Re: *Regarding brin_index on required column of the table

From: Durgamahesh Manne <maheshpostgres9(at)gmail(dot)com>
To: Alban Hertroys <haramrae(at)gmail(dot)com>
Cc: pgsql-general(at)lists(dot)postgresql(dot)org, andreas(at)a-kretschmer(dot)de
Subject: Re: *Regarding brin_index on required column of the table
Date: 2018-09-21 15:13:21
Message-ID: CAJCZkoKnRJ+NrvTS0A5UUnJ1OY5-LJOWcgAeJ9Uef6x8WMCfiw@mail.gmail.com
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Lists: pgsql-general

query is below

SELECT distinct Max(v."vchSubmittersCode") as vchSubmittersCode ,
Max(v."vchRecordType") as vchRecordType , Max(v."vchSequenceNumber") as
vchSequenceNumber , v."vchContractNumber" ,"vchContractPartyRoleQualifier"
,"vchPartyRole" ,Max("vchPartyNatural_Non_NaturalEntity") as
vchPartyNatural_Non_NaturalEntity , Max("vchPartyLastName") as
vchPartyLastName ,Max("vchPartyFirstName") as
vchPartyFirstName,Max("vchPartyMiddleName") as vchPartyMiddleName,
Max("vchPartyPrefix") as vchPartyPrefix ,Max("vchPartySuffix") as
vchPartySuffix, NULL "vchContractEntityE_mailAddress", "vchPartyID" ,
Max("vchPartyIDQualifier") as vchPartyIDQualifier
,Max("vchTrustRevocabilityIndicator") as
vchTrustRevocabilityIndicator,NULL "vchContractEntityPhoneNumber",NULL
"vchContractEntityPhoneExtension",Max(v."vchFiller1") as
vchFiller1,Max(v."vchRejectCode") as vchRejectCode,
Max("vchContractEntityAddressLine1") as vchContractEntityAddressLine1,
Max("vchContractEntityAddressLine2") as vchContractEntityAddressLine2,
Max("vchContractEntityCity") as vchContractEntityCity,
Max("vchContractEntityState") as vchContractEntityState,
Max("vchContractEntityZip") as vchContractEntityZip,
Max("vchContractEntityAddressLine3") as vchContractEntityAddressLine3,
Max("vchContractEntityAddressLine4") as vchContractEntityAddressLine4,
Max("vchContractEntityAddressLine5") as vchContractEntityAddressLine5
,Max("vchPartyDateofBirth") as vchPartyDateofBirth,
Max("vchPartyAddressLine1") as vchPartyAddressLine1,
Max("vchContractStatus") as vchContractStatus, string_agg(distinct
trim(s."vchAgentTaxID"),',') as vchAgentTaxID , "vchPartyRole"
,Max(v."vchAdvisorLabel") as
vchAdvisorLabel,v."vchFileName",Max("vchpartycity") as
vchpartycity,Max("vchpartystate") as
vchpartystate,Max("vchpartypostalcode") as vchpartypostalcode
,string_agg(distinct trim(s."vchAgentFirstName")||'
'||trim(s."vchAgentMiddleName")||' '||trim(s."vchAgentLastName"),',') as
"AgentName" FROM TABLE1 as v join"DTCC".TABLE2 AS s on
v."vchContractNumber" = s."vchContractNumber" where v."bFetch" = false
GROUP BY "vchPartyRole",v."vchFileName","vchPartyID" ,"vchPartyRole"
,"vchContractPartyRoleQualifier" , v."vchContractNumber" UNION SELECT
distinct max(j."vchSubmittersCode") as
vchSubmittersCode,max(j."vchRecordType") as
vchRecordType,max(j."vchSequenceNumber") as vchSequenceNumber ,
j."vchContractNumber" , max("vchContractEntityTypeCode") as
vchContractEntityTypeCode,"vchContractEntityRole"
,max("vchContractEntityNatural_Non_NaturalNameIndicator") as
vchContractEntityNatural_Non_NaturalNameIndicator
,max("vchContractEntityLastName") as vchContractEntityLastName ,
max("vchContractEntityFirstName") as vchContractEntityFirstName ,
max("vchContractEntityMiddleName") as vchContractEntityMiddleName ,
max("vchContractEntityPrefix") as vchContractEntityPrefix ,
max("vchContractEntitySuffix") as vchContractEntitySuffix,
max("vchContractEntityE_mailAddress") as vchContractEntityE_mailAddress,
"vchContractEntityPersonalIdentifier" ,
max("vchContractEntityPersonalQualifier") as
vchContractEntityPersonalQualifier, max("vchTrustRevocabilityIndicator") as
