Re: "could not find pathkey item to sort" for TPC-DS queries 94-96

Tom Lane <tgl@sss.pgh.pa.us> writes:

> +    /* We ignore binary-compatible relabeling on both ends */
> +    while (expr && IsA(expr, RelabelType))
> +        expr = ((RelabelType *) expr)->arg;

There are 10 instances of this exact loop scattered around the codebase.
Is it worth it turning it into a static inline function?

- ilmari
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