软件包：postgresql-13-wal2json（2.3-2）

PostgreSQL logical decoding JSON output plugin

wal2json is an output plugin for PostgreSQL's logical decoding. The plugin has access to tuples produced by INSERT and UPDATE. Also, UPDATE/DELETE old row versions can be accessed depending on the configured replica identity. Changes can be consumed using the streaming protocol (logical replication slots) or by a special SQL API.

The wal2json output plugin produces a JSON object per transaction. All of the new/old tuples are available in the JSON object. Also, there are options to include properties such as transaction timestamp, schema-qualified, data types, and transaction ids.

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