JingsongLi commented on code in PR #4214:
URL: https://github.com/apache/paimon/pull/4214#discussion_r1772474879
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paimon-common/src/main/java/org/apache/paimon/types/RowType.java:
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@@ -238,6 +275,53 @@ public RowType project(List<String> names) {
.collect(Collectors.toList()));
}
+ public RowType project(String... names) {
+ return project(Arrays.asList(names));
+ }
+
+ // These methods are just for compatibility with old code to get the
projection, once
+ // toProjection and buildWithNewProjection are not used anymore, remove
them.
+ public RowType copyAndSetOriginalRowType(RowType originalRowType) {
+ if (this.originalRowType != null &&
!originalRowType.equals(this.originalRowType)) {
+ throw new RuntimeException();
+ }
+ return ((RowType) this.copy()).setOriginalRowType(originalRowType);
+ }
+
+ public int[] toProjection() {
+ if (fields.isEmpty()) {
+ return new int[0];
+ }
+ if (originalRowType == null) {
+ throw new RuntimeException();
+ }
+ return fields.stream()
+ .mapToInt(field ->
originalRowType.getFieldIndexByFieldId(field.id()))
+ .toArray();
+ }
+
+ // create new RowType based on the new projection and originalRowType
+ public RowType buildWithNewProjection(int[] projection) {
Review Comment:
remove this
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