suibianwanwank commented on code in PR #4382:
URL: https://github.com/apache/calcite/pull/4382#discussion_r2108561848
##########
core/src/main/java/org/apache/calcite/rex/RexUtil.java:
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@@ -1867,6 +1869,29 @@ public static RexNode shift(RexNode node, final int
start, final int offset) {
});
}
+ /**
+ * Shifts every {@link RexFieldAccess} with {@link CorrelationId}
+ * in an {@link RelNode} by {@code offset}.
+ */
+ public static RelNode shiftFieldAccess(RexBuilder rexBuilder, RelNode node,
+ final CorrelationId id, RelNode outer, final int offset) {
Review Comment:
The construction of CorrelationId is public, and the Id type is int. We
cannot assume users won't use negative numbers. Therefore, I don't recommend
implementing validation here.
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