select count(*) from <empty table>: 0 rows or 1 rows ?
discovery=> select count(*) from publications;
count
-----
0
(1 row)
Does 1 rows is a correct result ?
Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83
Thus spake Oleg Bartunov
discovery=> select count(*) from publications;
count
-----
0
(1 row)Does 1 rows is a correct result ?
Absolutely. "SELECT COUNT(*)..." always returns exactly one row (well,
assuming that the table exists, of course) so this is correct. A return
of zero rows would imply that no information was returned but you did
get back information here, the fact that the table is empty.
--
D'Arcy J.M. Cain <darcy@{druid|vex}.net> | Democracy is three wolves
http://www.druid.net/darcy/ | and a sheep voting on
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discovery=> select count(*) from publications;
count
-----
0
(1 row)Does 1 rows is a correct result ?
Oleg
One row is returned, and that row is zero. It is correct.
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