FAILING attempt to make echange.reserve use taler_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.
Merge branch 'new-amount', lookup OIDs for composites
2023-07-28 19:01:57 +02:00 · 2023-07-28 16:22:48 +02:00 · 2023-07-28 16:21:08 +02:00 · 2023-07-28 16:19:21 +02:00
31 changed files with 350 additions and 344 deletions
--- a/src/auditor/.gitignore
+++ b/src/auditor/.gitignore
@ -24,3 +24,5 @@ taler-auditor-test.sqlite3
 libeufin-nexus.pid
 libeufin-sandbox.pid
 taler-helper-auditor-purses
+generate-kyc-basedb.conf.edited
+generate-auditor-basedb.conf.edited
--- a/src/exchangedb/0002-reserves.sql
+++ b/src/exchangedb/0002-reserves.sql
@ -27,8 +27,7 @@ BEGIN
    'CREATE TABLE %I'
      '(reserve_uuid BIGINT GENERATED BY DEFAULT AS IDENTITY'
      ',reserve_pub BYTEA PRIMARY KEY CHECK(LENGTH(reserve_pub)=32)'
-      ',current_balance_val INT8 NOT NULL DEFAULT(0)'
-      ',current_balance_frac INT4 NOT NULL DEFAULT(0)'
+      ',current_balance taler_amount NOT NULL DEFAULT (0, 0)'
      ',purses_active INT8 NOT NULL DEFAULT(0)'
      ',purses_allowed INT8 NOT NULL DEFAULT(0)'
      ',birthday INT4 NOT NULL DEFAULT(0)'
@ -52,7 +51,7 @@ BEGIN
  );
  PERFORM comment_partitioned_column(
     'Current balance remaining with the reserve.'
-    ,'current_balance_val'
+    ,'current_balance'
    ,table_name
    ,partition_suffix
  );
@ -109,8 +108,7 @@ BEGIN
    'CREATE INDEX ' || table_name || '_by_expiration_index '
    'ON ' || table_name || ' '
    '(expiration_date'
-    ',current_balance_val'
-    ',current_balance_frac'
+    ',current_balance'
    ');'
  );
  EXECUTE FORMAT (
--- 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;

--- a/src/exchangedb/exchange_do_batch_reserves_update.sql
+++ b/src/exchangedb/exchange_do_batch_reserves_update.sql
@ -18,8 +18,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch_reserves_update(
  IN in_reserve_pub BYTEA,
  IN in_expiration_date INT8,
  IN in_wire_ref INT8,
-  IN in_credit_val INT8,
-  IN in_credit_frac INT4,
+  IN in_credit taler_amount,
  IN in_exchange_account_name VARCHAR,
  IN in_wire_source_h_payto BYTEA,
  IN in_notify text,
@ -38,8 +37,8 @@ BEGIN
    VALUES
    (in_reserve_pub
    ,in_wire_ref
-    ,in_credit_val
-    ,in_credit_frac
+    ,in_credit.val
+    ,in_credit.frac
    ,in_exchange_account_name
    ,in_wire_source_h_payto
    ,in_expiration_date)
@ -50,15 +49,15 @@ BEGIN
    out_duplicate = FALSE;
    UPDATE reserves
      SET
-         current_balance_frac = current_balance_frac+in_credit_frac
+         current_balance.frac = current_balance.frac+in_credit.frac
           - CASE
-             WHEN current_balance_frac + in_credit_frac >= 100000000
+             WHEN current_balance.frac + in_credit.frac >= 100000000
               THEN 100000000
             ELSE 1
             END
-            ,current_balance_val = current_balance_val+in_credit_val
+            ,current_balance.val = current_balance.val+in_credit.val
           + CASE
-             WHEN current_balance_frac + in_credit_frac >= 100000000
+             WHEN current_balance.frac + in_credit.frac >= 100000000
               THEN 1
             ELSE 0
             END
--- a/src/exchangedb/exchange_do_batch_withdraw.sql
+++ b/src/exchangedb/exchange_do_batch_withdraw.sql
@ -17,8 +17,7 @@
 -- @author Özgür Kesim

 CREATE OR REPLACE FUNCTION exchange_do_batch_withdraw(
-  IN amount_val INT8,
-  IN amount_frac INT4,
+  IN amount taler_amount,
  IN rpub BYTEA,
  IN now INT8,
  IN min_reserve_gc INT8,
@ -32,8 +31,7 @@ LANGUAGE plpgsql
 AS $$
 DECLARE
  reserve_gc INT8;
-  reserve_val INT8;
-  reserve_frac INT4;
+  reserve taler_amount;
  reserve_birthday INT4;
  not_before date;
 BEGIN
@ -45,14 +43,14 @@ BEGIN


 SELECT
-   current_balance_val
-  ,current_balance_frac
+   current_balance.val
+  ,current_balance.frac
  ,gc_date
  ,birthday
  ,reserve_uuid
 INTO
-   reserve_val
-  ,reserve_frac
+   reserve.val
+  ,reserve.frac
  ,reserve_gc
  ,reserve_birthday
  ,ruuid
@ -92,21 +90,21 @@ ELSE
 END IF;

 -- Check reserve balance is sufficient.
-IF (reserve_val > amount_val)
+IF (reserve.val > amount.val)
 THEN
-  IF (reserve_frac >= amount_frac)
+  IF (reserve.frac >= amount.frac)
  THEN
-    reserve_val=reserve_val - amount_val;
-    reserve_frac=reserve_frac - amount_frac;
+    reserve.val=reserve.val - amount.val;
+    reserve.frac=reserve.frac - amount.frac;
  ELSE
-    reserve_val=reserve_val - amount_val - 1;
-    reserve_frac=reserve_frac + 100000000 - amount_frac;
+    reserve.val=reserve.val - amount.val - 1;
+    reserve.frac=reserve.frac + 100000000 - amount.frac;
  END IF;
 ELSE
-  IF (reserve_val = amount_val) AND (reserve_frac >= amount_frac)
+  IF (reserve.val = amount.val) AND (reserve.frac >= amount.frac)
  THEN
-    reserve_val=0;
-    reserve_frac=reserve_frac - amount_frac;
+    reserve.val=0;
+    reserve.frac=reserve.frac - amount.frac;
  ELSE
    balance_ok=FALSE;
    RETURN;
@ -119,8 +117,7 @@ min_reserve_gc=GREATEST(min_reserve_gc,reserve_gc);
 -- Update reserve balance.
 UPDATE reserves SET
  gc_date=min_reserve_gc
- ,current_balance_val=reserve_val
- ,current_balance_frac=reserve_frac
+ ,current_balance=reserve
 WHERE
  reserves.reserve_pub=rpub;

@ -129,6 +126,6 @@ balance_ok=TRUE;

 END $$;

-COMMENT ON FUNCTION exchange_do_batch_withdraw(INT8, INT4, BYTEA, INT8, INT8, BOOLEAN)
+COMMENT ON FUNCTION exchange_do_batch_withdraw(taler_amount, BYTEA, INT8, INT8, BOOLEAN)
  IS 'Checks whether the reserve has sufficient balance for a withdraw operation (or the request is repeated and was previously approved) and that age requirements are formally met. If so updates the database with the result. Excludes storing the planchets.';

--- a/src/exchangedb/exchange_do_gc.sql
+++ b/src/exchangedb/exchange_do_gc.sql
@ -21,15 +21,10 @@ LANGUAGE plpgsql
 AS $$
 DECLARE
  reserve_uuid_min INT8; -- minimum reserve UUID still alive
-DECLARE
  melt_min INT8; -- minimum melt still alive
-DECLARE
  coin_min INT8; -- minimum known_coin still alive
-DECLARE
  deposit_min INT8; -- minimum deposit still alive
-DECLARE
  reserve_out_min INT8; -- minimum reserve_out still alive
-DECLARE
  denom_min INT8; -- minimum denomination still alive
 BEGIN

@ -42,8 +37,8 @@ DELETE FROM exchange.wire_fee
 -- TODO: use closing fee as threshold?
 DELETE FROM exchange.reserves
  WHERE gc_date < in_now
-    AND current_balance_val = 0
-    AND current_balance_frac = 0;
+    AND current_balance.val = 0
+    AND current_balance.frac = 0;

