justbk2015 commented on a change in pull request #12749:
URL: https://github.com/apache/shardingsphere/pull/12749#discussion_r716484565
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File path:
shardingsphere-scaling/shardingsphere-scaling-core/src/main/java/org/apache/shardingsphere/scaling/core/common/sqlbuilder/ScalingSQLBuilder.java
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@@ -44,6 +47,17 @@
*/
String buildUpdateSQL(DataRecord dataRecord, Collection<Column>
conditionColumns);
+ /**
+ * Extract need updated columns.
+ *
+ * @param columns the input columns
+ * @param record the input datarecord
+ * @return the filtered columns.
+ */
+ default List<Column> extractUpdatedColumns(Collection<Column> columns,
DataRecord record) {
+ return new ArrayList<>(RecordUtil.extractUpdatedColumns(record));
+ }
Review comment:
no, this method will called at AbstractImporter::execteUpdate to filter
updated field.
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