19 files changed, 664 insertions, 19 deletions
diff --git a/src/auditordb/pg_delete_purse_info.c b/src/auditordb/pg_delete_purse_info.c
new file mode 100644
index 00000000..2b22218b
--- /dev/null
+++ b/src/auditordb/pg_delete_purse_info.c
@@ -0,0 +1,34 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_delete_purse_info.c
+ * @brief Implementation of the delete_purse_info function for Postgres
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_delete_purse_info.h"
+#include "pg_helper.h"
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_delete_purse_info (
+  void *cls,
+  const struct TALER_PurseContractPublicKeyP *purse_pub,
+  const struct TALER_MasterPublicKeyP *master_pub)
+{
+}
diff --git a/src/auditordb/pg_delete_purse_info.h b/src/auditordb/pg_delete_purse_info.h
new file mode 100644
index 00000000..88b59fde
--- /dev/null
+++ b/src/auditordb/pg_delete_purse_info.h
@@ -0,0 +1,44 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_delete_purse_info.h
+ * @brief implementation of the delete_purse_info function for Postgres
+ * @author Christian Grothoff
+ */
+#ifndef PG_DELETE_PURSE_INFO_H
+#define PG_DELETE_PURSE_INFO_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Delete information about a purse.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param purse_pub public key of the reserve
+ * @param master_pub master public key of the exchange
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_delete_purse_info (
+  void *cls,
+  const struct TALER_PurseContractPublicKeyP *purse_pub,
+  const struct TALER_MasterPublicKeyP *master_pub);
+
+
+#endif
diff --git a/src/auditordb/pg_get_purse_info.c b/src/auditordb/pg_get_purse_info.c
new file mode 100644
index 00000000..4c469978
--- /dev/null
+++ b/src/auditordb/pg_get_purse_info.c
@@ -0,0 +1,37 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_get_purse_info.c
+ * @brief Implementation of the get_purse_info function for Postgres
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_purse_info.h"
+#include "pg_helper.h"
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_purse_info (
+  void *cls,
+  const struct TALER_PurseContractPublicKeyP *purse_pub,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  uint64_t *rowid,
+  struct TALER_Amount *balance,
+  struct GNUNET_TIME_Timestamp *expiration_date)
+{
+}
diff --git a/src/auditordb/pg_get_purse_info.h b/src/auditordb/pg_get_purse_info.h
new file mode 100644
index 00000000..2b2e7741
--- /dev/null
+++ b/src/auditordb/pg_get_purse_info.h
@@ -0,0 +1,49 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_get_purse_info.h
+ * @brief implementation of the get_purse_info function for Postgres
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_PURSE_INFO_H
+#define PG_GET_PURSE_INFO_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get information about a purse.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param purse_pub public key of the purse
+ * @param master_pub master public key of the exchange
+ * @param[out] rowid which row did we get the information from
+ * @param[out] balance set to balance of the purse
+ * @param[out] expiration_date expiration date of the purse
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_purse_info (
+  void *cls,
+  const struct TALER_PurseContractPublicKeyP *purse_pub,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  uint64_t *rowid,
+  struct TALER_Amount *balance,
+  struct GNUNET_TIME_Timestamp *expiration_date);
+
+#endif
diff --git a/src/auditordb/pg_get_purse_summary.c b/src/auditordb/pg_get_purse_summary.c
new file mode 100644
index 00000000..5a5e087d
--- /dev/null
+++ b/src/auditordb/pg_get_purse_summary.c
@@ -0,0 +1,33 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_get_purse_summary.c
+ * @brief Implementation of the get_purse_summary function for Postgres
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_get_purse_summary.h"
+#include "pg_helper.h"
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_purse_summary (void *cls,
+                          const struct TALER_MasterPublicKeyP *master_pub,
