From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Scott Marlowe <smarlowe(at)g2switchworks(dot)com> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: numeric precision when raising one numeric to another. |
Date: | 2005-05-18 21:42:28 |
Message-ID: | 25606.1116452548@sss.pgh.pa.us |
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Lists: | pgsql-general pgsql-patches |
Scott Marlowe <smarlowe(at)g2switchworks(dot)com> writes:
> It appears from checking the output of exponentiation of one numeric to
> another, the output is actually in floating point. Is this normal and /
> or expected?
Yes, seeing that the only ^ operator we have is float8.
regression=# \do ^
List of operators
Schema | Name | Left arg type | Right arg type | Result type |
Description
------------+------+------------------+------------------+------------------+----------------------
pg_catalog | ^ | double precision | double precision | double precision | exponentiation (x^y)
(1 row)
regards, tom lane
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