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From: Tomas Vondra <tomas.vondra@enterprisedb.com>
To: Dean Rasheed <dean.a.rasheed@gmail.com>
Cc: Justin Pryzby <pryzby@telsasoft.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Subject: Re: PoC/WIP: Extended statistics on expressions
Date: Sat, 27 Mar 2021 03:11:30 +0100
Message-ID: <b650920b-2767-fbc3-c87a-cb8b5d693cbf@enterprisedb.com> (raw)
In-Reply-To: <078de413-8e4e-343e-fac1-eb61fd389925@enterprisedb.com>
References: <f0f7e00c-7ccb-9412-0147-a06a60777f06@enterprisedb.com>
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	<9f6654b1-ca31-f979-0fe8-137683818273@enterprisedb.com>
	<20210324081402.GB28335@telsasoft.com>
	<b8359875-b91f-ff48-4c6c-9b3c1c35d880@enterprisedb.com>
	<20210324091708.GC28335@telsasoft.com>
	<1ff3fc47-8f6e-7839-c3ff-6b694956f92e@enterprisedb.com>
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	<e4556e47-940d-58a6-73fd-16c5815dd2cd@enterprisedb.com>
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	<a7d17aec-234d-c7f2-bfdc-99c87767a507@enterprisedb.com>
	<1ed534fb-b42b-f008-35ee-4eb930b0088f@enterprisedb.com>
	<CAEZATCV-JgFzb6aCJxApXg302u4vw+ajj702RHaBVkS_4JPVRg@mail.gmail.com>
	<2cb8a7cd-664f-8681-6ce9-790a50e3c78f@enterprisedb.com>
	<CAEZATCXsfFcXW_A1XCd5QK6zT2M_V+P3aPSktjibHHPzoV+Y-A@mail.gmail.com>
	<096d26e1-f053-a039-047d-a050dbb80ac6@enterprisedb.com>
	<078de413-8e4e-343e-fac1-eb61fd389925@enterprisedb.com>



On 3/27/21 1:17 AM, Tomas Vondra wrote:
> On 3/26/21 1:54 PM, Tomas Vondra wrote:
>>
>>
>> On 3/26/21 12:37 PM, Dean Rasheed wrote:
>>> On Thu, 25 Mar 2021 at 19:59, Tomas Vondra
>>> <tomas.vondra@enterprisedb.com> wrote:
>>>>
>>>> Attached is an updated patch series, with all the changes discussed
>>>> here. I've cleaned up the ndistinct stuff a bit more (essentially
>>>> reverting back from GroupExprInfo to GroupVarInfo name), and got rid of
>>>> the UpdateStatisticsForTypeChange.
>>>>
>>>
>>> I've looked over all that and I think it's in pretty good shape. I
>>> particularly like how much simpler the ndistinct code has now become.
>>>
>>> Some (hopefully final) review comments:
>>>
>>> ...
>>>
>>
>> Thanks! I'll fix these, and then will consider getting it committed
>> sometime later today, once the buildfarm does some testing on the other
>> stuff I already committed.
>>
> 
> OK, pushed after a bit more polishing and testing. I've noticed one more
> missing piece in describe (expressions missing in \dX), so I fixed that.
> 
> May the buildfarm be merciful ...
> 

LOL! It failed on *my* buildfarm machine, because apparently some of the
expressions used in stats_ext depend on locale and the machine is using
cs_CZ.UTF-8. Will fix later ...

regards

-- 
Tomas Vondra
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company





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