title: PostGIS OSM query
body: <p>I am new in Geo problems and need to ask about using PostGIS.
  I imported OpenStreetMap data through osmosis into PgSQL and I need to query this data.</p>
  
  <p>Essentially I have location from GPS and I need to get just all tags of Nodes, Ways and Areas that are at least from part within some distance from me (lets say 100 meters).</p>
  
  <p>I do not really know where to start.</p>
  
  <p>Thanks. </p>