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[FLINK-19980][table] Support fromChangelogStream/toChangelogStream #15699

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twalthr wants to merge 3 commits into from
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[FLINK-19980][table] Support fromChangelogStream/toChangelogStream #15699

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e45ba81
[FLINK-19980][table-common] Add a ChangelogMode.upsert() shortcut
twalthr Apr 19, 2021
b932a00
[FLINK-19980][table-common] Add a ChangelogMode.all() shortcut
twalthr Apr 20, 2021
8969375
[FLINK-19980][table] Support fromChangelogStream/toChangelogStream
twalthr Apr 13, 2021
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15 changes: 15 additions & 0 deletions ...able/flink-table-common/src/main/java/org/apache/flink/table/connector/ChangelogMode.java
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,13 @@ public final class ChangelogMode {
private static final ChangelogMode INSERT_ONLY =
ChangelogMode.newBuilder().addContainedKind(RowKind.INSERT).build();

private static final ChangelogMode UPSERT =
ChangelogMode.newBuilder()
.addContainedKind(RowKind.INSERT)
.addContainedKind(RowKind.UPDATE_AFTER)
.addContainedKind(RowKind.DELETE)
.build();

private final Set<RowKind> kinds;

private ChangelogMode(Set<RowKind> kinds) {
Expand All @@ -51,6 +58,14 @@ public static ChangelogMode insertOnly() {
return INSERT_ONLY;
}

/**
* Shortcut for an upsert changelog that describes idempotent updates on a key and thus does not
* contain {@link RowKind#UPDATE_BEFORE} rows.
*/
public static ChangelogMode upsert() {
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@wuchong wuchong Apr 22, 2021

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Could you use this method in valus source and sink? This can verify it works for the planner.

flink/flink-table/flink-table-planner-blink/src/test/java/org/apache/flink/table/planner/factories/TestValuesTableFactory.java

Line 1240 in c6147f2

return builder.build();

return UPSERT;
}

/** Builder for configuring and creating instances of {@link ChangelogMode}. */
public static Builder newBuilder() {
return new Builder();
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