vchTrustRevocabilityIndicator, max("vchContractEntityPhoneNumber") as
vchContractEntityPhoneNumber, max("vchContractEntityPhoneExtension") as
vchContractEntityPhoneExtension, max(j."vchFiller1") as vchFiller1,
max(j."vchRejectCode") as vchRejectCode,
max("vchcontractentityaddressline1") as vchcontractentityaddressline1
,max("vchcontractentityaddressline2") as
vchcontractentityaddressline2,max("vchcontractentitycity") as
vchcontractentitycity, max("vchcontractentitystate") as
vchcontractentitystate,max("vchcontractentityzip") as vchcontractentityzip,
max("vchcontractentityaddressline3") as
vchcontractentityaddressline3,max("vchcontractentityaddressline4") as
vchcontractentityaddressline4,max("vchcontractentityaddressline5") as
vchcontractentityaddressline5, NULL "vchPartyDateofBirth", NULL
"vchPartyAddressLine1", NULL "vchContractStatus", string_agg(distinct
trim(j."vchagenttaxid"),',') as vchagenttaxid, "vchContractEntityRole" ,
max(j."vchAdvisorLabel") as vchAdvisorLabel,j."vchFileName",NULL
"vchpartycity", NULL "vchpartystate",NULL "vchpartypostalcode",
trim(max(k."vchAgentFirstName"))||' '||trim(max(k."vchAgentMiddleName"))||'
'||trim(max(k."vchAgentLastName")) as "AgentName" FROM TABLE3 as j join
TABLE2 AS k on j."vchagenttaxid" = k."vchAgentTaxID" where j."bFetch" =
false GROUP BY j."vchFileName","vchContractEntityRole" ,
"vchContractEntityRole",j."vchContractNumber","vchContractEntityPersonalIdentifier";

On Fri, Sep 21, 2018 at 8:40 PM Durgamahesh Manne <maheshpostgres9(at)gmail(dot)com>
wrote:

> Failed to parse the query plan when i submitted query at
> https://explain.depesz.com/
>
> below is the query plan for the complex query as So i need to execute
> below query at less time
>
>
>
> HashAggregate (cost=16034967.98..16035010.75 rows=4277 width=1710)
> (actual time=1806653.536..1806680.802 rows=26098 loops=1)
>
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> |
> >> | Group Key: (max((v."vchSubmittersCode")::text)),
> (max((v."vchRecordType")::text)), (max((v."vchSequenceNumber")::text)),
> v."vchContractNumber", v."vchContractPartyRoleQualifier", v."vchPartyRole",
> (max((v."vchPartyNatural_Non_NaturalEntity")::text)),
> (max((v."vchPartyLastName")::text)), (max((v."vchPartyFirstName")::text)),
> (max((v."vchPartyMiddleName")::text)), (max((v."vchPartyPrefix")::text)),
> (max((v."vchPartySuffix")::text)), (NULL::text), v."vchPartyID",
> (max((v."vchPartyIDQualifier")::text)),
> (max((v."vchTrustRevocabilityIndicator")::text)), (NULL::text),
> (NULL::text), (max((v."vchFiller1")::text)),
> (max((v."vchRejectCode")::text)),
> (max((v."vchContractEntityAddressLine1")::text)),
> (max((v."vchContractEntityAddressLine2")::text)),
> (max((v."vchContractEntityCity")::text)),
> (max((v."vchContractEntityState")::text)),
> (max((v."vchContractEntityZip")::text)),
> (max((v."vchContractEntityAddressLine3")::text)),
> (max((v."vchContractEntityAddressLine4")::text)),
> (max((v."vchContractEntityAddressLine5")::text)),
> (max((v."vchPartyDateofBirth")::text)),
> (max((v."vchPartyAddressLine1")::text)),
> (max((v."vchContractStatus")::text)), (string_agg(DISTINCT
> btrim((s."vchAgentTaxID")::text), ','::text)), v."vchPartyRole",
> (max((v."vchAdvisorLabel")::text)), v."vchFileName",
> (max((v.vchpartycity)::text)), (max((v.vchpartystate)::text)),
> (max((v.vchpartypostalcode)::text)), (string_agg(DISTINCT
> ((((btrim((s."vchAgentFirstName")::text) || ' '::text) ||
> btrim((s."vchAgentMiddleName")::text)) || ' '::text) ||
> btrim((s."vchAgentLastName")::text)), ','::text)) |
