The error would encounter when IN clause is rewritten into Join, and
planner chooses to use distributed join (involves a Hash Exchange).  For
distributed join,  when two join keys do not have same types, only certain
type of implicit cast will be allowed.  In Khurram's case, I think the
query is not using hash-distributed join method, and hence did not hit this

On Fri, Jul 14, 2017 at 12:17 PM, Khurram Faraaz <[EMAIL PROTECTED]> wrote:
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