DOUBLE PRECISION, DV4_median DOUBLE PRECISION, DV4_third_quart DOUBLE PRECISION, DV4_perc_90 DOUBLE PRECISION, IDM2_mean DOUBLE PRECISION, IDM2_stddev DOUBLE PRECISION, IDM2_variance DOUBLE PRECISION, IDM2_coeff_var DOUBLE PRECISION, IDM2_first_quart DOUBLE PRECISION, IDM2_median DOUBLE PRECISION, IDM2_third_quart DOUBLE PRECISION, IDM2_perc_90 DOUBLE PRECISION, IDM4_mean DOUBLE PRECISION, IDM4_stddev DOUBLE PRECISION, IDM4_variance DOUBLE PRECISION, IDM4_coeff_var DOUBLE PRECISION, IDM4_first_quart DOUBLE PRECISION, IDM4_median DOUBLE PRECISION, IDM4_third_quart DOUBLE PRECISION, IDM4_perc_90 DOUBLE PRECISION, W2_mean DOUBLE PRECISION, W2_stddev DOUBLE PRECISION, W2_variance DOUBLE PRECISION, W2_coeff_var DOUBLE PRECISION, W2_first_quart DOUBLE PRECISION, W2_median DOUBLE PRECISION, W2_third_quart DOUBLE PRECISION, W2_perc_90 DOUBLE PRECISION, W4_mean DOUBLE PRECISION, W4_stddev DOUBLE PRECISION, W4_variance DOUBLE PRECISION, W4_coeff_var DOUBLE PRECISION, W4_first_quart DOUBLE PRECISION, W4_median DOUBLE PRECISION, W4_third_quart DOUBLE PRECISION, W4_perc_90 DOUBLE PRECISION, neighbors_count DOUBLE PRECISION, compact_circle_nbrmean DOUBLE PRECISION, compact_circle_nbrstddev DOUBLE PRECISION, DV2_mean_nbrmean DOUBLE PRECISION, DV2_mean_nbrstddev DOUBLE PRECISION, DV2_stddev_nbrmean DOUBLE PRECISION, DV2_stddev_nbrstddev DOUBLE PRECISION, DV2_variance_nbrmean DOUBLE PRECISION, DV2_variance_nbrstddev DOUBLE PRECISION, DV2_coeff_var_nbrmean DOUBLE PRECISION, DV2_coeff_var_nbrstddev DOUBLE PRECISION, DV2_first_quart_nbrmean DOUBLE PRECISION, DV2_first_quart_nbrstddev DOUBLE PRECISION, DV2_median_nbrmean DOUBLE PRECISION, DV2_median_nbrstddev DOUBLE PRECISION, DV2_third_quart_nbrmean DOUBLE PRECISION, DV2_third_quart_nbrstddev DOUBLE PRECISION, DV2_perc_90_nbrmean DOUBLE PRECISION, DV2_perc_90_nbrstddev DOUBLE PRECISION, DV4_mean_nbrmean DOUBLE PRECISION, DV4_mean_nbrstddev DOUBLE PRECISION, DV4_stddev_nbrmean DOUBLE PRECISION, DV4_stddev_nbrstddev DOUBLE PRECISION, DV4_variance_nbrmean DOUBLE PRECISION, DV4_variance_nbrstddev DOUBLE PRECISION, DV4_coeff_var_nbrmean DOUBLE PRECISION, DV4_coeff_var_nbrstddev DOUBLE PRECISION, DV4_first_quart_nbrmean DOUBLE PRECISION, DV4_first_quart_nbrstddev DOUBLE PRECISION, DV4_median_nbrmean DOUBLE PRECISION, DV4_median_nbrstddev DOUBLE PRECISION, DV4_third_quart_nbrmean DOUBLE PRECISION, DV4_third_quart_nbrstddev DOUBLE PRECISION, DV4_perc_90_nbrmean DOUBLE PRECISION, DV4_perc_90_nbrstddev DOUBLE PRECISION, IDM2_mean_nbrmean DOUBLE PRECISION, IDM2_mean_nbrstddev DOUBLE PRECISION, IDM2_stddev_nbrmean DOUBLE PRECISION, IDM2_stddev_nbrstddev DOUBLE PRECISION, IDM2_variance_nbrmean DOUBLE PRECISION, IDM2_variance_nbrstddev DOUBLE PRECISION, IDM2_coeff_var_nbrmean DOUBLE PRECISION, IDM2_coeff_var_nbrstddev DOUBLE PRECISION, IDM2_first_quart_nbrmean DOUBLE PRECISION, IDM2_first_quart_nbrstddev DOUBLE PRECISION, IDM2_median_nbrmean DOUBLE PRECISION, IDM2_median_nbrstddev DOUBLE PRECISION, IDM2_third_quart_nbrmean DOUBLE PRECISION, IDM2_third_quart_nbrstddev DOUBLE PRECISION, IDM2_perc_90_nbrmean DOUBLE PRECISION, IDM2_perc_90_nbrstddev DOUBLE PRECISION, IDM4_mean_nbrmean DOUBLE PRECISION, IDM4_mean_nbrstddev DOUBLE PRECISION, IDM4_stddev_nbrmean DOUBLE PRECISION, IDM4_stddev_nbrstddev DOUBLE PRECISION, IDM4_variance_nbrmean DOUBLE PRECISION, IDM4_variance_nbrstddev DOUBLE PRECISION, IDM4_coeff_var_nbrmean DOUBLE PRECISION, IDM4_coeff_var_nbrstddev DOUBLE PRECISION, IDM4_first_quart_nbrmean DOUBLE PRECISION, IDM4_first_quart_nbrstddev DOUBLE PRECISION, IDM4_median_nbrmean
DOUBLE PRECISION, IDM4_median_nbrstddev DOUBLE PRECIS’
ERROR: Deleting column failed

