I have an app that we have a number of tables that all have FK
relationships with the account table.
We did a massive (2900+ account, probably multi-thousand rows) delete
from all the tables, and the
delete from the account table is taking a lot of time.
druckerdb=>
select * from pg_stat_activity where procpid=19019;
datid | datname | procpid | usesysid | usename | application_name
| client_addr | client_hostname | client_port |
backend_start | xact_start |
query_start
| waiting |
current_query
-------+-----------+---------+----------+---------+------------------+-----------------+-----------------+-------------+-------------------------------+-------------------------------+-----------------------
-------+---------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
--------
16407 | druckerdb | 19019 | 16385 | drucker |
| 192.168.100.230 | blueprint-app1 | 49595 | 2013-04-30
12:16:39.774119-05 | 2013-04-30 12:18:46.630727-05 | 2013-04-30
12:47:17.63
253-05 | f | DELETE FROM account WHERE id IN
(248512512,9310573878,588120064,643694592,255393792,512884736,440139776,47448064,324337664,311361536,459276288,5013159782,5009475335,637796352,355794944,486
866944,692846592,235077632,4998139130,566034432,13591495132,47967841244,465108992,265486336,239927296,185532416,26474002862,298319872,515571712,576192512,99504409134,478150656,13601202599,703164469,363921408
,359071744,251002880,454623232,47968253184,95211488107,719454210,305463296,540147712,636289024,247595008,90916420061,457965568,404291584,313327616,76808192,332595200,180879360,259194880,284819456,392036352,9
5206827337,209453056,272498688,292159488,618659840,78029243449,81985536,83820544,123273216,78032615730,210632704,43671807462,60838681784,149291008,718645548,53805056,579272704,377552896,579862528,175570944,7
8577664,301727744,711147420,5000969673,131072000,22180216181,43662172854,58195968,184483840,216989696,237961216,186384384,502988800,146341888,30777274875,395182080,379256832,618397696,602800128,269221888,501
1399726
(1 row)
druckerdb=>
The xact_start is when the delete's started.
Is there anything I can do to:
1) find out where it is?
2) speed it up in the future?
druckerdb=> \d account
Table
"public.account"
Column | Type |
Modifiers
---------------------------------------+--------------------------+-------------------------------------------------------
id | bigint |
not null
name | character varying(64) |
not null
value_table_name | character varying(32) |
not null
version_item_id | bigint |
not null
blob_table_name | character varying(32) |
not null default 'blobs'::character varying
account_type | smallint |
not null default 1
account_status | smallint |
not null default 1
editor_licenses | integer |
not null default 1
expire_date | date |
appserver | text |
not null default 'appserver1'::text
appport | text |
not null default '8080'::text
file_space | bigint |
security_policy | integer |
not null
expiry_processed | boolean |
default false
contributor_licenses | integer |
not null default 0
valid_invite_email_domains | character varying |
allow_api_calls | boolean |
default false
allow_chat | boolean |
default true
is_template_account | boolean |
not null default false
billing_type | integer |
not null default 0
epayment_profile_id | text |
not null
instance_value_table_name | character varying(32) |
not null default 'instance_values'::character varying
show_public_stream | boolean |
not null
enable_posting | boolean |
default true
cbn_type | smallint |
not null default 0
account_roles | integer |
not null
sap_id | text |
performance_logging | smallint |
default 4
admins_access_glossary_and_all_spaces | boolean |
not null default false
signup_country_code | text |
viewer_licenses | integer |
not null default 0
glossary_id | bigint |
terms_of_use_version_accepted | integer |
terms_of_use_accepted_date | timestamp with time zone |
terms_of_use_admin_id | bigint |
terms_of_use_accepted_by_id | bigint |
eval_agreement_accepted_date | timestamp with time zone |
eval_agreement_accepted_by_id | bigint |
previous_load_duration | bigint |
not null default 0
Indexes:
"account_id_key" UNIQUE CONSTRAINT, btree (id) CLUSTER
"account_name_key" UNIQUE CONSTRAINT, btree (name)
"expire_date_idx" btree (expire_date)
Referenced by:
TABLE "account_activity" CONSTRAINT
"account_activity_account_id_fkey" FOREIGN KEY (account_id) REFERENCES
account(id)
TABLE "account_billing_info" CONSTRAINT
"account_billing_info_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "account_cleaving" CONSTRAINT
"account_cleaving_account_id_fkey" FOREIGN KEY (account_id) REFERENCES
account(id)
TABLE "account_locked_by" CONSTRAINT
"account_locked_by_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "account_logo" CONSTRAINT "account_logo_account_id_fkey"
FOREIGN KEY (account_id) REFERENCES account(id)
TABLE "account_main_admin" CONSTRAINT
"account_main_admin_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "account_organization" CONSTRAINT
"account_organization_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "preferences" CONSTRAINT
"account_preferences_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "account_properties" CONSTRAINT
"account_properties_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "avatars" CONSTRAINT "avatars_account_id_fkey" FOREIGN KEY
(account_id) REFERENCES account(id)
TABLE "billing_address" CONSTRAINT
"billing_address_account_id_fkey" FOREIGN KEY (account_id) REFERENCES
account(id)
TABLE "billing_transaction" CONSTRAINT