> >> | -> Append (cost=48944.67..16034550.97 rows=4277 width=1710)
> (actual time=3324.233..1806605.691 rows=26098 loops=1)
>
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> |
> >> | -> Unique (cost=48944.67..49103.43 rows=1764 width=1145)
> (actual time=3324.233..3327.824 rows=3637 loops=1)
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> |
> >> | -> Sort (cost=48944.67..48949.08 rows=1764
> width=1145) (actual time=3324.232..3324.447 rows=3637 loops=1)
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> |
> >> | Sort Key: (max((v."vchSubmittersCode")::text)),
> (max((v."vchRecordType")::text)), (max((v."vchSequenceNumber")::text)),
> v."vchContractNumber", v."vchContractPartyRoleQualifier", v."vchPartyRole",
> (max((v."vchPartyNatural_Non_NaturalEntity")::text)),
> (max((v."vchPartyLastName")::text)), (max((v."vchPartyFirstName")::text)),
> (max((v."vchPartyMiddleName")::text)), (max((v."vchPartyPrefix")::text)),
> (max((v."vchPartySuffix")::text)), v."vchPartyID",
> (max((v."vchPartyIDQualifier")::text)),
> (max((v."vchTrustRevocabilityIndicator")::text)),
> (max((v."vchFiller1")::text)), (max((v."vchRejectCode")::text)),
> (max((v."vchContractEntityAddressLine1")::text)),
> (max((v."vchContractEntityAddressLine2")::text)),
> (max((v."vchContractEntityCity")::text)),
> (max((v."vchContractEntityState")::text)),
> (max((v."vchContractEntityZip")::text)),
> (max((v."vchContractEntityAddressLine3")::text)),
> (max((v."vchContractEntityAddressLine4")::text)),
> (max((v."vchContractEntityAddressLine5")::text)),
> (max((v."vchPartyDateofBirth")::text)),
> (max((v."vchPartyAddressLine1")::text)),
> (max((v."vchContractStatus")::text)), (string_agg(DISTINCT
> btrim((s."vchAgentTaxID")::text), ','::text)),
> (max((v."vchAdvisorLabel")::text)), v."vchFileName",
> (max((v.vchpartycity)::text)), (max((v.vchpartystate)::text)),
> (max((v.vchpartypostalcode)::text)), (string_agg(DISTINCT
> ((((btrim((s."vchAgentFirstName")::text) || ' '::text) ||
> btrim((s."vchAgentMiddleName")::text)) || ' '::text) ||
> btrim((s."vchAgentLastName")::text)), ','::text))
> |
> >> | Sort Method: quicksort Memory: 3366kB
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> |
> >> | -> GroupAggregate (cost=26241.74..48849.55
> rows=1764 width=1145) (actual time=1451.987..3297.428 rows=3637 loops=1)
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> |
> >> | Group Key: v."vchPartyRole",
> v."vchFileName", v."vchPartyID", v."vchContractPartyRoleQualifier",
> v."vchContractNumber"
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> |
> >> | -> Sort (cost=26241.74..26754.95
> rows=205285 width=709) (actual time=1451.641..1474.286 rows=232227
> loops=1)
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> >> | Sort Key: v."vchPartyRole",
> v."vchFileName", v."vchPartyID", v."vchContractPartyRoleQualifier",
> v."vchContractNumber"
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> >> | Sort Method: quicksort Memory:
> 241964kB
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> |
> >> | -> Merge Join (cost=23.03..8128.14
> rows=205285 width=709) (actual time=0.072..220.689 rows=232227 loops=1)
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> |
> >> | Merge Cond:
> ((v."vchContractNumber")::text = (s."vchContractNumber")::text)
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> |
> >> | -> Index Scan using cpr_idx1
> on "table1" v (cost=0.28..221.46 rows=4200 width=602) (actual
> time=0.030..3.283 rows=4200 loops=1)
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> |
> >> | -> Materialize
> (cost=0.42..5130.71 rows=125522 width=138) (actual time=0.007..116.095
