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I'm having trouble when trying to upload a shape file in postgresql/PostGIS. There's a field with type "date", but actually there'r two elements with content : '20012060' and it returns ERROR when I start shp2pgsql. Is there any way to change all fields from dbf to character varying, using shp2pgsql or any other extension from PostGIS?

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  • What does SHOW DATESTYLE; in Postgres tell you? My guess is that you will need to set your datestyle on the input table to YMD, ie, SET datestyle = "ISO, YMD"; – John Powell Jun 5 '19 at 10:37
  • Actually, looking more closely, 20012060 is clearly not a date in any format. So, to answer your original question, one of the switches to shp2pgsql is -a, which means, append. So, you can create the table with the problem columns defined as varchar and then run shp2pgsql -a ..... – John Powell Jun 5 '19 at 10:45
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Is using ogr2ogr an option? If so you should be able to use COLUMN_TYPES option, see the help section for PostgreSQL driver.

Example of importing shape to postgis with the integer field "id" imported as text

ogr2ogr -f "PostgreSQL" PG:"host=localhost user=postgres dbname=testdb password=somepassword" "/home/bera/GIS/data/test/polys.shp" -lco COLUMN_TYPES="id=text"

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Data type of columns not specified seem to be set automatically, for example the "sometext" column.

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  • This doesn't exactly answer the original question, as valid an approach as it may be. – John Powell Jun 5 '19 at 10:46

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