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From: Andres Freund <[email protected]>
To: Tomas Vondra <[email protected]>
Cc: Justin Pryzby <[email protected]>
Cc: [email protected]
Subject: Re: using extended statistics to improve join estimates
Date: Tue, 4 Jan 2022 15:55:50 -0800
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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On 2022-01-01 18:21:06 +0100, Tomas Vondra wrote:
> Here's an updated patch, rebased and fixing a couple typos reported by
> Justin Pryzby directly.

FWIW, cfbot reports a few compiler warnings:

https://cirrus-ci.com/task/6067262669979648?logs=gcc_warning#L505
[18:52:15.132] time make -s -j${BUILD_JOBS} world-bin
[18:52:22.697] mcv.c: In function ‘mcv_combine_simple’:
[18:52:22.697] mcv.c:2787:7: error: ‘reverse’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
[18:52:22.697]  2787 |    if (reverse)
[18:52:22.697]       |       ^
[18:52:22.697] mcv.c:2766:27: error: ‘index’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
[18:52:22.697]  2766 |   if (mcv->items[i].isnull[index])
[18:52:22.697]       |                           ^

Greetings,

Andres Freund

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