Re: BUG #13764: function ghstore_consistent() returns a wrong value if var "strategy" contains an unsupported number

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: rucsoftsec(at)163(dot)com
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #13764: function ghstore_consistent() returns a wrong value if var "strategy" contains an unsupported number
Date: 2015-11-10 15:13:11
Message-ID: 2923.1447168391@sss.pgh.pa.us
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rucsoftsec(at)163(dot)com writes:
> function ghstore_consistent() computes the consistency and return a bool
> value. It first computes the value of variable "strategy". It second
> executes different branches of the code depending of different value of
> variable "straregy". When the value of variable"strategy" is an unsupported
> strategy number, function ghstore_consistent() will executes the code in
> line 584. It means function ghstore_consistent() fails, but the value of
> variable "res" is "true" which will be returned in line 586. Therefore, does
> it need to assign "false" to variable "res" after line 584?

No, because elog(ERROR) doesn't return.

regards, tom lane

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