 SELECT
     reserve_out_serial_id
--- a/src/exchangedb/exchange_do_history_request.sql
+++ b/src/exchangedb/exchange_do_history_request.sql
@ -54,23 +54,23 @@ BEGIN
  -- Update reserve balance.
  UPDATE exchange.reserves
   SET
-    current_balance_frac=current_balance_frac-in_history_fee_frac
+    current_balance.frac=current_balance.frac-in_history_fee_frac
       + CASE
-         WHEN current_balance_frac < in_history_fee_frac
+         WHEN current_balance.frac < in_history_fee_frac
         THEN 100000000
         ELSE 0
         END,
-    current_balance_val=current_balance_val-in_history_fee_val
+    current_balance.val=current_balance.val-in_history_fee_val
       - CASE
-         WHEN current_balance_frac < in_history_fee_frac
+         WHEN current_balance.frac < in_history_fee_frac
         THEN 1
         ELSE 0
         END
  WHERE
    reserve_pub=in_reserve_pub
-    AND ( (current_balance_val > in_history_fee_val) OR
-          ( (current_balance_frac >= in_history_fee_frac) AND
-            (current_balance_val >= in_history_fee_val) ) );
+    AND ( (current_balance.val > in_history_fee_val) OR
+          ( (current_balance.frac >= in_history_fee_frac) AND
+            (current_balance.val >= in_history_fee_val) ) );

  IF NOT FOUND
  THEN
--- a/src/exchangedb/exchange_do_purse_deposit.sql
+++ b/src/exchangedb/exchange_do_purse_deposit.sql
@ -32,17 +32,10 @@ LANGUAGE plpgsql
 AS $$
 DECLARE
  was_merged BOOLEAN;
-DECLARE
  psi INT8; -- partner's serial ID (set if merged)
-DECLARE
-  my_amount_val INT8; -- total in purse
-DECLARE
-  my_amount_frac INT4; -- total in purse
-DECLARE
+  my_amount taler_amount; -- total in purse
  was_paid BOOLEAN;
-DECLARE
  my_in_reserve_quota BOOLEAN;
-DECLARE
  my_reserve_pub BYTEA;
 BEGIN

@ -174,8 +167,8 @@ SELECT
   ,amount_with_fee_frac
   ,in_reserve_quota
  INTO
-    my_amount_val
-   ,my_amount_frac
+    my_amount.val
+   ,my_amount.frac
   ,my_in_reserve_quota
  FROM exchange.purse_requests
  WHERE (purse_pub=in_purse_pub)
@ -231,14 +224,12 @@ ELSE
  -- This is a local reserve, update balance immediately.
  INSERT INTO reserves
    (reserve_pub
-    ,current_balance_frac
-    ,current_balance_val
+    ,current_balance
    ,expiration_date
    ,gc_date)
  VALUES
    (my_reserve_pub
-    ,my_amount_frac
-    ,my_amount_val
+    ,my_amount
    ,in_reserve_expiration
    ,in_reserve_expiration)
  ON CONFLICT DO NOTHING;
@ -248,15 +239,15 @@ ELSE
    -- Reserve existed, thus UPDATE instead of INSERT.
    UPDATE reserves
      SET
-       current_balance_frac=current_balance_frac+my_amount_frac
+       current_balance.frac=current_balance.frac+my_amount.frac
        - CASE
-          WHEN current_balance_frac + my_amount_frac >= 100000000
+          WHEN current_balance.frac + my_amount.frac >= 100000000
            THEN 100000000
          ELSE 0
          END
-      ,current_balance_val=current_balance_val+my_amount_val
+      ,current_balance.val=current.balance_val+my_amount.val
        + CASE
-          WHEN current_balance_frac + my_amount_frac >= 100000000
+          WHEN current_balance.frac + my_amount.frac >= 100000000
            THEN 1
          ELSE 0
          END
--- a/src/exchangedb/exchange_do_purse_merge.sql
+++ b/src/exchangedb/exchange_do_purse_merge.sql
@ -29,16 +29,9 @@ CREATE OR REPLACE FUNCTION exchange_do_purse_merge(
 LANGUAGE plpgsql
 AS $$
 DECLARE
-  my_amount_val INT8;
-DECLARE
-  my_amount_frac INT4;
-DECLARE
-  my_purse_fee_val INT8;
-DECLARE
-  my_purse_fee_frac INT4;
-DECLARE
+  my_amount taler_amount;
+  my_purse_fee taler_amount;
  my_partner_serial_id INT8;
-DECLARE
  my_in_reserve_quota BOOLEAN;
 BEGIN

@ -72,10 +65,10 @@ SELECT amount_with_fee_val
      ,purse_fee_val
      ,purse_fee_frac
      ,in_reserve_quota
-  INTO my_amount_val
-      ,my_amount_frac
-      ,my_purse_fee_val
-      ,my_purse_fee_frac
+  INTO my_amount.val
+      ,my_amount.frac
+      ,my_purse_fee.val
+      ,my_purse_fee.frac
      ,my_in_reserve_quota
  FROM exchange.purse_requests
  WHERE purse_pub=in_purse_pub
@ -196,23 +189,23 @@ ELSE
  -- This is a local reserve, update reserve balance immediately.

  -- Refund the purse fee, by adding it to the purse value:
-  my_amount_val = my_amount_val + my_purse_fee_val;
-  my_amount_frac = my_amount_frac + my_purse_fee_frac;
+  my_amount.val = my_amount.val + my_purse_fee.val;
+  my_amount.frac = my_amount.frac + my_purse_fee.frac;
  -- normalize result
-  my_amount_val = my_amount_val + my_amount_frac / 100000000;
-  my_amount_frac = my_amount_frac % 100000000;
+  my_amount.val = my_amount.val + my_amount.frac / 100000000;
+  my_amount.frac = my_amount.frac % 100000000;

  UPDATE exchange.reserves
  SET
-    current_balance_frac=current_balance_frac+my_amount_frac
+    current_balance.frac=current_balance.frac+my_amount.frac
       - CASE
-         WHEN current_balance_frac + my_amount_frac >= 100000000
+         WHEN current_balance.frac + my_amount.frac >= 100000000
         THEN 100000000
         ELSE 0
         END,
-    current_balance_val=current_balance_val+my_amount_val
+    current_balance.val=current.balance_val+my.amount_val
       + CASE
-         WHEN current_balance_frac + my_amount_frac >= 100000000
+         WHEN current_balance.frac + my_amount.frac >= 100000000
         THEN 1
         ELSE 0
         END
--- a/src/exchangedb/exchange_do_recoup_to_reserve.sql
+++ b/src/exchangedb/exchange_do_recoup_to_reserve.sql
@ -31,9 +31,7 @@ CREATE OR REPLACE FUNCTION exchange_do_recoup_to_reserve(
 LANGUAGE plpgsql
 AS $$
 DECLARE
-  tmp_val INT8; -- amount recouped
-DECLARE
-  tmp_frac INT8; -- amount recouped
+  tmp taler_amount; -- amount recouped
 BEGIN
 -- Shards: SELECT known_coins (by coin_pub)
 --         SELECT recoup      (by coin_pub)
@ -49,8 +47,8 @@ SELECT
   remaining_frac
  ,remaining_val
 INTO
-   tmp_frac
-  ,tmp_val
+   tmp.frac
+  ,tmp.val
 FROM exchange.known_coins
  WHERE coin_pub=in_coin_pub;

@ -61,7 +59,7 @@ THEN
  RETURN;
 END IF;

-IF tmp_val + tmp_frac = 0
+IF tmp.val + tmp.frac = 0
 THEN
  -- Check for idempotency
  SELECT
@ -87,15 +85,15 @@ UPDATE known_coins
 -- Credit the reserve and update reserve timers.
 UPDATE reserves
  SET
-    current_balance_frac=current_balance_frac+tmp_frac
+    current_balance.frac=current_balance.frac+tmp.frac
       - CASE
-         WHEN current_balance_frac+tmp_frac >= 100000000
+         WHEN current_balance.frac+tmp.frac >= 100000000
         THEN 100000000
         ELSE 0
         END,
-    current_balance_val=current_balance_val+tmp_val
+    current_balance.val=current_balance.val+tmp.val
       + CASE
-         WHEN current_balance_frac+tmp_frac >= 100000000
+         WHEN current_balance.frac+tmp.frac >= 100000000
         THEN 1
         ELSE 0
         END,
@ -126,8 +124,8 @@ VALUES
  (in_coin_pub
  ,in_coin_sig
  ,in_coin_blind
-  ,tmp_val
-  ,tmp_frac
+  ,tmp.val
+  ,tmp.frac
  ,in_recoup_timestamp
  ,in_reserve_out_serial_id);

--- a/src/exchangedb/exchange_do_reserve_open.sql
+++ b/src/exchangedb/exchange_do_reserve_open.sql
@ -16,45 +16,29 @@

