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To: [email protected]
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Subject: Data Type Size Calculation
Date: Fri, 11 Feb 2022 20:12:08 +0000
Message-ID: <[email protected]> (raw)
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/13/datatype-numeric.html
Description:
> The actual storage requirement is two bytes for each group of four decimal
digits, plus three to eight bytes overhead.
Please describe what 'overhead' means.
I'd like to be able to calculate the data size of NUMBER(19,4). I can
calculate 2 bytes per 4 digits... with 19 digits, I have 5 groups of 4
digits,
so the data length I seek is 5 bytes + overhead... then I'm left hanging.
:(
Troy.
#
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