Set some special sqlite pragmas to speed up import

diff --git a/src/osm-db-import.c b/src/osm-db-import.c
index cec035b655ed62954568461d6dee4c1b54f2efe8..45aa325839d31ec15dd90e0ce2fc6ac6526643aa 100644 (file)
--- a/src/osm-db-import.c
+++ b/src/osm-db-import.c
@@ -1754,6 +1754,12 @@ if (db_connect(&db, database)!=TRUE) {
        return FALSE;
 }
 
+/* Set some sqlite PRAGMAs to speed up import */
+sqlite3_exec(db, "PRAGMA cache_size=16000;", NULL, NULL, NULL);
+sqlite3_exec(db, "PRAGMA locking_mode=EXCLUSIVE;", NULL, NULL, NULL);
+sqlite3_exec(db, "PRAGMA journal_mode=PERSIST;", NULL, NULL, NULL);
+sqlite3_exec(db, "PRAGMA synchronous=OFF;", NULL, NULL, NULL);
+
 if (!osm_db_create(db)) {
        g_printerr("Failed to create osm tables or indexes\n");
        return FALSE;