morningman commented on a change in pull request #6964:
URL: https://github.com/apache/incubator-doris/pull/6964#discussion_r739638053
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File path: be/src/exprs/expr.cpp
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@@ -283,6 +283,9 @@ Status Expr::create_tree_from_thrift(ObjectPool* pool,
const std::vector<TExprNo
Expr* expr = NULL;
RETURN_IF_ERROR(create_expr(pool, nodes[*node_idx], &expr));
DCHECK(expr != NULL);
Review comment:
Here is the DCHECK here. So I think if expr is null here, this is a
fatal error?
Could you show me the case which can result in expr as null there?
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