"billing_transaction_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "billing_transaction_item" CONSTRAINT
"billing_transaction_item_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "blobs" CONSTRAINT "blobs_account_id_fkey" FOREIGN KEY
(account_id) REFERENCES account(id)
TABLE "bnymellon1_values" CONSTRAINT
"bnymellon1_values_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "capgemini8_values" CONSTRAINT
"capgemini8_values_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "cityofcalgary_values" CONSTRAINT
"cityofcalgary_values_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "comments" CONSTRAINT "comments_account_id_fkey" FOREIGN
KEY (account_id) REFERENCES account(id)
TABLE "comments_history" CONSTRAINT
"comments_history_account_id_fkey" FOREIGN KEY (account_id) REFERENCES
account(id)
TABLE "continued_business_need" CONSTRAINT
"continued_business_need_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "css_fro_values" CONSTRAINT
"css_fro_values_account_id_fkey" FOREIGN KEY (account_id) REFERENCES
account(id)
TABLE "cvscaremarkadp_values" CONSTRAINT
"cvscaremarkadp_values_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "epayment_capture_response" CONSTRAINT
"epayment_capture_response_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "ericsson2_values" CONSTRAINT
"ericsson2_values_account_id_fkey" FOREIGN KEY (account_id) REFERENCES
account(id)
TABLE "file_attachment" CONSTRAINT
"file_attachment_info_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "frozen_values" CONSTRAINT "frozen_values_account_id_fkey"
FOREIGN KEY (account_id) REFERENCES account(id)
TABLE "future_transaction" CONSTRAINT
"future_transaction_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "ibm_values" CONSTRAINT "ibm_values_account_id_fkey"
FOREIGN KEY (account_id) REFERENCES account(id)
TABLE "ibmbpmandrules_values" CONSTRAINT
"ibmbpmandrules_values_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "ibmbwlteam_values" CONSTRAINT
"ibmbwlteam_values_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "ibmgbs_values" CONSTRAINT "ibmgbs_values_account_id_fkey"
FOREIGN KEY (account_id) REFERENCES account(id)
TABLE "ibmtechsales_values" CONSTRAINT
"ibmtechsales_values_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "instance" CONSTRAINT "instance_account_id_fkey" FOREIGN
KEY (account_id) REFERENCES account(id)
TABLE "instance_values" CONSTRAINT
"instance_values_account_id_fkey" FOREIGN KEY (account_id) REFERENCES
account(id)
TABLE "jmffamilyent_values" CONSTRAINT
"jmffamilyent_values_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "johnsoncontrols5_values" CONSTRAINT
"johnsoncontrols5_values_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "keybank3_values" CONSTRAINT
"keybank3_values_account_id_fkey" FOREIGN KEY (account_id) REFERENCES
account(id)
TABLE "mondialassistancegroup_values" CONSTRAINT
"mondialassistancegroup_values_account_id_fkey" FOREIGN KEY
(account_id) REFERENCES account(id)
TABLE "names" CONSTRAINT "names_account_id_fkey" FOREIGN KEY
(account_id) REFERENCES account(id)
TABLE "permitted_ips" CONSTRAINT "permitted_ips_account_id_fkey"
FOREIGN KEY (account_id) REFERENCES account(id)
TABLE "presby_health_serv_values" CONSTRAINT
"presby_health_serv_values_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "principal_fin_grp4_values" CONSTRAINT
"principal_fin_grp4_values_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "item_publications" CONSTRAINT
"process_publications_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "processdoc_tc_nz_values" CONSTRAINT
"processdoc_tc_nz_values_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "property_descriptions" CONSTRAINT
"property_descriptions_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "saml2_idp_account_junction" CONSTRAINT
"saml2_idp_account_junction_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "task" CONSTRAINT "task_account_id_fkey" FOREIGN KEY
(account_id) REFERENCES account(id)
TABLE "template_category" CONSTRAINT
"template_category_template_account_id_fkey" FOREIGN KEY
(template_account_id) REFERENCES account(id)
TABLE "template" CONSTRAINT "template_template_account_id_fkey"
FOREIGN KEY (template_account_id) REFERENCES account(id)
TABLE "text_search_data" CONSTRAINT
"text_search_data_account_id_fkey" FOREIGN KEY (account_id) REFERENCES
account(id)
TABLE "troweprice2_values" CONSTRAINT
"troweprice2_values_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "usage" CONSTRAINT "usage_account_id_fkey" FOREIGN KEY
(account_id) REFERENCES account(id)
TABLE "user_expanded_subs" CONSTRAINT
"user_expanded_subs_account_id_fkey" FOREIGN KEY (account_id)
REFERENCES account(id)
TABLE "user_favorites" CONSTRAINT
"user_favorites_account_id_fkey" FOREIGN KEY (account_id) REFERENCES
account(id)
TABLE "user_followed" CONSTRAINT "user_favorites_account_id_fkey"
FOREIGN KEY (account_id) REFERENCES account(id)
TABLE "user_groups" CONSTRAINT "user_groups_account_id_fkey"
FOREIGN KEY (account_id) REFERENCES account(id)
TABLE "user_permissions" CONSTRAINT
"user_permissions_account_id_fkey" FOREIGN KEY (account_id) REFERENCES
account(id)
TABLE "user_prefs" CONSTRAINT "user_prefs_account_id_fkey"
FOREIGN KEY (account_id) REFERENCES account(id)
TABLE "user_viewed" CONSTRAINT "user_viewed_account_id_fkey"
FOREIGN KEY (account_id) REFERENCES account(id)
TABLE "userid" CONSTRAINT "userid_account_id_fkey" FOREIGN KEY
(account_id) REFERENCES account(id)
TABLE ""values"" CONSTRAINT "values_account_id_fkey" FOREIGN KEY
(account_id) REFERENCES account(id)
druckerdb=>
