Zouxxyy opened a new pull request, #6685:
URL: https://github.com/apache/paimon/pull/6685
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-->
### Purpose
new function in `ReadBuilder` for variant push down
```java
/**
* Push variant access to the reader.
*
* @param variantAccessInfo variant access info
* @since 1.4.0
*/
ReadBuilder withVariantAccess(VariantAccessInfo[] variantAccessInfo);
```
`VariantAccessInfo`
```java
/** Variant access information for a variant column. */
public class VariantAccessInfo implements Serializable {
private static final long serialVersionUID = 1L;
// The name of the variant column.
private final String columnName;
// Extracted fields from the variant.
private final List<VariantField> variantFields;
/** Variant field extracted from the variant. */
public static class VariantField implements Serializable {
private static final long serialVersionUID = 1L;
// The data field of the variant field.
private final DataField dataField;
// The `path` parameter of VariantGet.
private final String path;
private final VariantCastArgs castArgs;
}
```
### Tests
<!-- List UT and IT cases to verify this change -->
### API and Format
<!-- Does this change affect API or storage format -->
### Documentation
<!-- Does this change introduce a new feature -->
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