[Bug][Sort] Oracle CDC uploaded two different db name metrics for the same table

[e-mhui]

What happened

If the lowercase database name( 'database-name' = 'orcl') is set in FlinkSQL, Oracle will upload two different metrics because during the snapshot , Oracle uses the db name from FlinkSQL, but during the stream, it uses the db name from the database. Therefore, two dbname metrics are generated on one table.

CREATE TABLE products (
    db_name STRING METADATA FROM 'database_name' VIRTUAL,
    schema_name STRING METADATA FROM 'schema_name' VIRTUAL, 
    table_name STRING METADATA  FROM 'table_name' VIRTUAL,
    operation_ts TIMESTAMP_LTZ(3) METADATA FROM 'op_ts' VIRTUAL,
    ID INT NOT NULL,
    NAME STRING,
    DESCRIPTION STRING,
    WEIGHT DECIMAL(10, 3),
    PRIMARY KEY(id) NOT ENFORCED
) WITH (
    'connector' = 'oracle-cdc',
    'hostname' = 'localhost',
    'port' = '1521',
    'username' = 'flinkuser',
    'password' = 'flinkpw',
    'database-name' = 'orcl',
    'schema-name' = 'inventory',
    'table-name' = 'products',
    'debezium.log.mining.strategy' = 'online_catalog',
    'debezium.log.mining.continuous.mine' = 'true'
);

What you expected to happen

Oracle CDC reports the same db metric for the same table.

How to reproduce

Set the lowercase database name( 'database-name' = 'orcl') in FlinkSQL, such as:

CREATE TABLE products (
    db_name STRING METADATA FROM 'database_name' VIRTUAL,
    schema_name STRING METADATA FROM 'schema_name' VIRTUAL, 
    table_name STRING METADATA  FROM 'table_name' VIRTUAL,
    operation_ts TIMESTAMP_LTZ(3) METADATA FROM 'op_ts' VIRTUAL,
    ID INT NOT NULL,
    NAME STRING,
    DESCRIPTION STRING,
    WEIGHT DECIMAL(10, 3),
    PRIMARY KEY(id) NOT ENFORCED
) WITH (
    'connector' = 'oracle-cdc',
    'hostname' = 'localhost',
    'port' = '1521',
    'username' = 'flinkuser',
    'password' = 'flinkpw',
    'database-name' = 'orcl',
    'schema-name' = 'inventory',
    'table-name' = 'products',
    'debezium.log.mining.strategy' = 'online_catalog',
    'debezium.log.mining.continuous.mine' = 'true'
);

Environment

No response

InLong version

master

InLong Component

InLong Sort

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• Yes, I am willing to submit a PR!

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