General Bug Report: JDBC driver metadata error

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                        POSTGRESQL BUG REPORT TEMPLATE
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Your name        : Depetrini Daniele
Your email address    : dany@nethouse.it

Category        : runtime: back-end: SQL
Severity        : non-critical

Summary: JDBC driver metadata error

System Configuration
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  Operating System   : linux 2.2.1 slackware 3.6

  PostgreSQL version : 6.4.2

  Compiler used      : gcc 2.7.2

Hardware:
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Linux nt1 2.2.1 #3 Wed Feb 10 15:34:11 CET 1999 i586 unknown
AMD k6 300, 64M ram

Versions of other tools:
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make


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Problem Description:
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With the JDBC driver, performing a query with the 'AS' clause renaming a column, the correspondig meta-data is set to
NULLvalue. 


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Test Case:
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SELECT nr AS n,squadra1.nome AS squadraA,squadra2.nome AS squadraB,valore FROM partite, squadre squadra1, squadre
squadra2,colonneWHERE (id_giornata=57)
and(squadra1.id=partite.id_squadra1)and(squadra2.id=partite.id_squadra2)and(ref_nr=nr)and(ref_schedina=10)ORDERBY nr; 
and then get the metadata from squadraA.


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Solution:
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