+                          struct TALER_AUDITORDB_PurseBalance *sum)
+{
+}
diff --git a/src/auditordb/pg_get_purse_summary.h b/src/auditordb/pg_get_purse_summary.h
new file mode 100644
index 00000000..e3c5d92f
--- /dev/null
+++ b/src/auditordb/pg_get_purse_summary.h
@@ -0,0 +1,43 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_get_purse_summary.h
+ * @brief implementation of the get_purse_summary function for Postgres
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_PURSE_SUMMARY_H
+#define PG_GET_PURSE_SUMMARY_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get summary information about all purses.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @param[out] sum purse balances summary to initialize
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_get_purse_summary (void *cls,
+                          const struct TALER_MasterPublicKeyP *master_pub,
+                          struct TALER_AUDITORDB_PurseBalance *sum);
+
+
+#endif
diff --git a/src/auditordb/pg_insert_purse_info.c b/src/auditordb/pg_insert_purse_info.c
new file mode 100644
index 00000000..bec57c85
--- /dev/null
+++ b/src/auditordb/pg_insert_purse_info.c
@@ -0,0 +1,36 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_insert_purse_info.c
+ * @brief Implementation of the insert_purse_info function for Postgres
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_purse_info.h"
+#include "pg_helper.h"
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_purse_info (
+  void *cls,
+  const struct TALER_PurseContractPublicKeyP *purse_pub,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_Amount *balance,
+  struct GNUNET_TIME_Timestamp expiration_date)
+{
+}
diff --git a/src/auditordb/pg_insert_purse_info.h b/src/auditordb/pg_insert_purse_info.h
new file mode 100644
index 00000000..67ac3dba
--- /dev/null
+++ b/src/auditordb/pg_insert_purse_info.h
@@ -0,0 +1,47 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_insert_purse_info.h
+ * @brief implementation of the insert_purse_info function for Postgres
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_PURSE_INFO_H
+#define PG_INSERT_PURSE_INFO_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+/**
+ * Insert information about a purse.  There must not be an
+ * existing record for the purse.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param purse_pub public key of the purse
+ * @param master_pub master public key of the exchange
+ * @param balance balance of the purse
+ * @param expiration_date expiration date of the purse
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_purse_info (
+  void *cls,
+  const struct TALER_PurseContractPublicKeyP *purse_pub,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_Amount *balance,
+  struct GNUNET_TIME_Timestamp expiration_date);
+
+#endif
diff --git a/src/auditordb/pg_insert_purse_summary.c b/src/auditordb/pg_insert_purse_summary.c
new file mode 100644
index 00000000..6a1a5b95
--- /dev/null
+++ b/src/auditordb/pg_insert_purse_summary.c
@@ -0,0 +1,34 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_insert_purse_summary.c
+ * @brief Implementation of the insert_purse_summary function for Postgres
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_purse_summary.h"
+#include "pg_helper.h"
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_purse_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_PurseBalance *sum)
+{
+}
diff --git a/src/auditordb/pg_insert_purse_summary.h b/src/auditordb/pg_insert_purse_summary.h
new file mode 100644
index 00000000..37e1843d
--- /dev/null
+++ b/src/auditordb/pg_insert_purse_summary.h
@@ -0,0 +1,45 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_insert_purse_summary.h
+ * @brief implementation of the insert_purse_summary function for Postgres
+ * @author Christian Grothoff
+ */
+#ifndef PG_INSERT_PURSE_SUMMARY_H
+#define PG_INSERT_PURSE_SUMMARY_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Insert information about all purses.  There must not be an
+ * existing record for the @a master_pub.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @param sum purse balance summary to store
