diff --git a/data/db-schema/src/main/resources/net/corda/db/schema/vnode-vault/migration/ledger-utxo-creation-v5.1.xml b/data/db-schema/src/main/resources/net/corda/db/schema/vnode-vault/migration/ledger-utxo-creation-v5.1.xml
index 9aa5e97485..775063323d 100644
--- a/data/db-schema/src/main/resources/net/corda/db/schema/vnode-vault/migration/ledger-utxo-creation-v5.1.xml
+++ b/data/db-schema/src/main/resources/net/corda/db/schema/vnode-vault/migration/ledger-utxo-creation-v5.1.xml
@@ -126,7 +126,10 @@
             <column name="hash" type="VARCHAR(160)">
                 <constraints nullable="false" primaryKey="true"/>
             </column>
-            <column name="data" type="${json.column.type}">
+            <column name="canonical_data" type="VARBINARY(1048576)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="json_data" type="${json.column.type}">
                 <constraints nullable="false"/>
             </column>
             <column name="group_parameters_hash" type="VARCHAR(160)">
@@ -150,7 +153,8 @@
             INSERT INTO utxo_transaction_metadata
             SELECT
                 hash,
-                convert_from(data, 'UTF-8')::jsonb AS data,
+                data as canonical_data,
+                convert_from(data, 'UTF-8')::jsonb AS json_data,
                 convert_from(data, 'UTF-8')::jsonb->'membershipGroupParametersHash' AS group_parameters_hash,
                 convert_from(data, 'UTF-8')::jsonb->'cpiMetadata'->'fileChecksum' AS cpi_file_checksum
             FROM