Handle concurrent table drop in TableCommentSystemTable #8443
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sopel39
reviewed
Jul 1, 2021
| @@ -152,6 +152,10 @@ public RecordCursor cursor(ConnectorTransactionHandle transactionHandle, Connect | |||
| return metadata.getRedirectionAwareTableHandle(session, tableName).getTableHandle() | |||
| .map(handle -> metadata.getTableMetadata(session, handle)) | |||
| .map(metadata -> metadata.getMetadata().getComment()) | |||
| .get(); | |||
| .orElseGet(() -> { | |||
| // A previously listed table might have been dropped concurrently | |||
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getComment is already wrapped in try catch, why we need this?
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That catches TrinoException, the Optional.get call throws RuntimeException when it is empty
sopel39
approved these changes
Jul 1, 2021
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Possible fix for #8410