after vacuum analyze, explain still wrong
| От | Sim Zacks |
|---|---|
| Тема | after vacuum analyze, explain still wrong |
| Дата | |
| Msg-id | h1pree$1691$1@news.hub.org обсуждение исходный текст |
| Ответы |
Re: after vacuum analyze, explain still wrong
(Sim Zacks <sim@compulab.co.il>)
|
| Список | pgsql-general |
I ran vacuum analyze and immediately after I ran my query and the
estimated rows are way off. I suspect that it is something in my
configuration, but I don't know what.
I pasted my postgresql.conf file under the explain results.
Thank you
Sim
GroupAggregate (cost=4542.87..4543.12 rows=1 width=32) (actual
time=150947.014..150984.246 rows=83 loops=1)
-> GroupAggregate (cost=4542.87..4543.03 rows=1 width=120) (actual
time=150946.978..150975.130 rows=3754 loops=1)
-> Sort (cost=4542.87..4542.88 rows=3 width=120) (actual
time=150946.949..150950.724 rows=7123 loops=1)
Sort Key: a.assembliesbatchid, a.duedate, a.assemblyid,
a.assemblyname, a.ownerid, a.partid, a.quantity, a.stock, a.prioruse,
a.units, a.qtyperunit, a.priorusebatch
-> Nested Loop Left Join (cost=3634.74..4542.85 rows=3
width=120) (actual time=47753.176..150896.984 rows=7123 loops=1)
Join Filter: (e.partid = a.partid)
-> GroupAggregate (cost=2679.49..2679.56 rows=1
width=89) (actual time=47702.211..47873.649 rows=3754 loops=1)
-> Sort (cost=2679.49..2679.50 rows=1
width=89) (actual time=47702.193..47755.292 rows=41197 loops=1)
Sort Key: a.assembliesbatchid,
a.duedate, a.assemblyid, a.assemblyname, a.ownerid, a.partid,
a.quantity, a.stock, a.units, a.qtyperunit, a.leadfree
-> Nested Loop Left Join
(cost=2556.68..2679.48 rows=1 width=89) (actual time=9767.220..46933.103
rows=41197 loops=1)
Join Filter: ((a.partid =
b.partid) AND ((a.ownerid IS NULL) OR (a.ownerid = 1)) AND (a.leadfree =
q.leadfree) AND ((a.duedate > c.duedate) OR ((a.duedate = c.duedate) AND
(a.assembliesbatchid > c.assembliesbatchid))))
-> GroupAggregate
(cost=2381.63..2381.68 rows=1 width=82) (actual time=9754.658..9773.515
rows=3754 loops=1)
-> Sort
(cost=2381.63..2381.64 rows=1 width=82) (actual time=9754.641..9757.533
rows=3754 loops=1)
Sort Key:
d.assembliesbatchid, d.duedate, a.assemblyid, a.assemblyname, c.ownerid,
e.partid, COALESCE(c.stock, 0::bigint), d.units, e.quantity, a.leadfree
-> Nested Loop Left
Join (cost=145.04..2381.62 rows=1 width=82) (actual
time=39.045..9726.318 rows=3754 loops=1)
-> Nested Loop
Left Join (cost=145.04..2381.33 rows=1 width=74) (actual
time=38.955..9678.057 rows=3754 loops=1)
Join
Filter: ((c.partid = e.partid) AND leadcompcheck_ab(a.leadfree,
c.leadstateid))
-> Nested
Loop (cost=145.04..2366.26 rows=1 width=62) (actual time=0.791..83.482
rows=3754 loops=1)
->
Nested Loop Left Join (cost=145.04..2365.59 rows=1 width=28) (actual
time=0.721..52.840 rows=3754 loops=1)
Filter: (f.commited IS NOT TRUE)
-> Hash Join (cost=136.62..273.55 rows=168 width=32) (actual
time=0.706..14.201 rows=3754 loops=1)
Hash Cond: (e.assembliesbatchid = d.assembliesbatchid)
-> Seq Scan on allocatedassemblies e (cost=0.00..121.45
rows=3679 width=12) (actual time=0.039..6.140 rows=3754 loops=1)
Filter: ((- quantity) <> 0)
-> Hash (cost=135.51..135.51 rows=89 width=24) (actual
time=0.612..0.612 rows=88 loops=1)
-> Bitmap Heap Scan on assembliesbatch d
(cost=17.69..135.51 rows=89 width=24) (actual time=0.122..0.521 rows=88
loops=1)
Recheck Cond: (assembliesbatchstatusid = ANY
('{1,2,4,7}'::integer[]))
-> Bitmap Index Scan on
