-remove dead index, add comment on live index

2 files changed, 11 insertions, 12 deletions

diff --git a/src/exchangedb/0002-reserves_in.sql b/src/exchangedb/0002-reserves_in.sql
index 1dfc5db69..197a815b3 100644
--- a/src/exchangedb/0002-reserves_in.sql
+++ b/src/exchangedb/0002-reserves_in.sql
@@ -83,22 +83,18 @@ BEGIN
     'ON ' || table_name || ' '
     '(reserve_in_serial_id);'
   );
-  -- FIXME: where do we need this index? Can we do better?
-  EXECUTE FORMAT (
-    'CREATE INDEX ' || table_name || '_by_exch_accnt_section_execution_date_idx '
-    'ON ' || table_name || ' '
-    '(exchange_account_section '
-    ',execution_date'
-    ');'
-  );
-  -- FIXME: where do we need this index? Can we do better?
   EXECUTE FORMAT (
     'CREATE INDEX ' || table_name || '_by_exch_accnt_reserve_in_serial_id_idx '
     'ON ' || table_name || ' '
     '(exchange_account_section'
-    ',reserve_in_serial_id DESC'
+    ',reserve_in_serial_id ASC'
     ');'
   );
+  EXECUTE FORMAT (
+    'COMMENT ON INDEX ' || table_name || '_by_exch_accnt_reserve_in_serial_id_idx '
+    'IS ' || quote_literal ('for pg_select_reserves_in_above_serial_id_by_account') || ';'
+  ); 
+
 END
 $$;
 
diff --git a/src/exchangedb/pg_select_reserves_in_above_serial_id_by_account.c b/src/exchangedb/pg_select_reserves_in_above_serial_id_by_account.c
index daedb3f8b..1c7bc15a0 100644
--- a/src/exchangedb/pg_select_reserves_in_above_serial_id_by_account.c
+++ b/src/exchangedb/pg_select_reserves_in_above_serial_id_by_account.c
@@ -24,6 +24,8 @@
 #include "taler_pq_lib.h"
 #include "pg_select_reserves_in_above_serial_id_by_account.h"
 #include "pg_helper.h"
+
+
 /**
  * Closure for #reserves_in_serial_helper_cb().
  */
@@ -152,8 +154,9 @@ TEH_PG_select_reserves_in_above_serial_id_by_account (
            "   USING (reserve_pub)"
            " JOIN wire_targets"
            "   ON (wire_source_h_payto = wire_target_h_payto)"
-           " WHERE reserve_in_serial_id>=$1 AND exchange_account_section=$2"
-           " ORDER BY reserve_in_serial_id;");
+           " WHERE reserve_in_serial_id>=$1"
+           "   AND exchange_account_section=$2"
+           " ORDER BY reserve_in_serial_id ASC;");
   qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
                                              "audit_reserves_in_get_transactions_incr_by_account",
                                              params,