clean up intermediate tables earlier with --drop

When --drop is given, we can remove all node geometry information
already after the import with osm2pgsql. Also drop all unnecessary
tables before creating the final indices.

lib/setup/SetupClass.php

@@ -16,6 +16,7 @@ class SetupFunctions
     protected $bEnableDiffUpdates;
     protected $bEnableDebugStatements;
     protected $bNoPartitions;
+    protected $bDrop;
     protected $oDB = null;
 
     public function __construct(array $aCMDResult)
@@ -74,6 +75,8 @@ class SetupFunctions
         } else {
             $this->bEnableDiffUpdates = false;
         }
+
+        $this->bDrop = $aCMDResult['drop'];
     }
 
     public function createDB()
@@ -208,6 +211,11 @@ class SetupFunctions
         if (!$this->sIgnoreErrors && !$this->oDB->getRow('select * from place limit 1')) {
             fail('No Data');
         }
+
+        if ($this->bDrop) {
+            $this->dropTable('planet_osm_nodes');
+            $this->removeFlatnodeFile();
+        }
     }
 
     public function createFunctions()
@@ -576,6 +584,9 @@ class SetupFunctions
         }
 
         $sTemplate = file_get_contents(CONST_BasePath.'/sql/indices.src.sql');
+        if (!$this->bDrop) {
+            $sTemplate .= file_get_contents(CONST_BasePath.'/sql/indices_updates.src.sql');
+        }
         if (!$this->dbReverseOnly()) {
             $sTemplate .= file_get_contents(CONST_BasePath.'/sql/indices_search.src.sql');
         }
@@ -655,6 +666,11 @@ class SetupFunctions
             $this->dropTable($sDrop);
         }
 
+        $this->removeFlatnodeFile();
+    }
+
+    private function removeFlatnodeFile()
+    {
         if (!is_null(CONST_Osm2pgsql_Flatnode_File) && CONST_Osm2pgsql_Flatnode_File) {
             if (file_exists(CONST_Osm2pgsql_Flatnode_File)) {
                 if ($this->bVerbose) echo 'Deleting '.CONST_Osm2pgsql_Flatnode_File."\n";

sql/indices.src.sql

@@ -8,7 +8,6 @@ CREATE INDEX CONCURRENTLY idx_place_addressline_address_place_id on place_addres
 DROP INDEX CONCURRENTLY IF EXISTS idx_placex_rank_search;
 CREATE INDEX CONCURRENTLY idx_placex_rank_search ON placex USING BTREE (rank_search) {ts:search-index};
 CREATE INDEX CONCURRENTLY idx_placex_rank_address ON placex USING BTREE (rank_address) {ts:search-index};
-CREATE INDEX CONCURRENTLY idx_placex_pendingsector ON placex USING BTREE (rank_search,geometry_sector) {ts:address-index} where indexed_status > 0;
 CREATE INDEX CONCURRENTLY idx_placex_parent_place_id ON placex USING BTREE (parent_place_id) {ts:search-index} where parent_place_id IS NOT NULL;
 
 CREATE INDEX CONCURRENTLY idx_placex_geometry_reverse_lookupPoint
@@ -29,14 +28,8 @@ CREATE INDEX CONCURRENTLY idx_placex_geometry_reverse_placeNode
 
 GRANT SELECT ON table country_osm_grid to "{www-user}";
 
-CREATE INDEX CONCURRENTLY idx_location_area_country_place_id ON location_area_country USING BTREE (place_id) {ts:address-index};
-
 CREATE INDEX CONCURRENTLY idx_osmline_parent_place_id ON location_property_osmline USING BTREE (parent_place_id) {ts:search-index};
 CREATE INDEX CONCURRENTLY idx_osmline_parent_osm_id ON location_property_osmline USING BTREE (osm_id) {ts:search-index};
 
-DROP INDEX CONCURRENTLY IF EXISTS place_id_idx;
-CREATE UNIQUE INDEX CONCURRENTLY idx_place_osm_unique on place using btree(osm_id,osm_type,class,type) {ts:address-index};
-
-
 CREATE UNIQUE INDEX CONCURRENTLY idx_postcode_id ON location_postcode USING BTREE (place_id) {ts:search-index};
 CREATE INDEX CONCURRENTLY idx_postcode_postcode ON location_postcode USING BTREE (postcode) {ts:search-index};

sql/indices_updates.src.sql

@@ -0,0 +1,9 @@
+-- Indices used only during search and update.
+-- These indices are created only after the indexing process is done.
+
+CREATE INDEX CONCURRENTLY idx_placex_pendingsector ON placex USING BTREE (rank_search,geometry_sector) {ts:address-index} where indexed_status > 0;
+
+CREATE INDEX CONCURRENTLY idx_location_area_country_place_id ON location_area_country USING BTREE (place_id) {ts:address-index};
+
+DROP INDEX CONCURRENTLY IF EXISTS place_id_idx;
+CREATE UNIQUE INDEX CONCURRENTLY idx_place_osm_unique on place using btree(osm_id,osm_type,class) {ts:address-index};

utils/setup.php

@@ -138,6 +138,11 @@ if ($aCMDResult['index'] || $aCMDResult['all']) {
     $oSetup->index($aCMDResult['index-noanalyse']);
 }
 
+if ($aCMDResult['drop']) {
+    $bDidSomething = true;
+    $oSetup->drop($aCMDResult);
+}
+
 if ($aCMDResult['create-search-indices'] || $aCMDResult['all']) {
     $bDidSomething = true;
     $oSetup->createSearchIndices();
@@ -148,11 +153,6 @@ if ($aCMDResult['create-country-names'] || $aCMDResult['all']) {
     $oSetup->createCountryNames($aCMDResult);
 }
 
-if ($aCMDResult['drop']) {
-    $bDidSomething = true;
-    $oSetup->drop($aCMDResult);
-}
-
 // ******************************************************
 // If we did something, repeat the warnings
 if (!$bDidSomething) {