> rows=249620 loops=1)
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> |
> >> | -> Index Scan using
> cpr_idx2 on "table2" s (cost=0.42..4816.91 rows=125522 width=138) (actual
> time=0.005..81.432 rows=125522 loops=1)
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> |
> >> | -> Subquery Scan on "*SELECT* 2"
> (cost=15985197.45..15985429.90 rows=2513 width=1180) (actual
> time=1803251.051..1803276.051 rows=22461 loops=1)
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> >> | -> Unique (cost=15985197.45..15985404.77 rows=2513
> width=1180) (actual time=1803251.046..1803266.512 rows=22461 loops=1)
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> |
> >> | -> Sort (cost=15985197.45..15985203.73
> rows=2513 width=1180) (actual time=1803251.043..1803253.167 rows=22461
> loops=1)
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> |
> >> | Sort Key:
> (max((j."vchSubmittersCode")::text)), (max((j."vchRecordType")::text)),
> (max((j."vchSequenceNumber")::text)), j."vchContractNumber",
> (max((j."vchContractEntityTypeCode")::text)), j."vchContractEntityRole",
> (max((j."vchContractEntityNatural_Non_NaturalNameIndicator")::text)),
> (max((j."vchContractEntityLastName")::text)),
> (max((j."vchContractEntityFirstName")::text)),
> (max((j."vchContractEntityMiddleName")::text)),
> (max((j."vchContractEntityPrefix")::text)),
> (max((j."vchContractEntitySuffix")::text)),
> (max((j."vchContractEntityE_mailAddress")::text)),
> j."vchContractEntityPersonalIdentifier",
> (max((j."vchContractEntityPersonalQualifier")::text)),
> (max((j."vchTrustRevocabilityIndicator")::text)),
> (max((j."vchContractEntityPhoneNumber")::text)),
> (max((j."vchContractEntityPhoneExtension")::text)),
> (max((j."vchFiller1")::text)), (max((j."vchRejectCode")::text)),
> (max((j.vchcontractentityaddressline1)::text)),
> (max((j.vchcontractentityaddressline2)::text)),
> (max((j.vchcontractentitycity)::text)),
> (max((j.vchcontractentitystate)::text)),
> (max((j.vchcontractentityzip)::text)),
> (max((j.vchcontractentityaddressline3)::text)),
> (max((j.vchcontractentityaddressline4)::text)),
> (max((j.vchcontractentityaddressline5)::text)), (string_agg(DISTINCT
> btrim((j.vchagenttaxid)::text), ','::text)),
> (max((j."vchAdvisorLabel")::text)), j."vchFileName",
> (((((btrim(max((k."vchAgentFirstName")::text)) || ' '::text) ||
> btrim(max((k."vchAgentMiddleName")::text))) || ' '::text) ||
> btrim(max((k."vchAgentLastName")::text)))) |
> >> | Sort Method: quicksort Memory: 23482kB
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> |
> >> | -> GroupAggregate
> (cost=10588651.59..15985055.52 rows=2513 width=1180) (actual
> time=847482.207..1802617.045 rows=22461 loops=1)
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> |
> >> | Group Key: j."vchFileName",
> j."vchContractEntityRole", j."vchContractNumber",
> j."vchContractEntityPersonalIdentifier"
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> |
> >> | -> Sort
> (cost=10588651.59..10738549.61 rows=59959206 width=677) (actual
> time=847464.789..1486679.680 rows=61595746 loops=1)
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> |
> >> | Sort Key: j."vchFileName",
> j."vchContractEntityRole", j."vchContractNumber",
> j."vchContractEntityPersonalIdentifier"
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> |
> >> | Sort Method: external merge
> Disk: 42758304kB
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> |
> >> | -> Nested Loop
> (cost=0.42..266305.78 rows=59959206 width=677) (actual
> time=0.122..73786.837 rows=61595746 loops=1)