fki_assembliesbatch_assembliesbatchstatus_id (cost=0.00..17.66 rows=89
width=0) (actual time=0.098..0.098 rows=89 loops=1)
Index Cond: (assembliesbatchstatusid = ANY
('{1,2,4,7}'::integer[]))
-> Bitmap Heap Scan on stocklog f (cost=8.43..12.44 rows=1 width=9)
(actual time=0.006..0.006 rows=0 loops=3754)
Recheck Cond: ((f.refid = d.batchid) AND (f.partid = e.partid))
Filter: (transtypeid = 3)
-> BitmapAnd (cost=8.43..8.43 rows=1 width=0) (actual
time=0.004..0.004 rows=0 loops=3754)
-> Bitmap Index Scan on referenceidsl (cost=0.00..3.62
rows=29 width=0) (actual time=0.001..0.001 rows=1 loops=3754)
Index Cond: (f.refid = d.batchid)
-> Bitmap Index Scan on ix_partsstocklog
(cost=0.00..4.54 rows=132 width=0) (actual time=0.116..0.116 rows=379
loops=67)
Index Cond: (f.partid = e.partid)
->
Index Scan using assemblies_pkey on assemblies a (cost=0.00..0.65
rows=1 width=38) (actual time=0.004..0.005 rows=1 loops=3754)
Index Cond: (d.assemblyid = a.assemblyid)
->
Function Scan on stockperowner_lead_ab c (cost=0.00..15.00 rows=5
width=20) (actual time=0.010..1.451 rows=1965 loops=3754)
Filter: (ownerid = 1)
-> Index Scan
using idx_u_assidpartid on partsassembly b (cost=0.00..0.28 rows=1
width=16) (actual time=0.008..0.009 rows=1 loops=3754)
Index
Cond: ((e.partid = b.partid) AND (b.assemblyid = a.assemblyid))
-> Hash Join
(cost=175.05..293.57 rows=169 width=25) (actual time=0.005..7.779
rows=3755 loops=3754)
Hash Cond:
(b.assembliesbatchid = c.assembliesbatchid)
-> Seq Scan on
allocatedassemblies b (cost=0.00..102.97 rows=3697 width=12) (actual
time=0.003..2.238 rows=3755 loops=3754)
-> Hash
(cost=173.93..173.93 rows=89 width=17) (actual time=2.200..2.200 rows=88
loops=1)
-> Hash Join
(cost=54.44..173.93 rows=89 width=17) (actual time=1.632..2.116 rows=88
loops=1)
Hash Cond:
(c.assemblyid = q.assemblyid)
-> Bitmap Heap
Scan on assembliesbatch c (cost=21.78..140.04 rows=89 width=20) (actual
time=0.114..0.441 rows=88 loops=1)
Recheck
Cond: ((assembliesbatchstatusid = 1) OR (assembliesbatchstatusid = 2) OR
(assembliesbatchstatusid = 4) OR (assembliesbatchstatusid = 7))
->
BitmapOr (cost=21.78..21.78 rows=89 width=0) (actual time=0.093..0.093
rows=0 loops=1)
->
Bitmap Index Scan on fki_assembliesbatch_assembliesbatchstatus_id
(cost=0.00..8.86 rows=81 width=0) (actual time=0.071..0.071 rows=81 loops=1)
Index Cond: (assembliesbatchstatusid = 1)
->
Bitmap Index Scan on fki_assembliesbatch_assembliesbatchstatus_id
(cost=0.00..4.26 rows=1 width=0) (actual time=0.003..0.003 rows=0 loops=1)
Index Cond: (assembliesbatchstatusid = 2)
->
Bitmap Index Scan on fki_assembliesbatch_assembliesbatchstatus_id
(cost=0.00..4.26 rows=1 width=0) (actual time=0.003..0.003 rows=0 loops=1)
Index Cond: (assembliesbatchstatusid = 4)
->
Bitmap Index Scan on fki_assembliesbatch_assembliesbatchstatus_id
(cost=0.00..4.31 rows=8 width=0) (actual time=0.014..0.014 rows=8 loops=1)
Index Cond: (assembliesbatchstatusid = 7)
-> Hash
(cost=20.63..20.63 rows=963 width=5) (actual time=1.506..1.506 rows=963
loops=1)
-> Seq
Scan on assemblies q (cost=0.00..20.63 rows=963 width=5) (actual
time=0.009..0.768 rows=963 loops=1)
-> Hash Join (cost=955.25..1802.66 rows=4850
width=28) (actual time=0.046..27.056 rows=669 loops=3754)
Hash Cond: (e.pnid = g.pnid)
-> Hash Join (cost=615.50..1353.75 rows=4853
width=32) (actual time=0.040..25.829 rows=669 loops=3754)
Hash Cond: (e.poid = f.poid)
-> Seq Scan on poparts e
