Subject | Re: [firebird-support] Query that was very fast under the oldest 2.5 versions are very slow under 2.5.8 or 2.5.9 |
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Author | |
Post date | 2019-05-27T14:25:25Z |
Hello Karol; here you have both query plans, excecuted over same FDB file, on the same machine:
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FIREBIRD 2.5.0:
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Preparing query: select "PROC"."PROC","PROC"."CARP","PROC"."ACTO","PROC"."DEMA","PROC"."OBSE","TPRO"."DSCR" as "D_TPRO","PROC"."OJUD","PROC"."INST","PROC"."EXP1","PROC"."EXP2","PROC"."EXP3","PROC"."EXP4" from "PROC" left outer join "TPRO" on "PROC"."TPRO"="TPRO"."TPRO" left outer join "OJUD" o1 on "PROC"."OJUD"=o1."OJUD" left outer join "ZONA" o2 on o1."ZONA"=o2."ZONA" where ((("PROC"."PROC" in (select distinct "PROC" from "MOVI" where "MOVI"."TIPO" in ('1','A','B') and ("MOVI"."FECH" between '20190301' and '20190412') and "MOVI"."MIEM" = '15JMS45D7A' and "MOVI"."HECH" = 'N' order by "PROC")))) order by o2."ORDE",o1."ORDE",lower("PROC"."ACTO"),lower("PROC"."DEMA")
Prepare time: 1.498s
Field #01: PROC.PROC Alias:PROC Type:STRING(10)
Field #02: PROC.CARP Alias:CARP Type:STRING(18)
Field #03: PROC.ACTO Alias:ACTO Type:STRING(200)
Field #04: PROC.DEMA Alias:DEMA Type:STRING(200)
Field #05: PROC.OBSE Alias:OBSE Type:STRING(120)
Field #06: TPRO.DSCR Alias:D_TPRO Type:STRING(120)
Field #07: PROC.OJUD Alias:OJUD Type:STRING(10)
Field #08: PROC.INST Alias:INST Type:STRING(1)
Field #09: PROC.EXP1 Alias:EXP1 Type:STRING(18)
Field #10: PROC.EXP2 Alias:EXP2 Type:STRING(18)
Field #11: PROC.EXP3 Alias:EXP3 Type:STRING(18)
Field #12: PROC.EXP4 Alias:EXP4 Type:STRING(18)
PLAN SORT ((MOVI INDEX (MOVI_PROC, MOVI_FECH)))
PLAN SORT (JOIN (JOIN (JOIN (PROC NATURAL, TPRO INDEX (TPRO_PK)), O1 INDEX (OJUD_PK)), O2 INDEX (ZONA_PK)))
Executing...
Done.
3051054 fetches, 8 marks, 17180 reads, 8 writes.
0 inserts, 0 updates, 0 deletes, 148293 index, 52648 seq.
Delta memory: 79112 bytes.
Total execution time: 0:01:34 (hh:mm:ss)
Script execution finished.
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FIREBIRD 2.5.8:
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Preparing query: select "PROC"."PROC","PROC"."CARP","PROC"."ACTO","PROC"."DEMA","PROC"."OBSE","TPRO"."DSCR" as "D_TPRO","PROC"."OJUD","PROC"."INST","PROC"."EXP1","PROC"."EXP2","PROC"."EXP3","PROC"."EXP4" from "PROC" left outer join "TPRO" on "PROC"."TPRO"="TPRO"."TPRO" left outer join "OJUD" o1 on "PROC"."OJUD"=o1."OJUD" left outer join "ZONA" o2 on o1."ZONA"=o2."ZONA" where ((("PROC"."PROC" in (select distinct "PROC" from "MOVI" where "MOVI"."TIPO" in ('1','A','B') and ("MOVI"."FECH" between '20190301' and '20190412') and "MOVI"."MIEM" = '15JMS45D7A' and "MOVI"."HECH" = 'N' order by "PROC")))) order by o2."ORDE",o1."ORDE",lower("PROC"."ACTO"),lower("PROC"."DEMA")
Prepare time: 0.031s
Field #01: PROC.PROC Alias:PROC Type:STRING(10)
Field #02: PROC.CARP Alias:CARP Type:STRING(18)
Field #03: PROC.ACTO Alias:ACTO Type:STRING(200)
Field #04: PROC.DEMA Alias:DEMA Type:STRING(200)
Field #05: PROC.OBSE Alias:OBSE Type:STRING(120)
Field #06: TPRO.DSCR Alias:D_TPRO Type:STRING(120)
Field #07: PROC.OJUD Alias:OJUD Type:STRING(10)
Field #08: PROC.INST Alias:INST Type:STRING(1)
Field #09: PROC.EXP1 Alias:EXP1 Type:STRING(18)
Field #10: PROC.EXP2 Alias:EXP2 Type:STRING(18)
Field #11: PROC.EXP3 Alias:EXP3 Type:STRING(18)
Field #12: PROC.EXP4 Alias:EXP4 Type:STRING(18)
PLAN SORT ((MOVI INDEX (MOVI_PROC)))
PLAN SORT (JOIN (JOIN (JOIN (PROC NATURAL, TPRO INDEX (TPRO_PK)), O1 INDEX (OJUD_PK)), O2 INDEX (ZONA_PK)))
Executing...
Done.
2458464 fetches, 8 marks, 843116 reads, 8 writes.
0 inserts, 0 updates, 0 deletes, 1076748 index, 53232 seq.
Delta memory: 221664 bytes.
Total execution time: 0:20:40 (hh:mm:ss)
Script execution finish
Thank you!!!