On Fri, Mar 8, 2019 at 4:25 PM Markus Metz < markus.metz.giswork@gmail.com> wrote:

On Thu, Mar 7, 2019 at 6:35 PM Markus Neteler < neteler@osgeo.org> wrote:

Hi,

On Sat, Feb 16, 2019 at 12:28 AM Jamille Haarloo < j.r.haarloo@gmail.com> wrote:

Dear Grass community,

I don’t have any success with removal of columns from a vector file I am working with, while adding columns has not been a problem.

output:
v.db.dropcolumn map=nvTrainingset_test2019_clean@LUP1 columns=code
ERROR: Error while executing: ‘CREATE TEMPORARY TABLE nvTrainingset_test2019_clean_backup(cat INTEGER, compact_circle DOUBLE PRECISION, DV2_mean DOUBLE PRECISION, DV2_stddev DOUBLE PRECISION, DV2_variance DOUBLE PRECISION, DV2_coeff_var DOUBLE PRECISION, DV2_first_quart DOUBLE PRECISION, DV2_median DOUBLE PRECISION, DV2_third_quart DOUBLE PRECISION, DV2_perc_90 DOUBLE PRECISION, DV4_mean DOUBLE PRECISION, DV4_stddev DOUBLE PRECISION, DV4_variance DOUBLE PRECISION, DV4_coeff_var DOUBLE PRECISION, DV4_first_quart DOUBLE PRECISION, DV4_median DOUBLE PRECISION, DV4_third_quart DOUBLE PRECISION, DV4_perc_90 DOUBLE PRECISION, IDM2_mean DOUBLE PRECISION, IDM2_stddev DOUBLE PRECISION, IDM2_variance DOUBLE PRECISION, IDM2_coeff_var DOUBLE PRECISION, IDM2_first_quart DOUBLE PRECISION, IDM2_median DOUBLE PRECISION, IDM2_third_quart DOUBLE PRECISION, IDM2_perc_90 DOUBLE PRECISION, IDM4_mean DOUBLE PRECISION, IDM4_stddev DOUBLE PRECISION, IDM4_variance DOUBLE PRECISION, IDM4_coeff_var DOUBLE PRECISION, IDM4_first_quart DOUBLE PRECISION, IDM4_median DOUBLE PRECISION, IDM4_third_quart DOUBLE PRECISION, IDM4_perc_90 DOUBLE PRECISION, W2_mean DOUBLE PRECISION, W2_stddev DOUBLE PRECISION, W2_variance DOUBLE PRECISION, W2_coeff_var DOUBLE PRECISION, W2_first_quart DOUBLE PRECISION, W2_median DOUBLE PRECISION, W2_third_quart DOUBLE PRECISION, W2_perc_90 DOUBLE PRECISION, W4_mean DOUBLE PRECISION, W4_stddev DOUBLE PRECISION, W4_variance DOUBLE PRECISION, W4_coeff_var DOUBLE PRECISION, W4_first_quart DOUBLE PRECISION, W4_median DOUBLE PRECISION, W4_third_quart DOUBLE PRECISION, W4_perc_90 DOUBLE PRECISION, neighbors_count DOUBLE PRECISION, compact_circle_nbrmean DOUBLE PRECISION, compact_circle_nbrstddev DOUBLE PRECISION, DV2_mean_nbrmean DOUBLE PRECISION, DV2_mean_nbrstddev DOUBLE PRECISION, DV2_stddev_nbrmean DOUBLE