(cost=0.00..583.48 rows=21248 width=32) (actual time=0.007..12.436
rows=21248 loops=3754)
-> Hash (cost=590.41..590.41 rows=2007
width=8) (actual time=7.297..7.297 rows=194 loops=1)
-> Seq Scan on pos f
(cost=0.00..590.41 rows=2007 width=8) (actual time=0.030..7.123 rows=194
loops=1)
Filter: ((postatusid >= 20)
AND (postatusid <= 59) AND (NOT isrfq))
-> Hash (cost=234.33..234.33 rows=8433
width=4) (actual time=13.265..13.265 rows=8433 loops=1)
-> Seq Scan on manufacturerpartpn g
(cost=0.00..234.33 rows=8433 width=4) (actual time=0.025..7.065
rows=8433 loops=1)
Total runtime: 150986.997 ms
# -----------------------------
# PostgreSQL configuration file
# -----------------------------
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# 0 selects the system default
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#---------------------------------------------------------------------------
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#bgwriter_all_percent = 0.333 # 0-100% of all buffers scanned/round
#bgwriter_all_maxpages = 5 # 0-1000 buffers max written/round
#---------------------------------------------------------------------------
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#---------------------------------------------------------------------------
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#archive_command = '' # command to use to archive a logfile segment
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# many seconds; 0 is off
#---------------------------------------------------------------------------
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#---------------------------------------------------------------------------
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#---------------------------------------------------------------------------
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#log_destination = 'stderr' # Valid values are combinations of
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# Can include strftime() escapes
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# name as the new log file will be
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# such truncation only occurs on
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# or size-driven rotation. Default is
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# happen after that time. 0 to
# disable.
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# These are relevant when logging to syslog:
#syslog_facility = 'LOCAL0'
#syslog_ident = 'postgres'
# - When to Log -
#client_min_messages = notice # Values, in order of decreasing detail:
# debug5
# debug4
# debug3
# debug2
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# notice
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# debug5
# debug4
# debug3
# debug2
# debug1
# info
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# warning
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# log
# fatal
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#log_error_verbosity = default # terse, default, or verbose messages
#log_min_error_statement = error # Values in order of increasing severity:
# debug5
# debug4
# debug3
# debug2
# debug1
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# notice
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# fatal
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#log_min_duration_statement = -1 # -1 is disabled, 0 logs all statements
