org.apache.flink.table.planner.plan.trait.UpdateKind Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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*
* http://www.apache.org/licenses/LICENSE-2.0
*
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package org.apache.flink.table.planner.plan.trait;
/** Lists all kinds of {@link ModifyKind#UPDATE} operation. */
public enum UpdateKind {
/** NONE doesn't represent any kind of update operation. */
NONE,
/**
* This kind indicates that operators should emit update changes just as a row of {@code
* RowKind#UPDATE_AFTER}.
*/
ONLY_UPDATE_AFTER,
/**
* This kind indicates that operators should emit update changes in the way that a row of {@code
* RowKind#UPDATE_BEFORE} and a row of {@code RowKind#UPDATE_AFTER} together.
*/
BEFORE_AND_AFTER
}