 CREATE OR REPLACE FUNCTION exchange_do_reserve_open(
  IN in_reserve_pub BYTEA,
-  IN in_total_paid_val INT8,
-  IN in_total_paid_frac INT4,
-  IN in_reserve_payment_val INT8,
-  IN in_reserve_payment_frac INT4,
+  IN in_total_paid taler_amount,
+  IN in_reserve_payment taler_amount,
  IN in_min_purse_limit INT4,
  IN in_default_purse_limit INT4,
  IN in_reserve_sig BYTEA,
  IN in_desired_expiration INT8,
  IN in_reserve_gc_delay INT8,
  IN in_now INT8,
-  IN in_open_fee_val INT8,
-  IN in_open_fee_frac INT4,
-  OUT out_open_cost_val INT8,
-  OUT out_open_cost_frac INT4,
+  IN in_open_fee taler_amount,
+  OUT out_open_cost taler_amount,
  OUT out_final_expiration INT8,
  OUT out_no_funds BOOLEAN)
 LANGUAGE plpgsql
 AS $$
 DECLARE
-  my_balance_val INT8;
-DECLARE
-  my_balance_frac INT4;
-DECLARE
-  my_cost_val INT8;
-DECLARE
+  my_balance taler_amount;
+  my_cost taler_amount;
  my_cost_tmp INT8;
-DECLARE
-  my_cost_frac INT4;
-DECLARE
  my_years_tmp INT4;
-DECLARE
  my_years INT4;
-DECLARE
  my_needs_update BOOL;
-DECLARE
  my_purses_allowed INT8;
-DECLARE
  my_expiration_date INT8;
-DECLARE
  my_reserve_expiration INT8;
 BEGIN

@ -62,13 +46,13 @@ BEGIN
 SELECT
  purses_allowed
 ,expiration_date
- ,current_balance_val
- ,current_balance_frac
+ ,current_balance.val
+ ,current_balance.frac
 INTO
  my_purses_allowed
 ,my_reserve_expiration
- ,my_balance_val
- ,my_balance_frac
+ ,my_balance.val
+ ,my_balance.frac
 FROM reserves
 WHERE
  reserve_pub=in_reserve_pub;
@ -88,8 +72,8 @@ ELSE
  my_expiration_date = my_reserve_expiration;
 END IF;

-my_cost_val = 0;
-my_cost_frac = 0;
+my_cost.val = 0;
+my_cost.frac = 0;
 my_needs_update = FALSE;
 my_years = 0;

@ -115,19 +99,19 @@ END IF;
 -- Compute cost based on annual fees
 IF (my_years > 0)
 THEN
-  my_cost_val = my_years * in_open_fee_val;
-  my_cost_tmp = my_years * in_open_fee_frac / 100000000;
-  IF (CAST (my_cost_val + my_cost_tmp AS INT8) < my_cost_val)
+  my_cost.val = my_years * in_open_fee.val;
+  my_cost_tmp = my_years * in_open_fee.frac / 100000000;
+  IF (CAST (my_cost.val + my_cost_tmp AS INT8) < my_cost.val)
  THEN
-    out_open_cost_val=9223372036854775807;
-    out_open_cost_frac=2147483647;
+    out_open_cost.val=9223372036854775807;
+    out_open_cost.frac=2147483647;
    out_final_expiration=my_expiration_date;
    out_no_funds=FALSE;
    RAISE NOTICE 'arithmetic issue computing amount';
  RETURN;
  END IF;
-  my_cost_val = CAST (my_cost_val + my_cost_tmp AS INT8);
-  my_cost_frac = my_years * in_open_fee_frac % 100000000;
+  my_cost.val = CAST (my_cost.val + my_cost_tmp AS INT8);
+  my_cost.frac = my_years * in_open_fee.frac % 100000000;
  my_needs_update = TRUE;
 END IF;

@ -135,20 +119,20 @@ END IF;
 IF NOT my_needs_update
 THEN
  out_final_expiration = my_reserve_expiration;
-  out_open_cost_val = 0;
-  out_open_cost_frac = 0;
+  out_open_cost.val = 0;
+  out_open_cost.frac = 0;
  out_no_funds=FALSE;
  RAISE NOTICE 'no change required';
  RETURN;
 END IF;

 -- Check payment (coins and reserve) would be sufficient.
-IF ( (in_total_paid_val < my_cost_val) OR
-     ( (in_total_paid_val = my_cost_val) AND
-       (in_total_paid_frac < my_cost_frac) ) )
+IF ( (in_total_paid.val < my_cost.val) OR
+     ( (in_total_paid.val = my_cost.val) AND
+       (in_total_paid.frac < my_cost.frac) ) )
 THEN
-  out_open_cost_val = my_cost_val;
-  out_open_cost_frac = my_cost_frac;
+  out_open_cost.val = my_cost.val;
+  out_open_cost.frac = my_cost.frac;
  out_no_funds=FALSE;
  -- We must return a failure, which is indicated by
  -- the expiration being below the desired expiration.
@ -167,25 +151,25 @@ THEN
 END IF;

 -- Check reserve balance is sufficient.
-IF (my_balance_val > in_reserve_payment_val)
+IF (my_balance.val > in_reserve_payment.val)
 THEN
-  IF (my_balance_frac >= in_reserve_payment_frac)
+  IF (my_balance.frac >= in_reserve_payment.frac)
  THEN
-    my_balance_val=my_balance_val - in_reserve_payment_val;
-    my_balance_frac=my_balance_frac - in_reserve_payment_frac;
+    my_balance.val=my_balance.val - in_reserve_payment.val;
+    my_balance.frac=my_balance.frac - in_reserve_payment.frac;
  ELSE
-    my_balance_val=my_balance_val - in_reserve_payment_val - 1;
-    my_balance_frac=my_balance_frac + 100000000 - in_reserve_payment_frac;
+    my_balance.val=my_balance.val - in_reserve_payment.val - 1;
+    my_balance.frac=my_balance.frac + 100000000 - in_reserve_payment.frac;
  END IF;
 ELSE
-  IF (my_balance_val = in_reserve_payment_val) AND (my_balance_frac >= in_reserve_payment_frac)
+  IF (my_balance.val = in_reserve_payment.val) AND (my_balance.frac >= in_reserve_payment.frac)
  THEN
-    my_balance_val=0;
-    my_balance_frac=my_balance_frac - in_reserve_payment_frac;
+    my_balance.val=0;
+    my_balance.frac=my_balance.frac - in_reserve_payment.frac;
  ELSE
    out_final_expiration = my_reserve_expiration;
-    out_open_cost_val = my_cost_val;
-    out_open_cost_frac = my_cost_frac;
+    out_open_cost.val = my_cost.val;
+    out_open_cost.frac = my_cost.frac;
    out_no_funds=TRUE;
    RAISE NOTICE 'reserve balance too low';
  RETURN;
@ -193,8 +177,7 @@ ELSE
 END IF;

 UPDATE reserves SET
-  current_balance_val=my_balance_val
- ,current_balance_frac=my_balance_frac
+  current_balance=my_balance
 ,gc_date=my_reserve_expiration + in_reserve_gc_delay
 ,expiration_date=my_expiration_date
 ,purses_allowed=my_purses_allowed
@ -202,8 +185,7 @@ WHERE
 reserve_pub=in_reserve_pub;

 out_final_expiration=my_expiration_date;
-out_open_cost_val = my_cost_val;
-out_open_cost_frac = my_cost_frac;
+out_open_cost = my_cost;
 out_no_funds=FALSE;
 RETURN;