PRECISION, DV2_stddev_nbrstddev DOUBLE PRECISION, DV2_variance_nbrmean DOUBLE PRECISION, DV2_variance_nbrstddev DOUBLE PRECISION, DV2_coeff_var_nbrmean DOUBLE PRECISION, DV2_coeff_var_nbrstddev DOUBLE PRECISION, DV2_first_quart_nbrmean DOUBLE PRECISION, DV2_first_quart_nbrstddev DOUBLE PRECISION, DV2_median_nbrmean DOUBLE PRECISION, DV2_median_nbrstddev DOUBLE PRECISION, DV2_third_quart_nbrmean DOUBLE PRECISION, DV2_third_quart_nbrstddev DOUBLE PRECISION, DV2_perc_90_nbrmean DOUBLE PRECISION, DV2_perc_90_nbrstddev DOUBLE PRECISION, DV4_mean_nbrmean DOUBLE PRECISION, DV4_mean_nbrstddev DOUBLE PRECISION, DV4_stddev_nbrmean DOUBLE PRECISION, DV4_stddev_nbrstddev DOUBLE PRECISION, DV4_variance_nbrmean DOUBLE PRECISION, DV4_variance_nbrstddev DOUBLE PRECISION, DV4_coeff_var_nbrmean DOUBLE PRECISION, DV4_coeff_var_nbrstddev DOUBLE PRECISION, DV4_first_quart_nbrmean DOUBLE PRECISION, DV4_first_quart_nbrstddev DOUBLE PRECISION, DV4_median_nbrmean DOUBLE PRECISION, DV4_median_nbrstddev DOUBLE PRECISION, DV4_third_quart_nbrmean DOUBLE PRECISION, DV4_third_quart_nbrstddev DOUBLE PRECISION, DV4_perc_90_nbrmean DOUBLE PRECISION, DV4_perc_90_nbrstddev DOUBLE PRECISION, IDM2_mean_nbrmean DOUBLE PRECISION, IDM2_mean_nbrstddev DOUBLE PRECISION, IDM2_stddev_nbrmean DOUBLE PRECISION, IDM2_stddev_nbrstddev DOUBLE PRECISION, IDM2_variance_nbrmean DOUBLE PRECISION, IDM2_variance_nbrstddev DOUBLE PRECISION, IDM2_coeff_var_nbrmean DOUBLE PRECISION, IDM2_coeff_var_nbrstddev DOUBLE PRECISION, IDM2_first_quart_nbrmean DOUBLE PRECISION, IDM2_first_quart_nbrstddev DOUBLE PRECISION, IDM2_median_nbrmean DOUBLE PRECISION, IDM2_median_nbrstddev DOUBLE PRECISION, IDM2_third_quart_nbrmean DOUBLE PRECISION, IDM2_third_quart_nbrstddev DOUBLE PRECISION, IDM2_perc_90_nbrmean DOUBLE PRECISION, IDM2_perc_90_nbrstddev DOUBLE PRECISION, IDM4_mean_nbrmean DOUBLE PRECISION, IDM4_mean_nbrstddev DOUBLE PRECISION, IDM4_stddev_nbrmean DOUBLE PRECISION, IDM4_stddev_nbrstddev DOUBLE PRECISION, IDM4_variance_nbrmean DOUBLE PRECISION, IDM4_variance_nbrstddev DOUBLE PRECISION, IDM4_coeff_var_nbrmean DOUBLE PRECISION, IDM4_coeff_var_nbrstddev DOUBLE PRECISION, IDM4_first_quart_nbrmean DOUBLE PRECISION, IDM4_first_quart_nbrstddev DOUBLE PRECISION, IDM4_median_n
brmean DOUBLE PRECISION, IDM4_median_nbrstddev DOUBLE’
ERROR: Deleting column failed

