[bug report] A sql statements make query hang

Hi,

When we run follow statements make query hang and never return in PostgreSQL 13devel, we consider it might be a bug of PostgreSQL and report it.

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CREATE TEMPORARY TABLE v0 ( v1 INT UNIQUE ) ;

WITH RECURSIVE v0 ( v1 ) AS ( SELECT -128 UNION SELECT v1 + 33 FROM v0 ) SELECT 'x' from v0;

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When we run in mysql, it suddenly return an empty set.

Best,

Yongheng & Rui