fix: use psycopg text array decoding in wal2json messages #490
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Slack thread: https://meltano.slack.com/archives/C06A1MD6A6L/p1724619858505739
When using log based replication, the wal2json output for columns of array types returns a string encoded in sql format.
Ex: '{a,b}'
The records produced by the tap in this sutation fails the target schema validation, since the schema is of type array and the value is a string.
I included a test case for it. Please feel free to modify the PR, I am by no means a python developer.
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