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Re: *Regarding brin_index on required column of the table

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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@xxxxxxxxx> wrote:
>
>
> On Fri, Sep 21, 2018 at 7:38 PM Durgamahesh Manne <maheshpostgres9@xxxxxxxxx> 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)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
>> |               ->  Sort  (cost=48944.67..48949.08 rows=1764 width=1145) (actual time=3324.232..3324.447 rows=3637 loops=1)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
>> |                     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)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
>> |                           Group Key: v."vchPartyRole", v."vchFileName", v."vchPartyID", v."vchContractPartyRoleQualifier", v."vchContractNumber"                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
>> |                           ->  Sort  (cost=26241.74..26754.95 rows=205285 width=709) (actual time=1451.641..1474.286 rows=232227 loops=1)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
>> |                                 Sort Key: v."vchPartyRole", v."vchFileName", v."vchPartyID", v."vchContractPartyRoleQualifier", v."vchContractNumber"                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
>> |                                 Sort Method: quicksort  Memory: 241964kB                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
>> |                                 ->  Merge Join  (cost=23.03..8128.14 rows=205285 width=709) (actual time=0.072..220.689 rows=232227 loops=1)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
>> |                                       Merge Cond: ((v."vchContractNumber")::text = (s."vchContractNumber")::text)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
>> |                                       ->  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)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
>> |                                       ->  Materialize  (cost=0.42..5130.71 rows=125522 width=138) (actual time=0.007..116.095 rows=249620 loops=1)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
>> |                                             ->  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)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
>> |         ->  Subquery Scan on "*SELECT* 2"  (cost=15985197.45..15985429.90 rows=2513 width=1180) (actual time=1803251.051..1803276.051 rows=22461 loops=1)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
>> |               ->  Unique  (cost=15985197.45..15985404.77 rows=2513 width=1180) (actual time=1803251.046..1803266.512 rows=22461 loops=1)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
>> |                     ->  Sort  (cost=15985197.45..15985203.73 rows=2513 width=1180) (actual time=1803251.043..1803253.167 rows=22461 loops=1)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
>> |                           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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
>> |                           ->  GroupAggregate  (cost=10588651.59..15985055.52 rows=2513 width=1180) (actual time=847482.207..1802617.045 rows=22461 loops=1)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
>> |                                 Group Key: j."vchFileName", j."vchContractEntityRole", j."vchContractNumber", j."vchContractEntityPersonalIdentifier"                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
>> |                                 ->  Sort  (cost=10588651.59..10738549.61 rows=59959206 width=677) (actual time=847464.789..1486679.680 rows=61595746 loops=1)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
>> |                                       Sort Key: j."vchFileName", j."vchContractEntityRole", j."vchContractNumber", j."vchContractEntityPersonalIdentifier"                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
>> |                                       Sort Method: external merge  Disk: 42758304kB                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
>> |                                       ->  Nested Loop  (cost=0.42..266305.78 rows=59959206 width=677) (actual time=0.122..73786.837 rows=61595746 loops=1)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
>> |                                             ->  Seq Scan on "table3" j  (cost=0.00..669.12 rows=25132 width=591) (actual time=0.021..28.338 rows=25132 loops=1)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
>> |                                                   Filter: (NOT "bFetch")                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
>> |                                             ->  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)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
>> |                                                   Index Cond: (("vchAgentTaxID")::text = (j.vchagenttaxid)::text)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
>> | Planning time: 2.369 ms                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
>> | Execution time: 1807771.091 ms
>>
>>
>>  So i need to execute below query at less time. please help in
>>  optimising the complex query execution time
>>
>>
>> Regards
>>
>> Durgamahesh Manne
>
>
> So i need to execute below query at less time as i just sent query plan to mailing list
>  please help in optimising the complex query execution time
>
> 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";
>



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If you can't see the forest for the trees,
Cut the trees and you'll see there is no forest.






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