From 2ce8960ebec29b37b63da2af9614b04e831c0108 Mon Sep 17 00:00:00 2001
From: Lajos Veres <lajos.veres@r3.com>
Date: Tue, 10 Oct 2023 10:50:08 +0100
Subject: [PATCH] CORE-17431 utxo_transaction_metadata table and related
 migrations

---
 .../migration/ledger-utxo-creation-v5.1.xml   | 48 +++++++++++++++++++
 1 file changed, 48 insertions(+)

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 b958807b00..d4b79d2923 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
@@ -121,6 +121,54 @@
 
         <!-- Drop the utxo_cpk table -->
         <dropTable tableName="utxo_cpk"/>
+
+        <createTable tableName="utxo_transaction_metadata">
+            <column name="hash" type="VARCHAR(160)">
+                <constraints nullable="false" primaryKey="true"/>
+            </column>
+            <column name="data" type="${json.column.type}">
+                <constraints nullable="false"/>
+            </column>
+            <column name="cpi_file_checksum_hash" type="VARCHAR(160)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="group_parameters_hash" type="VARCHAR(160)">
+                <constraints nullable="false"/>
+            </column>
+        </createTable>
+
+        <!-- Add utxo_transaction.metadata_hash nullable to let migrate data later -->
+        <addColumn tableName="utxo_transaction">
+            <column name="metadata_hash" type="VARCHAR(160)">
+                <constraints nullable="true" foreignKeyName="fk_utxo_transaction_metadata" references="utxo_transaction_metadata(hash)"/>
+            </column>
+        </addColumn>
+
+        <!-- Populate utxo_transaction_metadata. Postgresql only since, no other dbs were supported before 5.1. So only Postgres can have data which needs to be migrated. -->
+        <!-- ^^ is this correct?? -->
+        <sql dbms="postgresql">
+            INSERT INTO utxo_transaction_metadata
+            SELECT
+                hash,
+                convert_from(data, 'UTF-8')::jsonb AS data,
+                convert_from(data, 'UTF-8')::jsonb->'cpiMetadata'->'fileChecksum' AS cpi_file_checksum_hash,
+                convert_from(data, 'UTF-8')::jsonb->'membershipGroupParametersHash' AS group_parameters_hash
+            FROM
+                utxo_transaction_component
+            WHERE
+                group_idx=0 and
+                leaf_idx=0;
+        </sql>
+
+        <!-- Migrate utxo_transaction.metadata_hash -->
+        <update tableName="utxo_transaction">
+            <column name="metadata_hash"
+                    valueComputed="(select hash from utxo_transaction_component c where c.transaction_id=id and group_idx=0 and leaf_idx=0)"/>
+        </update>
+
+        <!-- Change utxo_transaction.metadata_hash to not nullable -->
+        <addNotNullConstraint tableName="utxo_transaction" columnName="metadata_hash" columnDataType="VARCHAR(160)"/>
+
     </changeSet>
 
 </databaseChangeLog>
\ No newline at end of file