--- a/src/exchangedb/exchange_do_reserve_purse.sql
+++ b/src/exchangedb/exchange_do_reserve_purse.sql
@ -22,8 +22,7 @@ CREATE OR REPLACE FUNCTION exchange_do_reserve_purse(
  IN in_reserve_gc INT8,
  IN in_reserve_sig BYTEA,
  IN in_reserve_quota BOOLEAN,
-  IN in_purse_fee_val INT8,
-  IN in_purse_fee_frac INT4,
+  IN in_purse_fee taler_amount,
  IN in_reserve_pub BYTEA,
  IN in_wallet_h_payto BYTEA,
  OUT out_no_funds BOOLEAN,
@ -101,8 +100,8 @@ ELSE
  --  UPDATE reserves balance (and check if balance is enough to pay the fee)
  IF (out_no_reserve)
  THEN
-    IF ( (0 != in_purse_fee_val) OR
-         (0 != in_purse_fee_frac) )
+    IF ( (0 != in_purse_fee.val) OR
+         (0 != in_purse_fee.frac) )
    THEN
      out_no_funds=TRUE;
      RETURN;
@ -118,22 +117,22 @@ ELSE
  ELSE
    UPDATE exchange.reserves
      SET
-        current_balance_frac=current_balance_frac-in_purse_fee_frac
+        current_balance.frac=current_balance.frac-in_purse_fee.frac
         + CASE
-         WHEN current_balance_frac < in_purse_fee_frac
+         WHEN current_balance.frac < in_purse_fee.frac
         THEN 100000000
         ELSE 0
         END,
-       current_balance_val=current_balance_val-in_purse_fee_val
+       current_balance.val=current_balance.val-in_purse_fee.val
         - CASE
-         WHEN current_balance_frac < in_purse_fee_frac
+         WHEN current_balance.frac < in_purse_fee.frac
         THEN 1
         ELSE 0
         END
      WHERE reserve_pub=in_reserve_pub
-        AND ( (current_balance_val > in_purse_fee_val) OR
-              ( (current_balance_frac >= in_purse_fee_frac) AND
-                (current_balance_val >= in_purse_fee_val) ) );
+        AND ( (current_balance.val > in_purse_fee.val) OR
+              ( (current_balance.frac >= in_purse_fee.frac) AND
+                (current_balance.val >= in_purse_fee.val) ) );
    IF NOT FOUND
    THEN
      out_no_funds=TRUE;
@ -159,5 +158,5 @@ INSERT INTO exchange.account_merges

 END $$;

-COMMENT ON FUNCTION exchange_do_reserve_purse(BYTEA, BYTEA, INT8, INT8, INT8, BYTEA, BOOLEAN, INT8, INT4, BYTEA, BYTEA)
+COMMENT ON FUNCTION exchange_do_reserve_purse(BYTEA, BYTEA, INT8, INT8, INT8, BYTEA, BOOLEAN, taler_amount, BYTEA, BYTEA)
  IS 'Create a purse for a reserve.';
--- a/src/exchangedb/exchange_do_reserves_in_insert.sql
+++ b/src/exchangedb/exchange_do_reserves_in_insert.sql
@ -19,8 +19,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch_reserves_in_insert(
  IN in_reserve_expiration INT8,
  IN in_reserve_pub BYTEA,
  IN in_wire_ref INT8,
-  IN in_credit_val INT8,
-  IN in_credit_frac INT4,
+  IN in_credit taler_amount,
  IN in_exchange_account_name VARCHAR,
  IN in_execution_date INT8,
  IN in_wire_source_h_payto BYTEA,
@ -42,14 +41,12 @@ BEGIN