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> |
> >> | -> Seq Scan on "table3"
> j (cost=0.00..669.12 rows=25132 width=591) (actual time=0.021..28.338
> rows=25132 loops=1)
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> |
> >> | Filter: (NOT
> "bFetch")
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> |
> >> | -> Index Scan using
> cpr_idx4 on table2 k (cost=0.42..6.92 rows=365 width=107) (actual
> time=0.838..2.244 rows=2451 loops=25132)
>
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> |
> >> | Index Cond:
> (("vchAgentTaxID")::text = (j.vchagenttaxid)::text)
>
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> |
> >> | Planning time: 2.369 ms
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> |
> >> | Execution time: 1807771.091 ms
>
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>
> On Fri, Sep 21, 2018 at 8:01 PM Alban Hertroys <haramrae(at)gmail(dot)com> wrote:
>
>> Your plan is not readable to me (perhaps because of gmail). Does
>> https://explain.depesz.com/ give you any useful insights?
>> On Fri, 21 Sep 2018 at 16:15, Durgamahesh Manne
>> <maheshpostgres9(at)gmail(dot)com> wrote:
>> >
>> >
>> > On Fri, Sep 21, 2018 at 7:38 PM Durgamahesh Manne <
>> maheshpostgres9(at)gmail(dot)com> wrote:
>> >>
>> >> Hi
>> >>
>> >> Complex query taken around 30 minutes to execute even i have increased
>> work_mem value to 4GB temporarily as total ram is 16gb
>> >>
>> >> Explain analyze query taken around 30 minutes to execute even i have
>> created partial indexes with where condition on required columns
>> >>
>> >>
>> >>
>> >> Below is the query plan for explain analyze query :
>> >>
>> >> | HashAggregate (cost=16034967.98..16035010.75 rows=4277 width=1710)
>> (actual time=1806653.536..1806680.802 rows=26098 loops=1)
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> |
>> >> | Group Key: (max((v."vchSubmittersCode")::text)),
>> (max((v."vchRecordType")::text)), (max((v."vchSequenceNumber")::text)),
>> v."vchContractNumber", v."vchContractPartyRoleQualifier", v."vchPartyRole",
>> (max((v."vchPartyNatural_Non_NaturalEntity")::text)),
>> (max((v."vchPartyLastName")::text)), (max((v."vchPartyFirstName")::text)),
>> (max((v."vchPartyMiddleName")::text)), (max((v."vchPartyPrefix")::text)),
>> (max((v."vchPartySuffix")::text)), (NULL::text), v."vchPartyID",
>> (max((v."vchPartyIDQualifier")::text)),
>> (max((v."vchTrustRevocabilityIndicator")::text)), (NULL::text),
>> (NULL::text), (max((v."vchFiller1")::text)),
>> (max((v."vchRejectCode")::text)),
>> (max((v."vchContractEntityAddressLine1")::text)),
>> (max((v."vchContractEntityAddressLine2")::text)),
>> (max((v."vchContractEntityCity")::text)),
>> (max((v."vchContractEntityState")::text)),
>> (max((v."vchContractEntityZip")::text)),
>> (max((v."vchContractEntityAddressLine3")::text)),
>> (max((v."vchContractEntityAddressLine4")::text)),
>> (max((v."vchContractEntityAddressLine5")::text)),
>> (max((v."vchPartyDateofBirth")::text)),
>> (max((v."vchPartyAddressLine1")::text)),
>> (max((v."vchContractStatus")::text)), (string_agg(DISTINCT
>> btrim((s."vchAgentTaxID")::text), ','::text)), v."vchPartyRole",
>> (max((v."vchAdvisorLabel")::text)), v."vchFileName",
>> (max((v.vchpartycity)::text)), (max((v.vchpartystate)::text)),
>> (max((v.vchpartypostalcode)::text)), (string_agg(DISTINCT
>> ((((btrim((s."vchAgentFirstName")::text) || ' '::text) ||
>> btrim((s."vchAgentMiddleName")::text)) || ' '::text) ||
>> btrim((s."vchAgentLastName")::text)), ','::text)) |
>> >> | -> Append (cost=48944.67..16034550.97 rows=4277 width=1710)
>> (actual time=3324.233..1806605.691 rows=26098 loops=1)
