Import large CSV file into PostGIS

You are almost there but I think the problem might be the table you are loading into.

You must have already had a table created in PostGIS with the correct column types

For example

CREATE TABLE nycdata (
    BOROUGH varchar,
    BLOCK varch,
    DATE date,
    VERSION numeric);

But you need to match the column type with the same type of data in the CSV.

You can see all the Data Types here http://www.postgresql.org/docs/9.1/static/datatype.html

Once you have created the table you can then use the original command

COPY nycdata FROM '/Users/macbook/data.csv' DELIMITERS ',' CSV HEADER;

You will then need to create indexes and a geometry

This can also be done with GDAL using a .vrt file, although it can be memory intensive.

You vrt would look like:

<OGRVRTDataSource> 
  <OGRVRTLayer name="feature_name"> 
    <SrcDataSource>your_csv.csv</SrcDataSource> 
    <GeometryType>wkbPoint</GeometryType> 
    <LayerSRS>EPSG:27700</LayerSRS> 
    <GeometryField encoding="PointFromColumns" x="Eastings" y="Northings"/> 
  </OGRVRTLayer> 
</OGRVRTDataSource>

Then simply:

ogr2ogr -progress -nln table_name_doesnt_need_to_exist -skipfailures  PostgreSQL PG:"dbname='dbname' host='localhost' port='5432'  user='username' password='password'" vrt_filename.vrt

For a full guide see:

Loading CSV OS CodePoint Data into PostGIS