  INSERT INTO reserves
    (reserve_pub
-    ,current_balance_val
-    ,current_balance_frac
+    ,current_balance
    ,expiration_date
    ,gc_date)
    VALUES
    (in_reserve_pub
-    ,in_credit_val
-    ,in_credit_frac
+    ,in_credit
    ,in_reserve_expiration
    ,in_gc_date)
  ON CONFLICT DO NOTHING
@ -67,8 +64,8 @@ BEGIN
    VALUES
    (in_reserve_pub
    ,in_wire_ref
-    ,in_credit_val
-    ,in_credit_frac
+    ,in_credit.val
+    ,in_credit.frac
    ,in_exchange_account_name
    ,in_wire_source_h_payto
    ,in_execution_date)
@ -90,8 +87,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch2_reserves_insert(
  IN in_reserve_expiration INT8,
  IN in0_reserve_pub BYTEA,
  IN in0_wire_ref INT8,
-  IN in0_credit_val INT8,
-  IN in0_credit_frac INT4,
+  IN in0_credit taler_amount,
  IN in0_exchange_account_name VARCHAR,
  IN in0_execution_date INT8,
  IN in0_wire_source_h_payto BYTEA,
@ -99,8 +95,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch2_reserves_insert(
  IN in0_notify TEXT,
  IN in1_reserve_pub BYTEA,
  IN in1_wire_ref INT8,
-  IN in1_credit_val INT8,
-  IN in1_credit_frac INT4,
+  IN in1_credit taler_amount,
  IN in1_exchange_account_name VARCHAR,
  IN in1_execution_date INT8,
  IN in1_wire_source_h_payto BYTEA,
@ -138,19 +133,16 @@ BEGIN
  WITH reserve_changes AS (
    INSERT INTO reserves
      (reserve_pub
-      ,current_balance_val
-      ,current_balance_frac
+      ,current_balance
      ,expiration_date
      ,gc_date)
      VALUES
      (in0_reserve_pub
-      ,in0_credit_val
-      ,in0_credit_frac
+      ,in0_credit
      ,in_reserve_expiration
      ,in_gc_date),
      (in1_reserve_pub
-      ,in1_credit_val
-      ,in1_credit_frac
+      ,in1_credit
      ,in_reserve_expiration
      ,in_gc_date)
    ON CONFLICT DO NOTHING
@ -200,15 +192,15 @@ BEGIN
      VALUES
      (in0_reserve_pub
      ,in0_wire_ref
-      ,in0_credit_val
-      ,in0_credit_frac
+      ,in0_credit.val
+      ,in0_credit.frac
      ,in0_exchange_account_name
      ,in0_wire_source_h_payto
      ,in0_execution_date),
      (in1_reserve_pub
      ,in1_wire_ref
-      ,in1_credit_val
-      ,in1_credit_frac
+      ,in1_credit.val
+      ,in1_credit.frac
      ,in1_exchange_account_name
      ,in1_wire_source_h_payto
      ,in1_execution_date)
@ -261,8 +253,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch4_reserves_insert(
  IN in_reserve_expiration INT8,
  IN in0_reserve_pub BYTEA,
  IN in0_wire_ref INT8,
-  IN in0_credit_val INT8,
-  IN in0_credit_frac INT4,
+  IN in0_credit taler_amount,
  IN in0_exchange_account_name VARCHAR,
  IN in0_execution_date INT8,
  IN in0_wire_source_h_payto BYTEA,
@ -270,8 +261,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch4_reserves_insert(
  IN in0_notify TEXT,
  IN in1_reserve_pub BYTEA,
  IN in1_wire_ref INT8,
-  IN in1_credit_val INT8,
-  IN in1_credit_frac INT4,
+  IN in1_credit taler_amount,
  IN in1_exchange_account_name VARCHAR,
  IN in1_execution_date INT8,
  IN in1_wire_source_h_payto BYTEA,
@ -279,8 +269,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch4_reserves_insert(
  IN in1_notify TEXT,
  IN in2_reserve_pub BYTEA,
  IN in2_wire_ref INT8,
-  IN in2_credit_val INT8,
-  IN in2_credit_frac INT4,
+  IN in2_credit taler_amount,
  IN in2_exchange_account_name VARCHAR,
  IN in2_execution_date INT8,
  IN in2_wire_source_h_payto BYTEA,
@ -288,8 +277,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch4_reserves_insert(
  IN in2_notify TEXT,
  IN in3_reserve_pub BYTEA,
  IN in3_wire_ref INT8,
-  IN in3_credit_val INT8,
-  IN in3_credit_frac INT4,
+  IN in3_credit taler_amount,
  IN in3_exchange_account_name VARCHAR,
  IN in3_execution_date INT8,
  IN in3_wire_source_h_payto BYTEA,
@ -337,29 +325,24 @@ BEGIN
  WITH reserve_changes AS (
    INSERT INTO reserves
      (reserve_pub
-      ,current_balance_val
-      ,current_balance_frac
+      ,current_balance
      ,expiration_date
      ,gc_date)
      VALUES
      (in0_reserve_pub
-      ,in0_credit_val
-      ,in0_credit_frac
+      ,in0_credit
      ,in_reserve_expiration
      ,in_gc_date),
      (in1_reserve_pub
-      ,in1_credit_val
-      ,in1_credit_frac
+      ,in1_credit
      ,in_reserve_expiration
      ,in_gc_date),
      (in2_reserve_pub
-      ,in2_credit_val
-      ,in2_credit_frac
+      ,in2_credit
      ,in_reserve_expiration
      ,in_gc_date),
      (in3_reserve_pub
-      ,in3_credit_val
-      ,in3_credit_frac
+      ,in3_credit
      ,in_reserve_expiration
      ,in_gc_date)
    ON CONFLICT DO NOTHING
@ -425,29 +408,29 @@ BEGIN
      VALUES
      (in0_reserve_pub
      ,in0_wire_ref
-      ,in0_credit_val
-      ,in0_credit_frac
+      ,in0_credit.val
+      ,in0_credit.frac
      ,in0_exchange_account_name
      ,in0_wire_source_h_payto
      ,in0_execution_date),
      (in1_reserve_pub
      ,in1_wire_ref
-      ,in1_credit_val
-      ,in1_credit_frac
+      ,in1_credit.val
+      ,in1_credit.frac
      ,in1_exchange_account_name
      ,in1_wire_source_h_payto
      ,in1_execution_date),
      (in2_reserve_pub
      ,in2_wire_ref
-      ,in2_credit_val
-      ,in2_credit_frac
+      ,in2_credit.val
+      ,in2_credit.frac
      ,in2_exchange_account_name
      ,in2_wire_source_h_payto
      ,in2_execution_date),
      (in3_reserve_pub
      ,in3_wire_ref
-      ,in3_credit_val
-      ,in3_credit_frac
+      ,in3_credit.val
+      ,in3_credit.frac
      ,in3_exchange_account_name
      ,in3_wire_source_h_payto
      ,in3_execution_date)
@ -522,8 +505,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch8_reserves_insert(
  IN in_reserve_expiration INT8,
  IN in0_reserve_pub BYTEA,
  IN in0_wire_ref INT8,
-  IN in0_credit_val INT8,
-  IN in0_credit_frac INT4,
+  IN in0_credit taler_amount,
  IN in0_exchange_account_name VARCHAR,
  IN in0_execution_date INT8,
  IN in0_wire_source_h_payto BYTEA,
@ -531,8 +513,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch8_reserves_insert(
  IN in0_notify TEXT,
  IN in1_reserve_pub BYTEA,
  IN in1_wire_ref INT8,
-  IN in1_credit_val INT8,
-  IN in1_credit_frac INT4,
+  IN in1_credit taler_amount,
  IN in1_exchange_account_name VARCHAR,
  IN in1_execution_date INT8,
  IN in1_wire_source_h_payto BYTEA,
@ -540,8 +521,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch8_reserves_insert(
  IN in1_notify TEXT,
  IN in2_reserve_pub BYTEA,
  IN in2_wire_ref INT8,
-  IN in2_credit_val INT8,
-  IN in2_credit_frac INT4,
+  IN in2_credit taler_amount,
  IN in2_exchange_account_name VARCHAR,
  IN in2_execution_date INT8,
  IN in2_wire_source_h_payto BYTEA,
@ -549,8 +529,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch8_reserves_insert(
  IN in2_notify TEXT,
  IN in3_reserve_pub BYTEA,
  IN in3_wire_ref INT8,
-  IN in3_credit_val INT8,
-  IN in3_credit_frac INT4,
+  IN in3_credit taler_amount,
  IN in3_exchange_account_name VARCHAR,
  IN in3_execution_date INT8,
  IN in3_wire_source_h_payto BYTEA,
@ -558,8 +537,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch8_reserves_insert(
  IN in3_notify TEXT,
  IN in4_reserve_pub BYTEA,
  IN in4_wire_ref INT8,
-  IN in4_credit_val INT8,
-  IN in4_credit_frac INT4,
+  IN in4_credit taler_amount,
  IN in4_exchange_account_name VARCHAR,
  IN in4_execution_date INT8,
  IN in4_wire_source_h_payto BYTEA,
@ -567,8 +545,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch8_reserves_insert(
  IN in4_notify TEXT,
  IN in5_reserve_pub BYTEA,
  IN in5_wire_ref INT8,
-  IN in5_credit_val INT8,
-  IN in5_credit_frac INT4,
+  IN in5_credit taler_amount,
  IN in5_exchange_account_name VARCHAR,
  IN in5_execution_date INT8,
  IN in5_wire_source_h_payto BYTEA,
@ -576,8 +553,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch8_reserves_insert(
  IN in5_notify TEXT,
  IN in6_reserve_pub BYTEA,
  IN in6_wire_ref INT8,
-  IN in6_credit_val INT8,
-  IN in6_credit_frac INT4,
+  IN in6_credit taler_amount,
  IN in6_exchange_account_name VARCHAR,
  IN in6_execution_date INT8,
  IN in6_wire_source_h_payto BYTEA,
@ -585,8 +561,7 @@ CREATE OR REPLACE FUNCTION exchange_do_batch8_reserves_insert(
  IN in6_notify TEXT,
  IN in7_reserve_pub BYTEA,
  IN in7_wire_ref INT8,
-  IN in7_credit_val INT8,
-  IN in7_credit_frac INT4,
+  IN in7_credit taler_amount,
  IN in7_exchange_account_name VARCHAR,
  IN in7_execution_date INT8,
  IN in7_wire_source_h_payto BYTEA,
@ -657,49 +632,40 @@ BEGIN
  WITH reserve_changes AS (
    INSERT INTO reserves
      (reserve_pub
-      ,current_balance_val
-      ,current_balance_frac
+      ,current_balance
      ,expiration_date
      ,gc_date)
      VALUES
      (in0_reserve_pub
-      ,in0_credit_val
-      ,in0_credit_frac
+      ,in0_credit
      ,in_reserve_expiration
      ,in_gc_date),
      (in1_reserve_pub
-      ,in1_credit_val
-      ,in1_credit_frac
+      ,in1_credit
      ,in_reserve_expiration
      ,in_gc_date),
      (in2_reserve_pub
-      ,in2_credit_val
-      ,in2_credit_frac
+      ,in2_credit
      ,in_reserve_expiration
      ,in_gc_date),
      (in3_reserve_pub
-      ,in3_credit_val
-      ,in3_credit_frac
+      ,in3_credit
      ,in_reserve_expiration
      ,in_gc_date),
      (in4_reserve_pub
-      ,in4_credit_val
-      ,in4_credit_frac
+      ,in4_credit
      ,in_reserve_expiration
      ,in_gc_date),
      (in5_reserve_pub
-      ,in5_credit_val
-      ,in5_credit_frac
+      ,in5_credit
      ,in_reserve_expiration
      ,in_gc_date),
      (in6_reserve_pub
-      ,in6_credit_val
-      ,in6_credit_frac
+      ,in6_credit
      ,in_reserve_expiration
      ,in_gc_date),
      (in7_reserve_pub
-      ,in7_credit_val
-      ,in7_credit_frac
+      ,in7_credit
      ,in_reserve_expiration
      ,in_gc_date)
    ON CONFLICT DO NOTHING
@ -802,57 +768,57 @@ BEGIN
      VALUES
      (in0_reserve_pub
      ,in0_wire_ref
-      ,in0_credit_val
-      ,in0_credit_frac
+      ,in0_credit.val
+      ,in0_credit.frac
      ,in0_exchange_account_name
      ,in0_wire_source_h_payto
      ,in0_execution_date),
      (in1_reserve_pub
      ,in1_wire_ref
-      ,in1_credit_val
-      ,in1_credit_frac
+      ,in1_credit.val
+      ,in1_credit.frac
      ,in1_exchange_account_name
      ,in1_wire_source_h_payto
      ,in1_execution_date),
      (in2_reserve_pub
      ,in2_wire_ref
-      ,in2_credit_val
-      ,in2_credit_frac
+      ,in2_credit.val
+      ,in2_credit.frac
      ,in2_exchange_account_name
      ,in2_wire_source_h_payto
      ,in2_execution_date),
      (in3_reserve_pub
      ,in3_wire_ref
-      ,in3_credit_val
-      ,in3_credit_frac
+      ,in3_credit.val
+      ,in3_credit.frac
      ,in3_exchange_account_name
      ,in3_wire_source_h_payto
      ,in3_execution_date),
      (in4_reserve_pub
      ,in4_wire_ref
-      ,in4_credit_val
-      ,in4_credit_frac
+      ,in4_credit.val
+      ,in4_credit.frac
      ,in4_exchange_account_name
      ,in4_wire_source_h_payto
      ,in4_execution_date),
      (in5_reserve_pub
      ,in5_wire_ref
-      ,in5_credit_val
-      ,in5_credit_frac
+      ,in5_credit.val
+      ,in5_credit.frac
      ,in5_exchange_account_name
      ,in5_wire_source_h_payto
      ,in5_execution_date),
      (in6_reserve_pub
      ,in6_wire_ref
-      ,in6_credit_val
-      ,in6_credit_frac
+      ,in6_credit.val
+      ,in6_credit.frac
      ,in6_exchange_account_name
      ,in6_wire_source_h_payto
      ,in6_execution_date),
      (in7_reserve_pub
      ,in7_wire_ref
-      ,in7_credit_val
-      ,in7_credit_frac
+      ,in7_credit.val
+      ,in7_credit.frac
      ,in7_exchange_account_name
      ,in7_wire_source_h_payto
      ,in7_execution_date)
--- a/src/exchangedb/exchange_do_withdraw.sql
+++ b/src/exchangedb/exchange_do_withdraw.sql
@ -17,8 +17,7 @@