Any suggestions?

I used “wc -c” to count the length of the string: it is 4096 characters.

Which DB driver do you use? It seems to be a limitation in the driver
communication, i.e. the buffer is limited.

The db SQL buffer has been enlarged in trunk r74189 and relbr76 r74190.

Please test!

Markus M

Markus

grass-user mailing list
grass-user@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/grass-user

grass-user mailing list
grass-user@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/grass-user

Markus_Metz · March 14, 2019, 8:20am

On Thu, Mar 14, 2019 at 3:44 AM Jamille Haarloo <j.r.haarloo@gmail.com> wrote:

Just tested:

(Wed Mar 13 23:42:59 2019)
v.db.dropcolumn map=nvTrainingset_new2019@LUP1 columns=Uitleg2,SegUitleg,x22kcluster,x12kcluster,x17kcluster,x8kcluster,xkcluster
ERROR: Error while executing: ‘CREATE TEMPORARY TABLE nvTrainingset_new2019_backup(cat INTEGER, compact_circle DOUBLE PRECISION, DV2_mean DOUBLE PRECISION, DV2_stddev DOUBLE PRECISION, DV2_variance DOUBLE PRECISION, DV2_coeff_var DOUBLE PRECISION, DV2_first_quart DOUBLE PRECISION, DV2_median DOUBLE PRECISION, DV2_third_quart DOUBLE PRECISION, DV2_perc_90 DOUBLE PRECISION, DV4_mean DOUBLE PRECISION, DV4_stddev DOUBLE PRECISION, DV4_variance DOUBLE PRECISION, DV4_coeff_var DOUBLE PRECISION, DV4_first_quart DOUBLE PRECISION, DV4_median DOUBLE PRECISION, DV4_third_quart DOUBLE PRECISION, DV4_perc_90 DOUBLE PRECISION, IDM2_mean DOUBLE PRECISION, IDM2_stddev DOUBLE PRECISION, IDM2_variance DOUBLE PRECISION, IDM2_coeff_var DOUBLE PRECISION, IDM2_first_quart DOUBLE PRECISION, IDM2_median DOUBLE PRECISION, IDM2_third_quart DOUBLE PRECISION, IDM2_perc_90 DOUBLE PRECISION, IDM4_mean DOUBLE PRECISION, IDM4_stddev DOUBLE PRECISION, IDM4_variance DOUBLE PRECISION, IDM4_coeff_var DOUBLE PRECISION, IDM4_first_quart DOUBLE PRECISION, IDM4_median DOUBLE PRECISION, IDM4_third_quart DOUBLE PRECISION, IDM4_perc_90 DOUBLE PRECISION, W2_mean DOUBLE PRECISION, W2_stddev DOUBLE PRECISION, W2_variance DOUBLE PRECISION, W2_coeff_var DOUBLE PRECISION, W2_first_quart DOUBLE PRECISION, W2_median DOUBLE PRECISION, W2_third_quart DOUBLE PRECISION, W2_perc_90 DOUBLE PRECISION, W4_mean DOUBLE PRECISION, W4_stddev DOUBLE PRECISION, W4_variance DOUBLE PRECISION, W4_coeff_var DOUBLE PRECISION, W4_first_quart DOUBLE PRECISION, W4_median DOUBLE PRECISION, W4_third_quart DOUBLE PRECISION, W4_perc_90 DOUBLE PRECISION, neighbors_count DOUBLE PRECISION, compact_circle_nbrmean DOUBLE PRECISION, compact_circle_nbrstddev DOUBLE PRECISION, DV2_mean_nbrmean DOUBLE PRECISION, DV2_mean_nbrstddev