Arrange to use Logical Replication protocol metadata. #155
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Instead of relying on wal2json to include the metadata we need in our implementation of Change Data Capture, use the Logical Decoding protocol metadata directly. This prepares for compatibility with other output_plugins in the future. The XID is still parsed from the "include-xids" option of wal2json at the moment, but it's used only as a hint and a check. The current plan is to have compatilibity with only output_plugins that can send the XIDs, such as for example the test_decoding output_plugin.
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Instead of relying on wal2json to include the metadata we need in our implementation of Change Data Capture, use the Logical Decoding protocol metadata directly.
This prepares for compatibility with other output_plugins in the future.
The XID is still parsed from the "include-xids" option of wal2json at the moment, but it's used only as a hint and a check. The current plan is to have compatilibity with only output_plugins that can send the XIDs, such as for example the test_decoding output_plugin.