+ if ($aCMDResult['drop'])
+ {
+ // The implementation is potentially a bit dangerous because it uses
+ // a positive selection of tables to keep, and deletes everything else.
+ // Including any tables that the unsuspecting user might have manually
+ // created. USE AT YOUR OWN PERIL.
+ $bDidSomething = true;
+
+ // tables we want to keep. everything else goes.
+ $aKeepTables = array(
+ "*columns",
+ "import_polygon_*",
+ "import_status",
+ "place_addressline",
+ "location_property*",
+ "placex",
+ "search_name",
+ "seq_*",
+ "word",
+ "query_log",
+ "new_query_log",
+ "gb_postcode",
+ "spatial_ref_sys",
+ "country_name",
+ "place_classtype_*"
+ );
+
+ $oDB =& getDB();
+ $aDropTables = array();
+ $aHaveTables = $oDB->getCol("SELECT tablename FROM pg_tables WHERE schemaname='public'");
+ if (PEAR::isError($aHaveTables))
+ {
+ fail($aPartitions->getMessage());
+ }
+ foreach($aHaveTables as $sTable)
+ {
+ $bFound = false;
+ foreach ($aKeepTables as $sKeep)
+ {
+ if (fnmatch($sKeep, $sTable))
+ {
+ $bFound = true;
+ break;
+ }
+ }
+ if (!$bFound) array_push($aDropTables, $sTable);
+ }
+
+ foreach ($aDropTables as $sDrop)
+ {
+ if ($aCMDResult['verbose']) echo "dropping table $sDrop\n";
+ @pg_query($oDB->connection, "DROP TABLE $sDrop CASCADE");
+ // ignore warnings/errors as they might be caused by a table having
+ // been deleted already by CASCADE
+ }
+
+ if (!is_null(CONST_Osm2pgsql_Flatnode_File))
+ {
+ if ($aCMDResult['verbose']) echo "deleting ".CONST_Osm2pgsql_Flatnode_File."\n";
+ unlink(CONST_Osm2pgsql_Flatnode_File);
+ }
+ }
+