imay commented on a change in pull request #1592: Broker load supports function
URL: https://github.com/apache/incubator-doris/pull/1592#discussion_r311379691
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File path: fe/src/main/java/org/apache/doris/analysis/Expr.java
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@@ -1484,6 +1486,10 @@ public static ExprSerCode fromCode(int code) {
}
public static void writeTo(Expr expr, DataOutput output) throws
IOException {
+ if (expr == null) {
Review comment:
It's strange to write a null expr?
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