| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Cary Huang <cary(dot)huang(at)highgo(dot)ca> |
| Cc: | "Pgsql Hackers" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: minor problem in boolean cast |
| Date: | 2020-10-24 00:04:35 |
| Message-ID: | 280256.1603497875@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Cary Huang <cary(dot)huang(at)highgo(dot)ca> writes:
> I noticed that when casting a string to boolean value with input 'of' it still cast it to 'f'. I think with 'of', it should give an error because 'off' is the expected candidate. This may not be intended so I made a simple patch to address this.
It's absolutely intended, and documented:
https://www.postgresql.org/docs/devel/datatype-boolean.html
Note the bit about "Unique prefixes of these strings are also accepted".
The code comment just above parse_bool() says the same.
regards, tom lane
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