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_insert_purse_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_PurseBalance *sum);
+
+
+#endif
diff --git a/src/auditordb/pg_select_purse_expired.c b/src/auditordb/pg_select_purse_expired.c
new file mode 100644
index 00000000..7a9ba915
--- /dev/null
+++ b/src/auditordb/pg_select_purse_expired.c
@@ -0,0 +1,35 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_select_purse_expired.c
+ * @brief Implementation of the select_purse_expired function for Postgres
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_select_purse_expired.h"
+#include "pg_helper.h"
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_select_purse_expired (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  TALER_AUDITORDB_ExpiredPurseCallback cb,
+  void *cb_cls)
+{
+}
diff --git a/src/auditordb/pg_select_purse_expired.h b/src/auditordb/pg_select_purse_expired.h
new file mode 100644
index 00000000..9f501408
--- /dev/null
+++ b/src/auditordb/pg_select_purse_expired.h
@@ -0,0 +1,45 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_select_purse_expired.h
+ * @brief implementation of the select_purse_expired function for Postgres
+ * @author Christian Grothoff
+ */
+#ifndef PG_SELECT_PURSE_EXPIRED_H
+#define PG_SELECT_PURSE_EXPIRED_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Get information about expired purses.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @param cb function to call on expired purses
+ * @param cb_cls closure for @a cb
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_select_purse_expired (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  TALER_AUDITORDB_ExpiredPurseCallback cb,
+  void *cb_cls);
+
+#endif
diff --git a/src/auditordb/pg_template.sh b/src/auditordb/pg_template.sh
index 73bd7e98..c0937dcd 100755
--- a/src/auditordb/pg_template.sh
+++ b/src/auditordb/pg_template.sh
@@ -10,12 +10,12 @@ do
     then
         cat pg_template.c | sed -e s/template/$n/g -e s/TEMPLATE/$NCAPS/g > pg_$n.c
         cat pg_template.h | sed -e s/template/$n/g -e s/TEMPLATE/$NCAPS/g > pg_$n.h
-        echo "  plugin->$n\n    = &TEH_PG_$n;" >> tmpl.c
+        echo "  plugin->$n\n    = &TAH_PG_$n;" >> tmpl.c
         echo "#include \"pg_$n.h\"" >> tmpl.inc
         echo "  pg_$n.h pg_$n.c \\" >> tmpl.am
     fi
 done
 
 echo "Add lines from tmpl.am to Makefile.am"
-echo "Add lines from tmpl.inc to plugin_exchangedb_postgres.c at the beginning"
-echo "Add lines from tmpl.c to plugin_exchangedb_postgres.c at the end"
+echo "Add lines from tmpl.inc to plugin_auditordb_postgres.c at the beginning"
+echo "Add lines from tmpl.c to plugin_auditordb_postgres.c at the end"
diff --git a/src/auditordb/pg_update_purse_info.c b/src/auditordb/pg_update_purse_info.c
new file mode 100644
index 00000000..0af0c913
--- /dev/null
+++ b/src/auditordb/pg_update_purse_info.c
@@ -0,0 +1,36 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_update_purse_info.c
+ * @brief Implementation of the update_purse_info function for Postgres
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_purse_info.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_purse_info (
+  void *cls,
+  const struct TALER_PurseContractPublicKeyP *purse_pub,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_Amount *balance)
+{
+}
diff --git a/src/auditordb/pg_update_purse_info.h b/src/auditordb/pg_update_purse_info.h
new file mode 100644
index 00000000..0b1f71d3
--- /dev/null
+++ b/src/auditordb/pg_update_purse_info.h
@@ -0,0 +1,47 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_update_purse_info.h
+ * @brief implementation of the update_purse_info function for Postgres
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_PURSE_INFO_H
+#define PG_UPDATE_PURSE_INFO_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Update information about a purse.  Destructively updates an
+ * existing record, which must already exist.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param purse_pub public key of the purse
+ * @param master_pub master public key of the exchange
