diff --git a/src/exchangedb/Makefile.am b/src/exchangedb/Makefile.am
index 9757aefff..f07069f43 100644
--- a/src/exchangedb/Makefile.am
+++ b/src/exchangedb/Makefile.am
@@ -257,6 +257,7 @@ libtaler_plugin_exchangedb_postgres_la_SOURCES = \
   pg_select_purse_deposits_above_serial_id.h pg_select_purse_deposits_above_serial_id.c \
   pg_select_account_merges_above_serial_id.h pg_select_account_merges_above_serial_id.c \
   pg_select_all_purse_decisions_above_serial_id.h pg_select_all_purse_decisions_above_serial_id.c \
+  pg_batch_ensure_coin_known.h pg_batch_ensure_coin_known.c \
   pg_select_reserve_open_above_serial_id.c pg_select_reserve_open_above_serial_id.h
 libtaler_plugin_exchangedb_postgres_la_LIBADD = \
   $(LTLIBINTL)
diff --git a/src/exchangedb/plugin_exchangedb_postgres.c b/src/exchangedb/plugin_exchangedb_postgres.c
index 2ef250775..e67995188 100644
--- a/src/exchangedb/plugin_exchangedb_postgres.c
+++ b/src/exchangedb/plugin_exchangedb_postgres.c
@@ -216,7 +216,7 @@
 #include "pg_select_aml_process.h"
 #include "pg_select_aml_history.h"
 #include "pg_insert_aml_decision.h"
-
+#include "pg_batch_ensure_coin_known.h"
 
 /**
  * Set to 1 to enable Postgres auto_explain module. This will
@@ -773,6 +773,8 @@ libtaler_plugin_exchangedb_postgres_init (void *cls)
     = &TEH_PG_select_aml_history;
   plugin->insert_aml_decision
     = &TEH_PG_insert_aml_decision;
+  plugin->batch_ensure_coin_known
+    = &TEH_PG_batch_ensure_coin_known;
   return plugin;
 }
 
diff --git a/src/exchangedb/procedures.sql.in b/src/exchangedb/procedures.sql.in
index 27a5b3bb3..12ec3656f 100644
--- a/src/exchangedb/procedures.sql.in
+++ b/src/exchangedb/procedures.sql.in
@@ -44,5 +44,6 @@ SET search_path TO exchange;
 #include "exchange_do_refund_by_coin.sql"
 #include "exchange_do_get_ready_deposit.sql"
 #include "exchange_do_get_link_data.sql"
+#include "exchange_do_batch_coin_known.sql"
 
 COMMIT;
diff --git a/src/include/taler_exchangedb_plugin.h b/src/include/taler_exchangedb_plugin.h
index 962bccaa2..02d7896a6 100644
--- a/src/include/taler_exchangedb_plugin.h
+++ b/src/include/taler_exchangedb_plugin.h
@@ -4026,7 +4026,12 @@ struct TALER_EXCHANGEDB_Plugin
                        uint64_t *known_coin_id,
                        struct TALER_DenominationHashP *denom_pub_hash,
                        struct TALER_AgeCommitmentHash *age_hash);
-
+  enum TALER_EXCHANGEDB_CoinKnownStatus
+  (*batch_ensure_coin_known)(void *cls,
+                             const struct TALER_CoinPublicInfo *coin,
+                             const struct TALER_CoinInfo *result,
+                             unsigned int coin_length,
+                             unsigned int batch_size);
 
   /**
    * Retrieve information about the given @a coin from the database.