Improve how indexes for PostGIS are shown in DB Manager

[qgib]

Author Name: Paolo Cavallini (@pcav) Original Redmine Issue: 6890 Affected QGIS version: 3.0.0 Redmine category:db_manager

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The indexes for all rasters are displayed in DB Manager as:

Name            Column(s)
basin_toscana_rast_gist ??? (#0)

while:

\\d basin_toscana_rast_gist
   Indice "public.basin_toscana_rast_gist"
    Colonna    |  Tipo  |     Definizione
---------------+--------+---------------------
 st_convexhull | box2df | st_convexhull(rast)
gist, per la tabella "public.basin_toscana"

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• easy_fix was configured as 0
• regression was configured as 0

[qgib]

Author Name: Paolo Cavallini (@pcav)

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Still true in Q3

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• description was changed from The indexes for all rasters are displayed in DB Manager as:

Name            Column(s)
basin_toscana_rast_gist ??? (#0)

while:

\\d basin_toscana_rast_gist
   Indice "public.basin_toscana_rast_gist"
    Colonna    |  Tipo  |     Definizione
---------------+--------+---------------------
 st_convexhull | box2df | st_convexhull(rast)
gist, per la tabella "public.basin_toscana"

to The indexes for all rasters are displayed in DB Manager as:

Name            Column(s)
basin_toscana_rast_gist ??? (#0)

while:

\\d basin_toscana_rast_gist
   Indice "public.basin_toscana_rast_gist"
    Colonna    |  Tipo  |     Definizione
---------------+--------+---------------------
 st_convexhull | box2df | st_convexhull(rast)
gist, per la tabella "public.basin_toscana"

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• version was changed from master to 3.0.0