+ * @param balance new balance for the purse
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_purse_info (
+  void *cls,
+  const struct TALER_PurseContractPublicKeyP *purse_pub,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_Amount *balance);
+
+
+#endif
diff --git a/src/auditordb/pg_update_purse_summary.c b/src/auditordb/pg_update_purse_summary.c
new file mode 100644
index 00000000..b03f0f4f
--- /dev/null
+++ b/src/auditordb/pg_update_purse_summary.c
@@ -0,0 +1,35 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_update_purse_summary.c
+ * @brief Implementation of the update_purse_summary function for Postgres
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_update_purse_summary.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_purse_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_PurseBalance *sum)
+{
+}
diff --git a/src/auditordb/pg_update_purse_summary.h b/src/auditordb/pg_update_purse_summary.h
new file mode 100644
index 00000000..b613f7c0
--- /dev/null
+++ b/src/auditordb/pg_update_purse_summary.h
@@ -0,0 +1,45 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022 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 auditordb/pg_update_purse_summary.h
+ * @brief implementation of the update_purse_summary function for Postgres
+ * @author Christian Grothoff
+ */
+#ifndef PG_UPDATE_PURSE_SUMMARY_H
+#define PG_UPDATE_PURSE_SUMMARY_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_auditordb_plugin.h"
+
+
+/**
+ * Update information about all purses.  Destructively updates an
+ * existing record, which must already exist.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param master_pub master public key of the exchange
+ * @param sum purse balances summary to store
+ * @return transaction status code
+ */
+enum GNUNET_DB_QueryStatus
+TAH_PG_update_purse_summary (
+  void *cls,
+  const struct TALER_MasterPublicKeyP *master_pub,
+  const struct TALER_AUDITORDB_PurseBalance *sum);
+
+
+#endif
diff --git a/src/auditordb/plugin_auditordb_postgres.c b/src/auditordb/plugin_auditordb_postgres.c
index 64c7b503..5ed01e5d 100644
--- a/src/auditordb/plugin_auditordb_postgres.c
+++ b/src/auditordb/plugin_auditordb_postgres.c
@@ -517,23 +517,23 @@ libtaler_plugin_auditordb_postgres_init (void *cls)
   plugin->insert_predicted_result
     = &TAH_PG_insert_predicted_result;
   plugin->get_purse_info
-    = &TEH_PG_get_purse_info;
+    = &TAH_PG_get_purse_info;
 
   plugin->delete_purse_info
-    = &TEH_PG_delete_purse_info;
+    = &TAH_PG_delete_purse_info;
   plugin->update_purse_info
-    = &TEH_PG_update_purse_info;
+    = &TAH_PG_update_purse_info;
   plugin->insert_purse_info
-    = &TEH_PG_insert_purse_info;
+    = &TAH_PG_insert_purse_info;
   plugin->get_purse_summary
-    = &TEH_PG_get_purse_summary;
+    = &TAH_PG_get_purse_summary;
 
   plugin->select_purse_expired
-    = &TEH_PG_select_purse_expired;
+    = &TAH_PG_select_purse_expired;
   plugin->insert_purse_summary
-    = &TEH_PG_insert_purse_summary;
+    = &TAH_PG_insert_purse_summary;
   plugin->update_purse_summary
-    = &TEH_PG_update_purse_summary;
+    = &TAH_PG_update_purse_summary;
 
   return plugin;
 }
diff --git a/src/include/taler_auditordb_plugin.h b/src/include/taler_auditordb_plugin.h
index 709a956c..9f46004c 100644
--- a/src/include/taler_auditordb_plugin.h
+++ b/src/include/taler_auditordb_plugin.h
@@ -1381,14 +1381,14 @@ struct TALER_AUDITORDB_Plugin
 
 
   /**
- * Insert information about all purses.  There must not be an
- * existing record for the @a master_pub.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param master_pub master public key of the exchange
- * @param sum purse balance summary to store
- * @return transaction status code
- */
+   * Insert information about all purses.  There must not be an
+   * existing record for the @a master_pub.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param master_pub master public key of the exchange
+   * @param sum purse balance summary to store
+   * @return transaction status code
+   */
   enum GNUNET_DB_QueryStatus
   (*insert_purse_summary)(
     void *cls,