raminqaf commented on code in PR #27901:
URL: https://github.com/apache/flink/pull/27901#discussion_r3058509949
##########
flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/api/PartitionedTable.java:
##########
@@ -172,4 +172,30 @@ public interface PartitionedTable {
* columns
*/
Table toChangelog(Expression... arguments);
+
+ /**
+ * Converts this append-only table with an explicit operation code column
into a dynamic table
+ * using the built-in {@code FROM_CHANGELOG} process table function.
+ *
+ * <p>Each input row is expected to have a string operation code column
(default: {@code "op"})
+ * that indicates the change operation (e.g., INSERT, UPDATE_AFTER,
DELETE). The output table is
Review Comment:
addressed
##########
flink-table/flink-table-common/src/main/java/org/apache/flink/table/functions/BuiltInFunctionDefinitions.java:
##########
@@ -802,6 +807,47 @@ ANY, and(logical(LogicalTypeRoot.BOOLEAN), LITERAL)
"org.apache.flink.table.runtime.functions.ptf.ToChangelogFunction")
.build();
+ public static final BuiltInFunctionDefinition FROM_CHANGELOG =
+ BuiltInFunctionDefinition.newBuilder()
+ .name("FROM_CHANGELOG")
+ .kind(PROCESS_TABLE)
+ .staticArguments(
+ StaticArgument.table(
+ "input",
+ Row.class,
+ false,
+ EnumSet.of(
+ StaticArgumentTrait.TABLE,
+
StaticArgumentTrait.SET_SEMANTIC_TABLE)),
+ StaticArgument.scalar("op",
DataTypes.DESCRIPTOR(), true),
+ StaticArgument.scalar(
+ "op_mapping",
+ DataTypes.MAP(DataTypes.STRING(),
DataTypes.STRING()),
+ true))
+ .changelogFunction(
+ new ChangelogFunction() {
+ @Override
+ public ChangelogMode getChangelogMode(
+ ChangelogContext changelogContext) {
+ return ChangelogMode.upsert(false);
Review Comment:
Please refer too:
https://github.com/apache/flink/pull/27901#discussion_r3058504538
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