DOUBLE PRECISION, DV2_stddev_nbrmean DOUBLE PRECISION, DV2_stddev_nbrstddev DOUBLE PRECISION, DV2_variance_nbrmean DOUBLE PRECISION, DV2_variance_nbrstddev DOUBLE PRECISION, DV2_coeff_var_nbrmean DOUBLE PRECISION, DV2_coeff_var_nbrstddev DOUBLE PRECISION, DV2_first_quart_nbrmean DOUBLE PRECISION, DV2_first_quart_nbrstddev DOUBLE PRECISION, DV2_median_nbrmean DOUBLE PRECISION, DV2_median_nbrstddev DOUBLE PRECISION, DV2_third_quart_nbrmean DOUBLE PRECISION, DV2_third_quart_nbrstddev DOUBLE PRECISION, DV2_perc_90_nbrmean DOUBLE PRECISION, DV2_perc_90_nbrstddev DOUBLE PRECISION, DV4_mean_nbrmean DOUBLE PRECISION, DV4_mean_nbrstddev DOUBLE PRECISION, DV4_stddev_nbrmean DOUBLE PRECISION, DV4_stddev_nbrstddev DOUBLE PRECISION, DV4_variance_nbrmean DOUBLE PRECISION, DV4_variance_nbrstddev DOUBLE PRECISION, DV4_coeff_var_nbrmean DOUBLE PRECISION, DV4_coeff_var_nbrstddev DOUBLE PRECISION, DV4_first_quart_nbrmean DOUBLE PRECISION, DV4_first_quart_nbrstddev DOUBLE PRECISION, DV4_median_nbrmean DOUBLE PRECISION, DV4_median_nbrstddev DOUBLE PRECISION, DV4_third_quart_nbrmean DOUBLE PRECISION, DV4_third_quart_nbrstddev DOUBLE PRECISION, DV4_perc_90_nbrmean DOUBLE PRECISION, DV4_perc_90_nbrstddev DOUBLE PRECISION, IDM2_mean_nbrmean DOUBLE PRECISION, IDM2_mean_nbrstddev DOUBLE PRECISION, IDM2_stddev_nbrmean DOUBLE PRECISION, IDM2_stddev_nbrstddev DOUBLE PRECISION, IDM2_variance_nbrmean DOUBLE PRECISION, IDM2_variance_nbrstddev DOUBLE PRECISION, IDM2_coeff_var_nbrmean DOUBLE PRECISION, IDM2_coeff_var_nbrstddev DOUBLE PRECISION, IDM2_first_quart_nbrmean DOUBLE PRECISION, IDM2_first_quart_nbrstddev DOUBLE PRECISION, IDM2_median_nbrmean DOUBLE PRECISION, IDM2_median_nbrstddev DOUBLE PRECISION, IDM2_third_quart_nbrmean DOUBLE PRECISION, IDM2_third_quart_nbrstddev DOUBLE PRECISION, IDM2_perc_90_nbrmean DOUBLE PRECISION, IDM2_perc_90_nbrstddev DOUBLE PRECISION, IDM4_mean_nbrmean DOUBLE PRECISION, IDM4_mean_nbrstddev DOUBLE PRECISION, IDM4_stddev_nbrmean DOUBLE PRECISION, IDM4_stddev_nbrstddev DOUBLE PRECISION, IDM4_variance_nbrmean DOUBLE PRECISION, IDM4_variance_nbrstddev DOUBLE PRECISION, IDM4_coeff_var_nbrmean DOUBLE PRECISION, IDM4_coeff_var_nbrstddev DOUBLE PRECISION, IDM4_first_quart_nbrmean DOUBLE PRECISION, IDM4_first_quart_nbrstddev DOUBLE PRECISION, IDM4_median_nbrmean
DOUBLE PRECISION, IDM4_median_nbrstddev DOUBLE PRECIS’
ERROR: Deleting column failed

The sql command is still truncated to 4096 characters. Are you sure you are using latest GRASS 7.6 or 7.7 from svn? For me it works in trunk with more than 4096 characters.

