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[SPARK-55617][SQL][FOLLOWUP] Correct VariantGet @since to 4.3.0 and expand its class doc #56537

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[SPARK-55617][SQL][FOLLOWUP] Correct VariantGet @since to 4.3.0 and expand its class doc #56537

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9 changes: 7 additions & 2 deletions sql/catalyst/src/main/java/org/apache/spark/sql/connector/expressions/VariantGet.java
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Expand Up @@ -24,9 +24,14 @@
import org.apache.spark.sql.types.DataType;

/**
* Variant get expression.
* A DSv2 connector expression that extracts a value from a variant column. It reads the value at
* the JSON {@code path} from the variant {@code child} and casts it to {@code targetType}. This is
* the connector-facing form of the {@code variant_get} / {@code try_variant_get} SQL functions:
* {@link #failOnError()} selects between them (throw vs. return null on a cast failure), and
* {@link #timeZoneId()} binds the time zone used for timestamp casts. {@code V2ExpressionBuilder}
* produces it so data sources can push variant extractions down (for example into filters).
*
* @since 4.1.0
* @since 4.3.0
*/
@Evolving
public class VariantGet extends ExpressionWithToString {
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