Exporting geopandas dataframe into postgis/postgre












0















I would like to export a geopandas dataframe into postgis/postgre table.



My code to do that :



from sqlalchemy import create_engine
from geoalchemy2 import Geometry, WKTElement

engine = create_engine('postgresql://username:password@host:port/database')

baonotnull_test2['geometry'] = baonotnull_test2['geom2'].apply(lambda x: WKTElement(x.wkt, srid=2154))
#baonotnull_test2.drop('geom2', axis = 1, inplace = True) #axis : drop labels from the columns

baonotnull_test2.to_sql('bat_prediction_rf', engine, if_exists='replace', index=False,
dtype={'geometry': Geometry('MULTIPOLYGON', srid= 2154)})


I have the following error ;



ProgrammingError: (psycopg2.ProgrammingError) can't adapt type 'MultiPolygon'


Indeed, geom2 seems to be a POLYGON type instead of a MULTIPOLYGON type.



In the very beginning of my code, I imported a table from postgis :



baobat = gpd.read_postgis("SELECT * FROM p_baobat.bati_indifferencie_discrimination_sup WHERE (indiv_coll = 'individuel' OR (indiv_coll_arbitraire = 'individuel' AND indiv_coll != 'garages_autres'))", con = dbcon, geom_col = 'geom2')


geom2 is a multipolygon in the table p_baobat.bati_indifferencie_discrimination_sup, but it becomes a polygon when imported in Python.



What can I do?



Thanks for your help.










share|improve this question



























    0















    I would like to export a geopandas dataframe into postgis/postgre table.



    My code to do that :



    from sqlalchemy import create_engine
    from geoalchemy2 import Geometry, WKTElement

    engine = create_engine('postgresql://username:password@host:port/database')

    baonotnull_test2['geometry'] = baonotnull_test2['geom2'].apply(lambda x: WKTElement(x.wkt, srid=2154))
    #baonotnull_test2.drop('geom2', axis = 1, inplace = True) #axis : drop labels from the columns

    baonotnull_test2.to_sql('bat_prediction_rf', engine, if_exists='replace', index=False,
    dtype={'geometry': Geometry('MULTIPOLYGON', srid= 2154)})


    I have the following error ;



    ProgrammingError: (psycopg2.ProgrammingError) can't adapt type 'MultiPolygon'


    Indeed, geom2 seems to be a POLYGON type instead of a MULTIPOLYGON type.



    In the very beginning of my code, I imported a table from postgis :



    baobat = gpd.read_postgis("SELECT * FROM p_baobat.bati_indifferencie_discrimination_sup WHERE (indiv_coll = 'individuel' OR (indiv_coll_arbitraire = 'individuel' AND indiv_coll != 'garages_autres'))", con = dbcon, geom_col = 'geom2')


    geom2 is a multipolygon in the table p_baobat.bati_indifferencie_discrimination_sup, but it becomes a polygon when imported in Python.



    What can I do?



    Thanks for your help.










    share|improve this question

























      0












      0








      0








      I would like to export a geopandas dataframe into postgis/postgre table.



      My code to do that :



      from sqlalchemy import create_engine
      from geoalchemy2 import Geometry, WKTElement

      engine = create_engine('postgresql://username:password@host:port/database')

      baonotnull_test2['geometry'] = baonotnull_test2['geom2'].apply(lambda x: WKTElement(x.wkt, srid=2154))
      #baonotnull_test2.drop('geom2', axis = 1, inplace = True) #axis : drop labels from the columns

      baonotnull_test2.to_sql('bat_prediction_rf', engine, if_exists='replace', index=False,
      dtype={'geometry': Geometry('MULTIPOLYGON', srid= 2154)})


      I have the following error ;



      ProgrammingError: (psycopg2.ProgrammingError) can't adapt type 'MultiPolygon'


      Indeed, geom2 seems to be a POLYGON type instead of a MULTIPOLYGON type.



      In the very beginning of my code, I imported a table from postgis :



      baobat = gpd.read_postgis("SELECT * FROM p_baobat.bati_indifferencie_discrimination_sup WHERE (indiv_coll = 'individuel' OR (indiv_coll_arbitraire = 'individuel' AND indiv_coll != 'garages_autres'))", con = dbcon, geom_col = 'geom2')


      geom2 is a multipolygon in the table p_baobat.bati_indifferencie_discrimination_sup, but it becomes a polygon when imported in Python.



      What can I do?



      Thanks for your help.










      share|improve this question














      I would like to export a geopandas dataframe into postgis/postgre table.



      My code to do that :



      from sqlalchemy import create_engine
      from geoalchemy2 import Geometry, WKTElement

      engine = create_engine('postgresql://username:password@host:port/database')

      baonotnull_test2['geometry'] = baonotnull_test2['geom2'].apply(lambda x: WKTElement(x.wkt, srid=2154))
      #baonotnull_test2.drop('geom2', axis = 1, inplace = True) #axis : drop labels from the columns

      baonotnull_test2.to_sql('bat_prediction_rf', engine, if_exists='replace', index=False,
      dtype={'geometry': Geometry('MULTIPOLYGON', srid= 2154)})


      I have the following error ;



      ProgrammingError: (psycopg2.ProgrammingError) can't adapt type 'MultiPolygon'


      Indeed, geom2 seems to be a POLYGON type instead of a MULTIPOLYGON type.



      In the very beginning of my code, I imported a table from postgis :



      baobat = gpd.read_postgis("SELECT * FROM p_baobat.bati_indifferencie_discrimination_sup WHERE (indiv_coll = 'individuel' OR (indiv_coll_arbitraire = 'individuel' AND indiv_coll != 'garages_autres'))", con = dbcon, geom_col = 'geom2')


      geom2 is a multipolygon in the table p_baobat.bati_indifferencie_discrimination_sup, but it becomes a polygon when imported in Python.



      What can I do?



      Thanks for your help.







      python postgresql geopandas






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      asked Nov 16 '18 at 10:40









      PolluxPollux

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