clean up query logging

- remove query_log table, keeping only new_query_log
- drop unused import_npi_log table
- disable DB logging per default
- use file logging structure from osm.org

sql/tables.sql

@@ -13,29 +13,6 @@ CREATE TABLE import_osmosis_log (
   event text
   );
 
-drop table if exists import_npi_log;
-CREATE TABLE import_npi_log (
-  npiid integer,
-  batchend timestamp,
-  batchsize integer,
-  starttime timestamp,
-  endtime timestamp,
-  event text
-  );
-
---drop table IF EXISTS query_log;
-CREATE TABLE query_log (
-  starttime timestamp,
-  query text,
-  ipaddress text,
-  endtime timestamp,
-  results integer
-  );
-CREATE INDEX idx_query_log ON query_log USING BTREE (starttime);
-GRANT SELECT ON query_log TO "{www-user}" ;
-GRANT INSERT ON query_log TO "{www-user}" ;
-GRANT UPDATE ON query_log TO "{www-user}" ;
-
 CREATE TABLE new_query_log (
   type text,
   starttime timestamp,
@@ -43,6 +20,7 @@ CREATE TABLE new_query_log (
   useragent text,
   language text,
   query text,
+  searchterm text,
   endtime timestamp,
   results integer,
   format text,
@@ -56,9 +34,6 @@ GRANT SELECT ON new_query_log TO "{www-user}" ;
 GRANT SELECT ON TABLE country_name TO "{www-user}";
 GRANT SELECT ON TABLE gb_postcode TO "{www-user}";
 
-create view vw_search_query_log as SELECT substr(query, 1, 50) AS query, starttime, endtime - starttime AS duration, substr(useragent, 1, 20) as 
-useragent, language, results, ipaddress FROM new_query_log WHERE type = 'search' ORDER BY starttime DESC;
-
 drop table IF EXISTS word;
 CREATE TABLE word (
   word_id INTEGER,