 CREATE OR REPLACE FUNCTION exchange_do_withdraw(
  IN cs_nonce BYTEA,
-  IN amount_val INT8,
-  IN amount_frac INT4,
+  IN amount taler_amount,
  IN h_denom_pub BYTEA,
  IN rpub BYTEA,
  IN reserve_sig BYTEA,
@ -38,8 +37,7 @@ AS $$
 DECLARE
  reserve_gc INT8;
  denom_serial INT8;
-  reserve_val INT8;
-  reserve_frac INT4;
+  reserve taler_amount;
  reserve_birthday INT4;
  not_before date;
 BEGIN
@ -68,14 +66,13 @@ END IF;


 SELECT
-   current_balance_val
-  ,current_balance_frac
+   current_balance
  ,gc_date
  ,birthday
  ,reserve_uuid
 INTO
-   reserve_val
-  ,reserve_frac
+   reserve.val
+  ,reserve.frac
  ,reserve_gc
  ,reserve_birthday
  ,ruuid
@ -133,8 +130,8 @@ VALUES
  ,ruuid
  ,reserve_sig
  ,now
-  ,amount_val
-  ,amount_frac)
+  ,amount.val
+  ,amount.frac)
 ON CONFLICT DO NOTHING;

 IF NOT FOUND
@ -147,21 +144,21 @@ THEN
 END IF;

 -- Check reserve balance is sufficient.
-IF (reserve_val > amount_val)
+IF (reserve.val > amount.val)
 THEN
-  IF (reserve_frac >= amount_frac)
+  IF (reserve.frac >= amount.frac)
  THEN
-    reserve_val=reserve_val - amount_val;
-    reserve_frac=reserve_frac - amount_frac;
+    reserve.val=reserve.val - amount.val;
+    reserve.frac=reserve.frac - amount.frac;
  ELSE
-    reserve_val=reserve_val - amount_val - 1;
-    reserve_frac=reserve_frac + 100000000 - amount_frac;
+    reserve.val=reserve.val - amount.val - 1;
+    reserve.frac=reserve.frac + 100000000 - amount.frac;
  END IF;
 ELSE
-  IF (reserve_val = amount_val) AND (reserve_frac >= amount_frac)
+  IF (reserve.val = amount.val) AND (reserve.frac >= amount.frac)
  THEN
-    reserve_val=0;
-    reserve_frac=reserve_frac - amount_frac;
+    reserve.val=0;
+    reserve.frac=reserve.frac - amount.frac;
  ELSE
    reserve_found=TRUE;
    nonce_ok=TRUE; -- we do not really know
@ -176,8 +173,7 @@ min_reserve_gc=GREATEST(min_reserve_gc,reserve_gc);
 -- Update reserve balance.
 UPDATE reserves SET
  gc_date=min_reserve_gc
- ,current_balance_val=reserve_val
- ,current_balance_frac=reserve_frac
+ ,current_balance=reserve
 WHERE
  reserves.reserve_pub=rpub;

@ -222,7 +218,6 @@ END IF;

 END $$;

-
-COMMENT ON FUNCTION exchange_do_withdraw(BYTEA, INT8, INT4, BYTEA, BYTEA, BYTEA, BYTEA, BYTEA, INT8, INT8, BOOLEAN)
+COMMENT ON FUNCTION exchange_do_withdraw(BYTEA, taler_amount, BYTEA, BYTEA, BYTEA, BYTEA, BYTEA, INT8, INT8, BOOLEAN)
  IS 'Checks whether the reserve has sufficient balance for a withdraw operation (or the request is repeated and was previously approved) and if the age requirements are formally met.  If so updates the database with the result';

--- a/src/exchangedb/pg_do_batch_withdraw_insert.c
+++ b/src/exchangedb/pg_do_batch_withdraw_insert.c
@ -41,7 +41,8 @@ TEH_PG_do_batch_withdraw_insert (
    NULL == nonce
    ? GNUNET_PQ_query_param_null ()
    : GNUNET_PQ_query_param_auto_from_type (nonce),
-    TALER_PQ_query_param_amount (&collectable->amount_with_fee),
+    TALER_PQ_query_param_amount_tuple (pg->conn,
+                                       &collectable->amount_with_fee),
    GNUNET_PQ_query_param_auto_from_type (&collectable->denom_pub_hash),
    GNUNET_PQ_query_param_uint64 (&ruuid),
    GNUNET_PQ_query_param_auto_from_type (&collectable->reserve_sig),
@ -69,7 +70,7 @@ TEH_PG_do_batch_withdraw_insert (
           ",out_conflict AS conflict"
           ",out_nonce_reuse AS nonce_reuse"
           " FROM exchange_do_batch_withdraw_insert"
-           " ($1,$2,$3,$4,$5,$6,$7,$8,$9);");
+           " ($1,$2,$3,$4,$5,$6,$7,$8);");
  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
                                                   "call_batch_withdraw_insert",
                                                   params,
--- a/src/exchangedb/pg_do_withdraw.c
+++ b/src/exchangedb/pg_do_withdraw.c
@ -46,7 +46,8 @@ TEH_PG_do_withdraw (
    NULL == nonce
    ? GNUNET_PQ_query_param_null ()
    : GNUNET_PQ_query_param_auto_from_type (nonce),
-    TALER_PQ_query_param_amount (&collectable->amount_with_fee),
+    TALER_PQ_query_param_amount_tuple (pg->conn,
+                                       &collectable->amount_with_fee),
    GNUNET_PQ_query_param_auto_from_type (&collectable->denom_pub_hash),
    GNUNET_PQ_query_param_auto_from_type (&collectable->reserve_pub),
    GNUNET_PQ_query_param_auto_from_type (&collectable->reserve_sig),
@ -83,7 +84,7 @@ TEH_PG_do_withdraw (
           ",allowed_maximum_age"
           ",ruuid"
           " FROM exchange_do_withdraw"
-           " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11);");
+           " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10);");
  gc = GNUNET_TIME_absolute_to_timestamp (
    GNUNET_TIME_absolute_add (now.abs_time,
                              pg->legal_reserve_expiration_time));
--- a/src/exchangedb/pg_get_expired_reserves.c
+++ b/src/exchangedb/pg_get_expired_reserves.c
@ -84,7 +84,8 @@ reserve_expired_cb (void *cls,
                                    &account_details),
      GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
                                            &reserve_pub),
-      TALER_PQ_RESULT_SPEC_AMOUNT ("current_balance",
+      TALER_PQ_result_spec_amount_tuple ("current_balance",
+                                         pg->currency,
                                         &remaining_balance),
      GNUNET_PQ_result_spec_end
    };
@ -137,7 +138,7 @@ TEH_PG_get_expired_reserves (void *cls,
           " SELECT * "
           " FROM reserves "
           " WHERE expiration_date <= $1 "
-           "   AND (current_balance_val != 0 OR current_balance_frac != 0) "
+           "   AND (current_balance.val != 0 OR current_balance.frac != 0) "
           " ORDER BY expiration_date ASC "
           " LIMIT 1 "
           ") "
@ -145,8 +146,7 @@ TEH_PG_get_expired_reserves (void *cls,
           " ed.expiration_date "
           " ,payto_uri AS account_details "
           " ,ed.reserve_pub "
-           " ,current_balance_val "
-           " ,current_balance_frac "
+           " ,current_balance "
           "FROM ( "
           " SELECT "
           "  * "
--- a/src/exchangedb/pg_get_reserve_balance.c
+++ b/src/exchangedb/pg_get_reserve_balance.c
@ -36,7 +36,8 @@ TEH_PG_get_reserve_balance (void *cls,
    GNUNET_PQ_query_param_end
  };
  struct GNUNET_PQ_ResultSpec rs[] = {
-    TALER_PQ_RESULT_SPEC_AMOUNT ("current_balance",
+    TALER_PQ_result_spec_amount_tuple ("current_balance",
+                                       pg->currency,
                                       balance),
    GNUNET_PQ_result_spec_end
  };
@ -44,8 +45,7 @@ TEH_PG_get_reserve_balance (void *cls,
  PREPARE (pg,
           "get_reserve_balance",
           "SELECT"
-           " current_balance_val"
-           ",current_balance_frac"
+           " current_balance"
           " FROM reserves"
           " WHERE reserve_pub=$1;");
  return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
--- a/src/exchangedb/pg_reserves_get.c
+++ b/src/exchangedb/pg_reserves_get.c
@ -35,7 +35,8 @@ TEH_PG_reserves_get (void *cls,
    GNUNET_PQ_query_param_end
  };
  struct GNUNET_PQ_ResultSpec rs[] = {
-    TALER_PQ_RESULT_SPEC_AMOUNT ("current_balance",
+    TALER_PQ_result_spec_amount_tuple ("current_balance",
+                                       pg->currency,
                                       &reserve->balance),
    GNUNET_PQ_result_spec_timestamp ("expiration_date",
                                     &reserve->expiry),
@ -47,8 +48,7 @@ TEH_PG_reserves_get (void *cls,
  PREPARE (pg,
           "reserves_get",
           "SELECT"
-           " current_balance_val"
-           ",current_balance_frac"
+           " current_balance"
           ",expiration_date"
           ",gc_date"
           " FROM reserves"
--- a/src/exchangedb/pg_reserves_in_insert.c
+++ b/src/exchangedb/pg_reserves_in_insert.c
@ -100,7 +100,7 @@ struct ReserveRecord
 #define RR_QUERY_PARAM(rr,index) \
  GNUNET_PQ_query_param_auto_from_type (rr[index].reserve->reserve_pub),    \
  GNUNET_PQ_query_param_uint64 (&rr[index].reserve->wire_reference),        \
-  TALER_PQ_query_param_amount (rr[index].reserve->balance),                 \
+  TALER_PQ_query_param_amount_tuple (pg->conn, rr[index].reserve->balance), \
  GNUNET_PQ_query_param_string (rr[index].reserve->exchange_account_name),  \
  GNUNET_PQ_query_param_timestamp (&rr[index].reserve->execution_time),     \
  GNUNET_PQ_query_param_auto_from_type (&rr[index].h_payto),                \
@ -154,7 +154,7 @@ insert1 (struct PostgresClosure *pg,
           " transaction_duplicate0 AS transaction_duplicate0"
           ",ruuid0 AS reserve_uuid0"
           " FROM exchange_do_batch_reserves_in_insert"
-           " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11);");
+           " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10);");
  qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
                                                 "batch1_reserve_create",
                                                 params,
@ -214,7 +214,7 @@ insert2 (struct PostgresClosure *pg,
           ",ruuid0 AS reserve_uuid0"
           ",ruuid1 AS reserve_uuid1"
           " FROM exchange_do_batch2_reserves_insert"
-           " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16,$17,$18,$19,$20);");
+           " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16,$17,$18);");
  qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
                                                 "batch2_reserve_create",
                                                 params,
@ -285,7 +285,7 @@ insert4 (struct PostgresClosure *pg,
           ",ruuid2 AS reserve_uuid2"
           ",ruuid3 AS reserve_uuid3"
           " FROM exchange_do_batch4_reserves_insert"
-           " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16,$17,$18,$19,$20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$30,$31,$32,$33,$34,$35,$36,$37,$38);");
+           " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16,$17,$18,$19,$20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$30,$31,$32,$33,$34);");
  qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
                                                 "batch4_reserve_create",
                                                 params,
@ -373,7 +373,7 @@ insert8 (struct PostgresClosure *pg,
           ",ruuid6 AS reserve_uuid6"
           ",ruuid7 AS reserve_uuid7"
           " FROM exchange_do_batch8_reserves_insert"
-           " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16,$17,$18,$19,$20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$30,$31,$32,$33,$34,$35,$36,$37,$38,$39, $40, $41,$42,$43,$44,$45,$46,$47,$48,$49,$50,$51,$52,$53,$54,$55,$56,$57,$58,$59,$60,$61,$62,$63,$64,$65,$66,$67,$68,$69,$70,$71,$72,$73,$74);");
+           " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16,$17,$18,$19,$20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$30,$31,$32,$33,$34,$35,$36,$37,$38,$39, $40, $41,$42,$43,$44,$45,$46,$47,$48,$49,$50,$51,$52,$53,$54,$55,$56,$57,$58,$59,$60,$61,$62,$63,$64,$65,$66);");

  qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
                                                 "batch8_reserve_create",
@ -537,7 +537,8 @@ transact (
        GNUNET_PQ_query_param_auto_from_type (rr[i].reserve->reserve_pub),
        GNUNET_PQ_query_param_timestamp (&reserve_expiration),
        GNUNET_PQ_query_param_uint64 (&rr[i].reserve->wire_reference),
-        TALER_PQ_query_param_amount (rr[i].reserve->balance),
+        TALER_PQ_query_param_amount_tuple (pg->conn,
+                                           rr[i].reserve->balance),
        GNUNET_PQ_query_param_string (rr[i].reserve->exchange_account_name),
        GNUNET_PQ_query_param_auto_from_type (&rr[i].h_payto),
        GNUNET_PQ_query_param_string (rr[i].notify_s),
@ -859,7 +860,8 @@ TEH_PG_reserves_in_insertN (
        GNUNET_PQ_query_param_auto_from_type (reserve_pubs[i]),
        GNUNET_PQ_query_param_timestamp (&reserve_expiration),
        GNUNET_PQ_query_param_uint64 (&wire_reference[i]),
-        TALER_PQ_query_param_amount (balances[i]),
+        TALER_PQ_query_param_amount_tuple (pg->conn,
+                                           balances[i]),
        GNUNET_PQ_query_param_string (exchange_account_names[i]),
        GNUNET_PQ_query_param_auto_from_type (h_paytos[i]),
        GNUNET_PQ_query_param_string (notify_s[i]),
--- a/src/exchangedb/pg_reserves_update.c
+++ b/src/exchangedb/pg_reserves_update.c
@ -33,7 +33,8 @@ TEH_PG_reserves_update (void *cls,
  struct GNUNET_PQ_QueryParam params[] = {
    GNUNET_PQ_query_param_timestamp (&reserve->expiry),
    GNUNET_PQ_query_param_timestamp (&reserve->gc),
-    TALER_PQ_query_param_amount (&reserve->balance),
+    TALER_PQ_query_param_amount_tuple (pg->conn,
+                                       &reserve->balance),
    GNUNET_PQ_query_param_auto_from_type (&reserve->pub),
    GNUNET_PQ_query_param_end
  };
@ -44,9 +45,8 @@ TEH_PG_reserves_update (void *cls,
           " SET"
           " expiration_date=$1"
           ",gc_date=$2"
-           ",current_balance_val=$3"
-           ",current_balance_frac=$4"
-           " WHERE reserve_pub=$5;");
+           ",current_balance=$3"
+           " WHERE reserve_pub=$4;");
  return GNUNET_PQ_eval_prepared_non_select (pg->conn,
                                             "reserve_update",
                                             params);
--- a/src/exchangedb/pg_select_reserve_close_info.c
+++ b/src/exchangedb/pg_select_reserve_close_info.c
@ -39,7 +39,8 @@ TEH_PG_select_reserve_close_info (
    GNUNET_PQ_query_param_end
  };
  struct GNUNET_PQ_ResultSpec rs[] = {
-    TALER_PQ_RESULT_SPEC_AMOUNT ("current_balance",
+    TALER_PQ_result_spec_amount_tuple ("current_balance",
+                                       pg->currency,
                                       balance),
    GNUNET_PQ_result_spec_string ("payto_uri",
                                  payto_uri),
@ -49,8 +50,7 @@ TEH_PG_select_reserve_close_info (
  PREPARE (pg,
           "select_reserve_close_info",
           "SELECT "
-           " r.current_balance_val"
-           ",r.current_balance_frac"
+           " r.current_balance"
           ",wt.payto_uri"
           " FROM reserves r"
           " LEFT JOIN reserves_in ri USING (reserve_pub)"
--- a/src/exchangedb/plugin_exchangedb_postgres.c
+++ b/src/exchangedb/plugin_exchangedb_postgres.c
@ -293,6 +293,7 @@ TEH_PG_internal_setup (struct PostgresClosure *pg)
                                          NULL);
    if (NULL == db_conn)
      return GNUNET_SYSERR;
+
    pg->prep_gen++;
    pg->conn = db_conn;
  }
@ -778,6 +779,12 @@ libtaler_plugin_exchangedb_postgres_init (void *cls)
  plugin->batch_ensure_coin_known
    = &TEH_PG_batch_ensure_coin_known;

