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Document new features and improve documentation #357

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Jun 16, 2024
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Original file line number Diff line number Diff line change
Expand Up @@ -333,8 +333,9 @@ private Schema icebergSchema(boolean createIdentifierFields) {
// due to inconsistency in the after and before fields.
// For insert events, only the `before` field is NULL, while for delete events after field is NULL.
// This inconsistency prevents using either field as a reliable key.
throw new DebeziumException("Events are unnested, Identifier fields are not supported for unnested events! " +
"Pleas make sure you are using event flattening SMT! or disable identifier field creation!");
throw new DebeziumException("Debezium events are unnested, Identifier fields are not supported for unnested events! " +
"Pleas enable event flattening SMT see: https://debezium.io/documentation/reference/stable/transformations/event-flattening.html " +
" Or disable identifier field creation `debezium.sink.iceberg.create-identifier-fields=false`");
}
} else {
icebergSchemaFields(valueSchema, keySchema, schemaData);
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3 changes: 2 additions & 1 deletion docs/CAVEATS.md
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,8 @@ instead of rewrite data files)

## No automatic schema evolution

Full schema evaluation is not supported. But sema expansion like field addition is supported,
Full schema evaluation is not supported, like converting incompatible types. But sema expansion like field addition is
supported,
see `debezium.sink.iceberg.allow-field-addition` setting.

## Specific tables replication
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