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DBZ-3208 Document Oracle support for Boolean types #2174

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Mar 2, 2021
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DBZ-3208 Document Oracle support for Boolean types #2174

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22 changes: 18 additions & 4 deletions documentation/modules/ROOT/pages/connectors/oracle.adoc
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Expand Up @@ -810,10 +810,6 @@ Contains a structure with two fields: `scale` of type `INT32` that contains the
|`INT64`
|n/a

|`NUMBER(1,0)`
|`BOOLEAN`
|n/a

|`NUMBER[(P[, *])]`
|`STRUCT`
|`io.debezium.data.VariableScaleDecimal` +
Expand Down Expand Up @@ -856,6 +852,24 @@ Contains a structure with two fields: `scale` of type `INT32` that contains the

|===

[id="oracle-boolean-types"]
=== Boolean types

Oracle does not natively have support for a `BOOLEAN` data type; however,
it is common practice to use other data types with certain semantics to simulate the concept of a logical `BOOLEAN` data type.

The operator can configure the out-of-the-box `NumberOneToBooleanConverter` custom converter that would either map all `NUMBER(1)` columns to a `BOOLEAN` or if the `selector` parameter is set,
then a subset of columns could be enumerated using a comma-separated list of regular expressions.

Following is an example configuration:

[source]
----
converters=boolean
boolean.type=io.debezium.connector.oracle.converters.NumberOneToBooleanConverter
boolean.selector=.*MYTABLE.FLAG,.*.IS_ARCHIVED
----

[id="oracle-decimal-types"]
=== Decimal types
The setting of the Oracle connector configuration property, `decimal.handling.mode` determines how the connector maps decimal types.
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