mihaibudiu commented on code in PR #4572:
URL: https://github.com/apache/calcite/pull/4572#discussion_r2417407575
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core/src/main/java/org/apache/calcite/rel/rel2sql/RelToSqlConverter.java:
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@@ -1141,16 +1138,21 @@ public Result visit(TableModify modify) {
return result(sqlInsert, ImmutableList.of(), modify, null);
}
case UPDATE: {
+ final List<String> updateColumnList =
+ requireNonNull(modify.getUpdateColumnList(),
+ () -> "modify.getUpdateColumnList() is null for " + modify);
final Result input = visitInput(modify, 0);
+ final SqlSelect sourceSelect = input.asSelect();
Review Comment:
This is a great explanation, could you add parts of it as comments in the
code?
This will help a lot of other people.
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