Joe Conway <[EMAIL PROTECTED]> writes:
> Tom Lane wrote:
>> As for the types, I believe that the spec pretty much dictates that we
>> apply the same type resolution algorithm as for a UNION.
> Where do I find that algorithm -- somewhere in nodeAppend.c?
select_common_type(), in the parser.
regards, tom lane
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
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