bug: 'alter table' in psql

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POSTGRESQL BUG REPORT TEMPLATE
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Your name : Signal 11
Your email address : signal11@mediaone.net

System Configuration
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Architecture (example: Intel Pentium) : K6/350

Operating System (example: Linux 2.0.26 ELF) : Linux 2.2.9 i686

PostgreSQL version (example: PostgreSQL-6.4.2) : 6.4.2-3

Compiler used (example: gcc 2.8.0) : gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)

Please enter a FULL description of your problem:
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alter table authentication add group char(64);
ERROR: parser: parse error at or near "group"
^^ above command fails when passed to psql.

Please describe a way to repeat the problem. Please try to provide a
concise reproducible example, if at all possible:
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- open psql and connect to any random database.
- type in 'alter table $YOUR_TABLE_NAME add group char(64);' and
submit it to the backend. (the type doesn't matter)

If you know how this problem might be fixed, list the solution below:
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pgsql's sql parser is probably assuming you want to use the keyword
'group' (ie: the "grant" command) instead of the name group to name
your field.

As an aside, I ran into this while trying to create some authentication
stuff for my website. I can use "groups" instead without any problem..
but it's something you guys might want to look into - there might be
other bugs lurking in the parser that won't be so easy to find as this
one.

Ciao!