JNSimba commented on code in PR #3767:
URL: https://github.com/apache/flink-cdc/pull/3767#discussion_r2029852676
##########
flink-cdc-connect/flink-cdc-source-connectors/flink-connector-mysql-cdc/src/main/java/org/apache/flink/cdc/connectors/mysql/debezium/task/MySqlSnapshotSplitReadTask.java:
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@@ -109,6 +117,21 @@ public MySqlSnapshotSplitReadTask(
this.snapshotChangeEventSourceMetrics =
snapshotChangeEventSourceMetrics;
this.hooks = hooks;
this.isBackfillSkipped = isBackfillSkipped;
+
+ // setting column filter
+ String columnIncludeList =
+
sourceConfig.getDbzConfiguration().getString(COLUMN_INCLUDE_LIST);
+ String columnExcludeList =
+
sourceConfig.getDbzConfiguration().getString(COLUMN_EXCLUDE_LIST);
+ if (columnIncludeList != null) {
+ this.columnFilter =
+ Tables.ColumnNameFilterFactory.createIncludeListFilter(
+ columnIncludeList, ColumnFilterMode.CATALOG);
+ } else {
+ this.columnFilter =
+ Tables.ColumnNameFilterFactory.createExcludeListFilter(
+ columnExcludeList, ColumnFilterMode.CATALOG);
+ }
Review Comment:
This will only take effect in the snapshot phase, because MySQL's binlog
cannot be configured to capture partial columns. In the incremental phase,
projection can be used to query partial columns.
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