+  if (GNUNET_OK != TALER_PQ_load_oids_for_composite_types (pg->conn))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Failed to load OIDs for composite types\n");
+  }
+
  return plugin;
 }

--- a/src/include/taler_exchangedb_lib.h
+++ b/src/include/taler_exchangedb_lib.h
@ -46,7 +46,6 @@ TALER_EXCHANGEDB_plugin_load (const struct GNUNET_CONFIGURATION_Handle *cfg);
 void
 TALER_EXCHANGEDB_plugin_unload (struct TALER_EXCHANGEDB_Plugin *plugin);

-
 /**
 * Information about an account from the configuration.
 */
--- a/src/include/taler_pq_lib.h
+++ b/src/include/taler_pq_lib.h
@ -19,15 +19,42 @@
 * @author Sree Harsha Totakura <sreeharsha@totakura.in>
 * @author Florian Dold
 * @author Christian Grothoff
+ * @author Özgür Kesim
 */
 #ifndef TALER_PQ_LIB_H_
 #define TALER_PQ_LIB_H_

 #include <libpq-fe.h>
 #include <jansson.h>
+#include <gnunet/gnunet_common.h>
 #include <gnunet/gnunet_pq_lib.h>
 #include "taler_util.h"

+/**
+ * Enumerates the composite types that Taler defines in Postgres.
+ * The corresponding OIDs (which are assigned by postgres at time of
+ * declaration) are stored in TALER_PQ_CompositeOIDs.
+ */
+enum TALER_PQ_CompositeType
+{
+  TALER_PQ_CompositeAmount,
+  TALER_PQ_CompositeMAX /* MUST be last */
+};
+
+/**
+ * The correspondence of the Composite types and their OID in Postgres
+ */
+extern Oid TALER_PQ_CompositeOIDs[TALER_PQ_CompositeMAX];
+
+/**
+ * Initialize the list of OIDs in TALER_PQ_CompositeOIDs.  MUST be called
+ * before any composite type is used in arrays-specs/-params.
+ *
+ * @return GNUNET_SYSERR on failure
+ */
+enum GNUNET_GenericReturnValue
+TALER_PQ_load_oids_for_composite_types (struct GNUNET_PQ_Context *db);
+
 /**
 * Generate query parameter for a currency, consisting of the three
 * components "value", "fraction" and "currency" in this order. The
--- a/src/pq/Makefile.am
+++ b/src/pq/Makefile.am
@ -10,6 +10,8 @@ lib_LTLIBRARIES = \
  libtalerpq.la

 libtalerpq_la_SOURCES = \
+  pq_common.h \
+  pq_composite_types.c \
  pq_query_helper.c \
  pq_result_helper.c
 libtalerpq_la_LIBADD = \
--- a/src/pq/pq_common.h
+++ b/src/pq/pq_common.h
@ -47,20 +47,6 @@ enum TALER_PQ_ArrayType
  TALER_PQ_array_of_MAX,       /* must be last */
 };

-/**
- * The header for a postgresql array in binary format. note that this a
- * simplified special case of the general structure (which contains pointers),
- * as we only support one-dimensional arrays.
- */
-struct TALER_PQ_ArrayHeader_P
-{
-  uint32_t ndim;     /* number of dimensions. we only support ndim = 1 */
-  uint32_t has_null;
-  uint32_t oid;
-  uint32_t dim;      /* size of the array */
-  uint32_t lbound;   /* index value of first element in the db (default: 1). */
-} __attribute__((packed));
-
 /**
 * Memory representation of an taler amount record for Postgres.
 *
@ -92,5 +78,6 @@ struct TALER_PQ_Amount_P
    .f = htonl ((amount)->fraction) \
  }

+
 #endif  /* TALER_PQ_COMMON_H_ */
 /* end of pg/pq_common.h */
--- a/src/pq/pq_composite_types.c
+++ b/src/pq/pq_composite_types.c
@ -0,0 +1,57 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2023 Taler Systems SA
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file pq/pq_composite_types.c
+ * @brief helper functions for Taler-specific libpq (PostGres) interactions with composite types
+ * @author Özgür Kesim
+ */
+#include "platform.h"
+#include <gnunet/gnunet_common.h>
+#include <gnunet/gnunet_util_lib.h>
+#include <gnunet/gnunet_pq_lib.h>
+#include "taler_pq_lib.h"
+#include "pq_common.h"
+
+Oid TALER_PQ_CompositeOIDs[TALER_PQ_CompositeMAX] = {0};
+
+enum GNUNET_GenericReturnValue
+TALER_PQ_load_oids_for_composite_types (
+  struct GNUNET_PQ_Context *db)
+{
+  static char *names[] = {
+    [TALER_PQ_CompositeAmount] = "taler_amount"
+  };
+  size_t num = sizeof(names) / sizeof(names[0]);
+
+  GNUNET_static_assert (num == TALER_PQ_CompositeMAX);
+
+  for (size_t i = 0; i < num; i++)
+  {
+    enum GNUNET_GenericReturnValue ret;
+    enum TALER_PQ_CompositeType typ = i;
+    ret = GNUNET_PQ_get_oid_by_name (db,
+                                     names[i],
+                                     &TALER_PQ_CompositeOIDs[typ]);
+    if (GNUNET_OK != ret)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Failed to load OID for type %s\n",
+                  names[i]);
+      return GNUNET_SYSERR;
+    }
+  }
+  return GNUNET_OK;
+}
--- a/src/pq/pq_query_helper.c
+++ b/src/pq/pq_query_helper.c
@ -872,7 +872,7 @@ qconv_array (
    RETURN_UNLESS ((0 == num) || (y / num == x));

    /* size of header */
-    total_size  = x = sizeof(struct TALER_PQ_ArrayHeader_P);
+    total_size  = x = sizeof(struct GNUNET_PQ_ArrayHeader_P);
    total_size += y;
    RETURN_UNLESS (total_size >= x);

@ -941,7 +941,7 @@ qconv_array (
  /* Write data */
  {
    char *out = elements;
-    struct TALER_PQ_ArrayHeader_P h = {
+    struct GNUNET_PQ_ArrayHeader_P h = {
      .ndim = htonl (1),        /* We only support one-dimensional arrays */
      .has_null = htonl (0),    /* We do not support NULL entries in arrays */
      .lbound = htonl (1),      /* Default start index value */
--- a/src/pq/pq_result_helper.c
+++ b/src/pq/pq_result_helper.c
@ -1166,7 +1166,7 @@ extract_array_generic (
  int data_sz;
  char *data;
  void *out = NULL;
-  struct TALER_PQ_ArrayHeader_P header;
+  struct GNUNET_PQ_ArrayHeader_P header;
  int col_num;

  GNUNET_assert (NULL != dst);
@ -1192,8 +1192,8 @@ extract_array_generic (
  FAIL_IF (NULL == data);

  {
-    struct TALER_PQ_ArrayHeader_P *h =
-      (struct TALER_PQ_ArrayHeader_P *) data;
+    struct GNUNET_PQ_ArrayHeader_P *h =
+      (struct GNUNET_PQ_ArrayHeader_P *) data;

    header.ndim = ntohl (h->ndim);
    header.has_null = ntohl (h->has_null);
--- a/src/pq/test_pq.c
+++ b/src/pq/test_pq.c
@ -194,6 +194,16 @@ main (int argc,
    GNUNET_PQ_disconnect (conn);
    return 1;
  }
+
+  ret = TALER_PQ_load_oids_for_composite_types (conn);
+  if (GNUNET_OK != ret)
+  {
+    fprintf (stderr,
+             "Failed to load oids for composites\n");
+    GNUNET_PQ_disconnect (conn);
+    return 1;
+  }
+
  ret = run_queries (conn);
  {
    struct GNUNET_PQ_ExecuteStatement ds[] = {
Author	SHA1	Message	Date
Özgür Kesim	a1dae0199f	FAILING attempt to make echange.reserve use taler_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.	2023-07-28 19:01:57 +02:00
Özgür Kesim	8f9731e830	Merge branch 'new-amount', lookup OIDs for composites	2023-07-28 16:22:48 +02:00
Christian Grothoff	429aeb9e5e	-ignore	2023-07-28 16:21:08 +02:00
Özgür Kesim	94e5193bff	[pq] added helper to load oids of composite types - TALER_PQ_load_oids_for_composite_types added - Called during postgres-initialization	2023-07-28 16:19:21 +02:00