Markus M

On Fri, Mar 8, 2019 at 4:25 PM Markus Metz <markus.metz.giswork@gmail.com> wrote:

On Thu, Mar 7, 2019 at 6:35 PM Markus Neteler <neteler@osgeo.org> wrote:

Hi,

On Sat, Feb 16, 2019 at 12:28 AM Jamille Haarloo <j.r.haarloo@gmail.com> wrote:

Dear Grass community,

I don’t have any success with removal of columns from a vector file I am working with, while adding columns has not been a problem.

output:
v.db.dropcolumn map=nvTrainingset_test2019_clean@LUP1 columns=code
ERROR: Error while executing: ‘CREATE TEMPORARY TABLE nvTrainingset_test2019_clean_backup(cat INTEGER, compact_circle DOUBLE PRECISION, DV2_mean DOUBLE PRECISION, DV2_stddev DOUBLE PRECISION, DV2_variance DOUBLE PRECISION, DV2_coeff_var DOUBLE PRECISION, DV2_first_quart DOUBLE PRECISION, DV2_median DOUBLE PRECISION, DV2_third_quart DOUBLE PRECISION, DV2_perc_90 DOUBLE PRECISION, DV4_mean DOUBLE PRECISION, DV4_stddev DOUBLE PRECISION, DV4_variance DOUBLE PRECISION, DV4_coeff_var DOUBLE PRECISION, DV4_first_quart DOUBLE PRECISION, DV4_median DOUBLE PRECISION, DV4_third_quart DOUBLE PRECISION, DV4_perc_90 DOUBLE PRECISION, IDM2_mean DOUBLE PRECISION, IDM2_stddev DOUBLE PRECISION, IDM2_variance DOUBLE PRECISION, IDM2_coeff_var DOUBLE PRECISION, IDM2_first_quart DOUBLE PRECISION, IDM2_median DOUBLE PRECISION, IDM2_third_quart DOUBLE PRECISION, IDM2_perc_90 DOUBLE PRECISION, IDM4_mean DOUBLE PRECISION, IDM4_stddev DOUBLE PRECISION, IDM4_variance DOUBLE PRECISION, IDM4_coeff_var DOUBLE PRECISION, IDM4_first_quart DOUBLE PRECISION, IDM4_median DOUBLE PRECISION, IDM4_third_quart DOUBLE PRECISION, IDM4_perc_90 DOUBLE PRECISION, W2_mean DOUBLE PRECISION, W2_stddev DOUBLE PRECISION, W2_variance DOUBLE PRECISION, W2_coeff_var DOUBLE PRECISION, W2_first_quart DOUBLE PRECISION, W2_median DOUBLE PRECISION, W2_third_quart DOUBLE PRECISION, W2_perc_90 DOUBLE PRECISION, W4_mean DOUBLE PRECISION, W4_stddev DOUBLE PRECISION, W4_variance DOUBLE PRECISION, W4_coeff_var DOUBLE PRECISION, W4_first_quart DOUBLE PRECISION, W4_median DOUBLE PRECISION, W4_third_quart DOUBLE PRECISION, W4_perc_90 DOUBLE PRECISION, neighbors_count DOUBLE PRECISION, compact_circle_nbrmean DOUBLE PRECISION, compact_circle_nbrstddev DOUBLE PRECISION, DV2_mean_nbrmean DOUBLE PRECISION, DV2_mean_nbrstddev DOUBLE PRECISION, DV2_stddev_nbrmean DOUBLE PRECISION, DV2_stddev_nbrstddev DOUBLE PRECISION, DV2_variance_nbrmean DOUBLE PRECISION, DV2_variance_nbrstddev DOUBLE PRECISION, DV2_coeff_var_nbrmean DOUBLE PRECISION, DV2_coeff_var_nbrstddev DOUBLE