diff --git a/sql/V1_10__all_ecocredit_txes.sql b/sql/V1_10__all_ecocredit_txes.sql
new file mode 100644
index 0000000..8f53e54
--- /dev/null
+++ b/sql/V1_10__all_ecocredit_txes.sql
@@ -0,0 +1,10 @@
+DROP FUNCTION IF EXISTS all_ecocredit_txes;
+
+CREATE FUNCTION all_ecocredit_txes () RETURNS SETOF tx AS $$
+    select tx.*
+    from tx
+    natural join msg_event_attr as mea
+    where
+      data ->'tx_response'->'code' @> '0'
+      and mea.type like 'regen.ecocredit%'
+$$ LANGUAGE SQL STABLE;
diff --git a/sql/V1_9__index_tx_response_code_and_type.sql b/sql/V1_9__index_tx_response_code_and_type.sql
new file mode 100644
index 0000000..33144c7
--- /dev/null
+++ b/sql/V1_9__index_tx_response_code_and_type.sql
@@ -0,0 +1 @@
+CREATE INDEX IF NOT EXISTS tx_data_tx_response_code_idx ON tx USING GIN ((DATA -> 'tx_response' -> 'code'));