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> |
>> >> | -> Unique (cost=48944.67..49103.43 rows=1764 width=1145)
>> (actual time=3324.233..3327.824 rows=3637 loops=1)
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
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>> |
>> >> | -> Sort (cost=48944.67..48949.08 rows=1764
>> width=1145) (actual time=3324.232..3324.447 rows=3637 loops=1)
>>
>>
>>
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>>
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>> |
>> >> | Sort Key: (max((v."vchSubmittersCode")::text)),
>> (max((v."vchRecordType")::text)), (max((v."vchSequenceNumber")::text)),
>> v."vchContractNumber", v."vchContractPartyRoleQualifier", v."vchPartyRole",
>> (max((v."vchPartyNatural_Non_NaturalEntity")::text)),
>> (max((v."vchPartyLastName")::text)), (max((v."vchPartyFirstName")::text)),
>> (max((v."vchPartyMiddleName")::text)), (max((v."vchPartyPrefix")::text)),
>> (max((v."vchPartySuffix")::text)), v."vchPartyID",
>> (max((v."vchPartyIDQualifier")::text)),
>> (max((v."vchTrustRevocabilityIndicator")::text)),
>> (max((v."vchFiller1")::text)), (max((v."vchRejectCode")::text)),
>> (max((v."vchContractEntityAddressLine1")::text)),
>> (max((v."vchContractEntityAddressLine2")::text)),
>> (max((v."vchContractEntityCity")::text)),
>> (max((v."vchContractEntityState")::text)),
>> (max((v."vchContractEntityZip")::text)),
>> (max((v."vchContractEntityAddressLine3")::text)),
>> (max((v."vchContractEntityAddressLine4")::text)),
>> (max((v."vchContractEntityAddressLine5")::text)),
>> (max((v."vchPartyDateofBirth")::text)),
>> (max((v."vchPartyAddressLine1")::text)),
>> (max((v."vchContractStatus")::text)), (string_agg(DISTINCT
>> btrim((s."vchAgentTaxID")::text), ','::text)),
>> (max((v."vchAdvisorLabel")::text)), v."vchFileName",
>> (max((v.vchpartycity)::text)), (max((v.vchpartystate)::text)),
>> (max((v.vchpartypostalcode)::text)), (string_agg(DISTINCT
>> ((((btrim((s."vchAgentFirstName")::text) || ' '::text) ||
>> btrim((s."vchAgentMiddleName")::text)) || ' '::text) ||
>> btrim((s."vchAgentLastName")::text)), ','::text))
>> |
>> >> | Sort Method: quicksort Memory: 3366kB
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> |
>> >> | -> GroupAggregate (cost=26241.74..48849.55
>> rows=1764 width=1145) (actual time=1451.987..3297.428 rows=3637 loops=1)
>>
>>
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>>
>>
>>
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>>
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>> |
>> >> | Group Key: v."vchPartyRole",
>> v."vchFileName", v."vchPartyID", v."vchContractPartyRoleQualifier",
>> v."vchContractNumber"
>>
>>
>>
>>
>>
>>
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>>
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>>
>>
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>>
>>
>> |
>> >> | -> Sort (cost=26241.74..26754.95
>> rows=205285 width=709) (actual time=1451.641..1474.286 rows=232227
>> loops=1)
>>
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>>
>>
>> |
>> >> | Sort Key: v."vchPartyRole",
>> v."vchFileName", v."vchPartyID", v."vchContractPartyRoleQualifier",
>> v."vchContractNumber"
>>
>>
>>
>>
>>
>>
>>
>>
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>> |
>> >> | Sort Method: quicksort Memory:
>> 241964kB
>>
>>
>>
>>
>>
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>>
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>>
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>>
>>
>
>

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