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Bug report

After I register the connector，in snapshot 6 step,I got an error like this

Caused by: java.sql.SQLException: ORA-01086: savepoint 'DBZ_SCHEMA_SNAPSHOT' never established in this session or is invalid

{{ at oracle.jdbc.driver.T2CConnection.checkError(T2CConnection.java:1255)
at oracle.jdbc.driver.T2CConnection.checkError(T2CConnection.java:1137)
at oracle.jdbc.driver.T2CStatement.executeForDescribe(T2CStatement.java:957)
at oracle.jdbc.driver.T2CStatement.executeForRows(T2CStatement.java:1200)
at oracle.jdbc.driver.OracleStatement.executeSQLStatement(OracleStatement.java:1530)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1310)
at oracle.jdbc.driver.OracleStatement.executeUpdateInternal(OracleStatement.java:2088)
at oracle.jdbc.driver.OracleStatement.executeLargeUpdate(OracleStatement.java:2053)
at oracle.jdbc.driver.OracleStatement.executeUpdate(OracleStatement.java:2041)
at oracle.jdbc.driver.OracleStatementWrapper.executeUpdate(OracleStatementWrapper.java:309)
at oracle.jdbc.driver.PhysicalConnection.rollback(PhysicalConnection.java:4764)
at oracle.jdbc.driver.T2CConnection.rollback(T2CConnection.java:97)
at io.debezium.connector.oracle.OracleSnapshotChangeEventSource.releaseSchemaSnapshotLocks(OracleSnapshotChangeEventSource.java:129)
at io.debezium.relational.RelationalSnapshotChangeEventSource.doExecute(RelationalSnapshotChangeEventSource.java:121)
at io.debezium.pipeline.source.AbstractSnapshotChangeEventSource.execute(AbstractSnapshotChangeEventSource.java:76)
... 8 more}}
Caused by: Error : 1086, Position : 0, Sql = ROLLBACK TO dbz_schema_snapshot, OriginalSql = ROLLBACK TO dbz_schema_snapshot, Error Msg = ORA-01086: savepoint 'DBZ_SCHEMA_SNAPSHOT' never established in this session or is invalid

it likes the savepoint is invalid so the rollback failed

What Debezium connector do you use and what version?

Oracle 1.8.1finally

What is the connector configuration?

What is the captured database version and mode of depoyment?

(E.g. on-premises, with a specific cloud provider, etc.)

Oracle 19c single-node

What behaviour do you expect?

<Your answer>

What behaviour do you see?

<Your answer>

Do you see the same behaviour using the latest relesead Debezium version?

(Ideally, also verify with latest Alpha/Beta/CR version)

<Your answer>

Do you have the connector logs, ideally from start till finish?

(You might be asked later to provide DEBUG/TRACE level log)

<Your answer>

How to reproduce the issue using our tutorial deployment?

<Your answer>

Feature request or enhancement

For feature requests or enhancements, provide this information, please:

Which use case/requirement will be addressed by the proposed feature?

<Your answer>

Implementation ideas (optional)

<Your answer>