# and their durations.
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# redirect_stderr
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# - What to Log -
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#debug_print_rewritten = off
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#log_disconnections = off
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# %% = '%'
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#---------------------------------------------------------------------------
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#---------------------------------------------------------------------------
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#log_planner_stats = off
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#---------------------------------------------------------------------------
# AUTOVACUUM PARAMETERS
#---------------------------------------------------------------------------
#autovacuum = off # enable autovacuum subprocess?
autovacuum = on # 'on' requires stats_start_collector
# and stats_row_level to also be on
#autovacuum_naptime = 1min # time between autovacuum runs
autovacuum_vacuum_threshold = 50 # min # of tuple updates before
# vacuum
autovacuum_analyze_threshold = 75 # min # of tuple updates before
# analyze
autovacuum_vacuum_scale_factor = 0.1 # fraction of rel size before
# vacuum
autovacuum_analyze_scale_factor = 0.05 # fraction of rel size before
# analyze
#autovacuum_freeze_max_age = 200000000 # maximum XID age before forced
vacuum
# (change requires restart)
#autovacuum_vacuum_cost_delay = -1 # default vacuum cost delay for
# autovacuum, -1 means use
# vacuum_cost_delay
#autovacuum_vacuum_cost_limit = -1 # default vacuum cost limit for
# autovacuum, -1 means use
# vacuum_cost_limit
#---------------------------------------------------------------------------
# CLIENT CONNECTION DEFAULTS
#---------------------------------------------------------------------------
# - Statement Behavior -
search_path = '"$user",public,sales' # schema names
#default_tablespace = '' # a tablespace name, '' uses
# the default
#check_function_bodies = on
#default_transaction_isolation = 'read committed'
#default_transaction_read_only = off
#statement_timeout = 0 # 0 is disabled
#vacuum_freeze_min_age = 100000000
# - Locale and Formatting -
datestyle = 'iso, mdy'
#timezone = unknown # actually, defaults to TZ
# environment setting
#timezone_abbreviations = 'Default' # select the set of available
timezone
# abbreviations. Currently, there are
# Default
# Australia
# India
# However you can also create your own
# file in share/timezonesets/.
#extra_float_digits = 0 # min -15, max 2
#client_encoding = sql_ascii # actually, defaults to database
# encoding
# These settings are initialized by initdb -- they might be changed
lc_messages = 'C' # locale for system error message
# strings
lc_monetary = 'C' # locale for monetary formatting
lc_numeric = 'C' # locale for number formatting
lc_time = 'C' # locale for time formatting
# - Other Defaults -
#explain_pretty_print = on
#dynamic_library_path = '$libdir'
#local_preload_libraries = ''
#---------------------------------------------------------------------------
# LOCK MANAGEMENT
#---------------------------------------------------------------------------
#deadlock_timeout = 1s
#max_locks_per_transaction = 64 # min 10
# (change requires restart)
# Note: each lock table slot uses ~270 bytes of shared memory, and there are
# max_locks_per_transaction * (max_connections + max_prepared_transactions)
# lock table slots.
#---------------------------------------------------------------------------
# VERSION/PLATFORM COMPATIBILITY
#---------------------------------------------------------------------------
# - Previous Postgres Versions -
add_missing_from = on
#array_nulls = on
#backslash_quote = safe_encoding # on, off, or safe_encoding
#default_with_oids = off
escape_string_warning = on
#standard_conforming_strings = off
#regex_flavor = advanced # advanced, extended, or basic
#sql_inheritance = on
# - Other Platforms & Clients -
#transform_null_equals = off
#---------------------------------------------------------------------------
# CUSTOMIZED OPTIONS
#---------------------------------------------------------------------------
#custom_variable_classes = '' # list of custom variable class names
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