PRECISION, DV2_first_quart_nbrmean DOUBLE PRECISION, DV2_first_quart_nbrstddev DOUBLE PRECISION, DV2_median_nbrmean DOUBLE PRECISION, DV2_median_nbrstddev DOUBLE PRECISION, DV2_third_quart_nbrmean DOUBLE PRECISION, DV2_third_quart_nbrstddev DOUBLE PRECISION, DV2_perc_90_nbrmean DOUBLE PRECISION, DV2_perc_90_nbrstddev DOUBLE PRECISION, DV4_mean_nbrmean DOUBLE PRECISION, DV4_mean_nbrstddev DOUBLE PRECISION, DV4_stddev_nbrmean DOUBLE PRECISION, DV4_stddev_nbrstddev DOUBLE PRECISION, DV4_variance_nbrmean DOUBLE PRECISION, DV4_variance_nbrstddev DOUBLE PRECISION, DV4_coeff_var_nbrmean DOUBLE PRECISION, DV4_coeff_var_nbrstddev DOUBLE PRECISION, DV4_first_quart_nbrmean DOUBLE PRECISION, DV4_first_quart_nbrstddev DOUBLE PRECISION, DV4_median_nbrmean DOUBLE PRECISION, DV4_median_nbrstddev DOUBLE PRECISION, DV4_third_quart_nbrmean DOUBLE PRECISION, DV4_third_quart_nbrstddev DOUBLE PRECISION, DV4_perc_90_nbrmean DOUBLE PRECISION, DV4_perc_90_nbrstddev DOUBLE PRECISION, IDM2_mean_nbrmean DOUBLE PRECISION, IDM2_mean_nbrstddev DOUBLE PRECISION, IDM2_stddev_nbrmean DOUBLE PRECISION, IDM2_stddev_nbrstddev DOUBLE PRECISION, IDM2_variance_nbrmean DOUBLE PRECISION, IDM2_variance_nbrstddev DOUBLE PRECISION, IDM2_coeff_var_nbrmean DOUBLE PRECISION, IDM2_coeff_var_nbrstddev DOUBLE PRECISION, IDM2_first_quart_nbrmean DOUBLE PRECISION, IDM2_first_quart_nbrstddev DOUBLE PRECISION, IDM2_median_nbrmean DOUBLE PRECISION, IDM2_median_nbrstddev DOUBLE PRECISION, IDM2_third_quart_nbrmean DOUBLE PRECISION, IDM2_third_quart_nbrstddev DOUBLE PRECISION, IDM2_perc_90_nbrmean DOUBLE PRECISION, IDM2_perc_90_nbrstddev DOUBLE PRECISION, IDM4_mean_nbrmean DOUBLE PRECISION, IDM4_mean_nbrstddev DOUBLE PRECISION, IDM4_stddev_nbrmean DOUBLE PRECISION, IDM4_stddev_nbrstddev DOUBLE PRECISION, IDM4_variance_nbrmean DOUBLE PRECISION, IDM4_variance_nbrstddev DOUBLE PRECISION, IDM4_coeff_var_nbrmean DOUBLE PRECISION, IDM4_coeff_var_nbrstddev DOUBLE PRECISION, IDM4_first_quart_nbrmean DOUBLE PRECISION, IDM4_first_quart_nbrstddev DOUBLE PRECISION, IDM4_median_n
brmean DOUBLE PRECISION, IDM4_median_nbrstddev DOUBLE’
ERROR: Deleting column failed

Any suggestions?

I used “wc -c” to count the length of the string: it is 4096 characters.

Which DB driver do you use? It seems to be a limitation in the driver
communication, i.e. the buffer is limited.

The db SQL buffer has been enlarged in trunk r74189 and relbr76 r74190.

Please test!

Markus M

Markus

grass-user mailing list
grass-user@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/grass-user