Android Bug - Solution

If, whilst building and deploying an Android app, the following error rears it´s unwanted head in the console - INSTALL_PARSE_FAILED_NO_CERTIFICATES, then many solutions exist on the web. None of them worked for me in isolation!!! In the end I had to combine two of them, - change a filename in the res folder AND then delete the bin folder (to force a re-build). then change the filename back to what it was called before. Then this error disappeared........

Importing OSM data to PostGIS 2.0

This is a note for myself, and details the lessons I have learned whilst trying to load an .osm file into a PostGIS 2.0 database.

1. don´t use osmosis, due to the fact it seems to be rarely updated and suffers from this problem which I could not solve - http://wiki.openstreetmap.org/wiki/64-bit_Identifiers.

2. osm2pgsql is much better, but for it to work with PostGIS 2.0 I had to rename the "st_astext(geometry)" function to "astext(geometry)" as otherwise it throws an error. (the old filename refers to a previous version of Postgis that used different naming conventions)

3. despite using the --password and -W flag, the postgis datbase threw an error as it required the password. Therefore I had to change the 'md5' permission for a local user to 'trust' so that no password was necessary in the pg_hba.conf file.

4. I had to paste the following code in SQL to create an operator that was missing in the PostGIS 2.0 distribution


CREATE OPERATOR CLASS gist_geometry_ops
FOR TYPE geometry USING GIST AS
STORAGE box2df,
OPERATOR        1        <<  ,
OPERATOR        2        &< ,
OPERATOR        3        &&  ,
OPERATOR        4        &> ,
OPERATOR        5        >> ,
OPERATOR        6        ~= ,
OPERATOR        7        ~ ,
OPERATOR        8        @ ,
OPERATOR        9        &<| ,
OPERATOR        10       <<| ,
OPERATOR        11       |>> ,
OPERATOR        12       |&> ,

OPERATOR        13       <-> FOR ORDER BY pg_catalog.float_ops,
OPERATOR        14       <#> FOR ORDER BY pg_catalog.float_ops,
FUNCTION        8        geometry_gist_distance_2d (internal, geometry, int4),

FUNCTION        1        geometry_gist_consistent_2d (internal, geometry, int4),
FUNCTION        2        geometry_gist_union_2d (bytea, internal),
FUNCTION        3        geometry_gist_compress_2d (internal),
FUNCTION        4        geometry_gist_decompress_2d (internal),
FUNCTION        5        geometry_gist_penalty_2d (internal, internal, internal),
FUNCTION        6        geometry_gist_picksplit_2d (internal, internal),
FUNCTION        7        geometry_gist_same_2d (geom1 geometry, geom2 geometry, internal);