FAILING attempt to make echange.reserve use taler_amountfail-amount

Fails with

> TALER_PREFIX=/usr/local ./test-exchangedb-postgres
2023-07-28T19:02:25.150845+0200 /home/oec/projects/taler/exchange/src/exchangedb/.libs/test-exchangedb-postgres-2559159 WARNING Could not run PSQL on file /usr/local/share/taler//sql/exchange/drop.sql: psql exit code was 3
2023-07-28T19:02:32.488085+0200 pq-2559159 ERROR Query `call_withdraw' failed with result: invalid input syntax for type bigint:
"(1,1000)"/(null)/ERROR:  invalid input syntax for type bigint: "(1,1000)"
CONTEXT:  PL/pgSQL function exchange_do_withdraw(bytea,taler_amount,bytea,bytea,bytea,bytea,bytea,bigint,bigint,boolean) line 23 at SQL statement
/PGRES_FATAL_ERROR/ERROR:  invalid input syntax for type bigint: "(1,1000)"
CONTEXT:  PL/pgSQL function exchange_do_withdraw(bytea,taler_amount,bytea,bytea,bytea,bytea,bytea,bigint,bigint,boolean) line 23 at SQL statement
2023-07-28T19:02:32.488146+0200 /home/oec/projects/taler/exchange/src/exchangedb/.libs/test-exchangedb-postgres-2559159 ERROR Assertion failed at test_exchangedb.c:1428.

1 files changed, 2 insertions, 4 deletions

diff --git a/src/exchangedb/exchange_do_age_withdraw.sql b/src/exchangedb/exchange_do_age_withdraw.sql
index ce257a8d..756c0085 100644
--- a/src/exchangedb/exchange_do_age_withdraw.sql
+++ b/src/exchangedb/exchange_do_age_withdraw.sql
@@ -50,8 +50,7 @@ BEGIN
 --         wire_targets by wire_target_h_payto
 
 SELECT
-   current_balance_val
-  ,current_balance_frac
+   current_balance
   ,gc_date
   ,birthday
  INTO
@@ -126,8 +125,7 @@ min_reserve_gc=GREATEST(min_reserve_gc,reserve_gc);
 -- Update reserve balance.
 UPDATE reserves SET
   gc_date=min_reserve_gc
- ,current_balance_val=new_balance.val
- ,current_balance_frac=new_balance.frac
+ ,current_balance=new_balance
 WHERE
   reserves.reserve_pub=rpub;