Bad result?

Hello ,

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POSTGRESQL BUG REPORT TEMPLATE
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Your name : Vladimir Kamaev
Your email address : kamaev(at)zodchiy(dot)ru

System Configuration
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Architecture (example: Intel Pentium) : Intel Pentium II
Operating System (example: Linux 2.0.26 ELF) : Linux 2.2.10
PostgreSQL version (example: PostgreSQL-6.5.3): PostgreSQL-6.5.3
Compiler used (example: gcc 2.8.0) : gcc-2.7.2.3

Please enter a FULL description of your problem:
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Bad result?

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test=> \i 00
CREATE TABLE test ( num int4, price float );
CREATE

SELECT num, max( price ) FROM test GROUP BY num;
num|max
---+---
|
(1 row)

DROP TABLE test;
DROP
EOF

test=>
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Please describe a way to repeat the problem. Please try to provide a
concise reproducible example, if at all possible:
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If you know how this problem might be fixed, list the solution below:
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Best regards,
Kamaev mailto:kamaev(at)zodchiy(dot)ru