Question

在CashSchemaV1中添加了一个额外的列xyz。我可以使用H2 db启动节点，但是使用PostgreSQL时会出现以下错误：

[ERROR] 14:52:11+0530 [main] internal.NodeStartupLogging.invoke - Exception during node startup: Incompatible schema change detected. Please run the node with database.initialiseSchema=true. Reason: Schema-validation: missing column [xyz] in table [contract_cash_states]

关注https://docs.corda.r3.com/database-management.html#database-management-scripts

在https://github.com/corda/corda/blob/master/finance/workflows/src/main/resources/migration/cash.changelog-init.xml中添加了xyz列

<column name="pennies" type="BIGINT"/>
<column name="xyz" type="NVARCHAR(130)"/>

然后将数据库迁移脚本追溯地添加到现有的CorDapp。在此之后，尝试启动节点，但出现以下错误：

[ERROR] 14:52:11+0530 [main] internal.NodeStartupLogging.invoke - Exception during node startup: Incompatible schema change detected. Please run the node with database.initialiseSchema=true. Reason: Schema-validation: missing column [xyz] in table [contract_cash_states]

CashSchemaV1.kt https://github.com/corda/corda/blob/master/finance/contracts/src/main/kotlin/net/corda/finance/schemas/CashSchemaV1.kt

@Type(type = "corda-wrapper-binary")
            var issuerRef: ByteArray,

            @Column (name = "xyz")
            var xyz: String

    ) : PersistentState()
}

迁移脚本生成cash-schema-v1.changelog-master.sql

--liquibase formatted sql

--changeset R3.Corda.Generated:initial_schema_for_CashSchemaV1

    create table contract_cash_states (
       output_index int4 not null,
        transaction_id varchar(64) not null,
        ccy_code varchar(3) not null,
        issuer_key_hash varchar(130) not null,
        issuer_ref bytea not null,
        owner_name varchar(255),
        pennies int8 not null,
        xyz varchar(255),
        primary key (output_index, transaction_id)
    );
create index ccy_code_idx on contract_cash_states (ccy_code);
create index pennies_idx on contract_cash_states (pennies);

应使用CashSchemaV1中指定的所有列创建架构

Answer 1

执行添加额外列的步骤： 1）在cash.changelog-init.xml中添加了<column name="xyz" type="NVARCHAR(130)"/> 2）在<addNotNullConstraint tableName="abc_states" columnName="xyz" columnDataType="NVARCHAR(130)"/>中添加了cash.changelog-v1.xml

构建cordapp，然后使用this运行节点，节点成功启动。

使用PostgreSQL在CashSchemaV1中添加额外的列后，节点无法启动

1 个答案: