Re: speeding up a join query that utilizes a view - Mailing list pgsql-general
| From | Igor Neyman |
|---|---|
| Subject | Re: speeding up a join query that utilizes a view |
| Date | |
| Msg-id | A76B25F2823E954C9E45E32FA49D70EC08F729E7@mail.corp.perceptron.com Whole thread Raw |
| In response to | Re: speeding up a join query that utilizes a view (Kirk Wythers <kwythers@umn.edu>) |
| Responses |
Re: speeding up a join query that utilizes a view
(Kirk Wythers <kwythers@umn.edu>)
|
| List | pgsql-general |
What about index definition, Postgres version, config parameters? Hardware configuration would be helpful too. > -----Original Message----- > From: Kirk Wythers [mailto:kwythers@umn.edu] > Sent: Thursday, January 17, 2013 3:59 PM > To: Igor Neyman > Cc: Kirk Wythers; pgsql-general@postgresql.org > Subject: Re: [GENERAL] speeding up a join query that utilizes a view > > > > > Not enough information: > > > > Postgres version? > > OS? > > Some Postgres configuration parameters, specifically related to > "RESOURCE USAGE" and " QUERY TUNING"? > > Table structures (including indexes) for: > fifteen_min_stacked_propper, fifteen_min, and data_key? > > View definition for fifteen_min_stacked_view? > > > > > Here is some additional information: > > b4warmed3=# \d data_key > Table "public.data_key" > Column | Type | > Modifiers > ----------------------+-----------------------+------------------------ > - > ----------------------+-----------------------+----------------- > site | character varying(6) | > canopy | character varying(24) | > block | character(2) | > plot | character(2) | > measurement_interval | interval | > warming_treatment | character varying(24) | > treatment_code | character varying(24) | > treatment_abbr | character varying(24) | > water_treatment | character varying(24) | > block_name | character varying(24) | > variable_name | character varying(24) | > variable_channel | character varying(24) | > variable_id | character varying(24) | not null default > NULL::character varying > Indexes: > "data_key_pkey" PRIMARY KEY, btree (variable_id) > "data_key_lower_idx" btree (lower(block_name::text)) > "data_key_lower_idx1" btree (lower(variable_channel::text)) > > b4warmed3=# SELECT COUNT(*) FROM data_key; count > ------- > 4728 > (1 row) > > b4warmed3=# \d fifteen_min > Table "public.fifteen_min" > Column | Type | Modifiers > ---------------------+-----------------------------+----------- > rowid | character varying(48) | not null > time2 | timestamp without time zone | > timestamp | timestamp without time zone | > block_name | character varying(8) | > stat_name | character varying(8) | > table_name | character varying(10) | > program | character varying(48) | > a_dc_avg1 | real | > a_dc_avg2 | real | > a_dc_avg3 | real | > a_dc_avg4 | real | > a_dif_avg1 | real | > a_dif_avg2 | real | > a_dif_avg3 | real | > a_dif_avg4 | real | > a_targettemp_avg1 | real | > a_targettemp_avg2 | real | > a_targettemp_avg3 | real | > a_targettemp_avg4 | real | > a_targettemp_avg5 | real | > a_targettemp_avg6 | real | > a_targettemp_avg7 | real | > a_targettemp_avg8 | real | > a_tc_avg1 | real | > a_tc_avg10 | real | > a_tc_avg11 | real | > a_tc_avg12 | real | > a_tc_avg2 | real | > a_tc_avg3 | real | > a_tc_avg4 | real | > a_tc_avg5 | real | > a_tc_avg6 | real | > a_tc_avg7 | real | > a_tc_avg8 | real | > a_tc_avg9 | real | > a_tc_std1 | real | > a_tc_std10 | real | > a_tc_std11 | real | > a_tc_std12 | real | > a_tc_std2 | real | > a_tc_std3 | real | > a_tc_std4 | real | > a_tc_std5 | real | > a_tc_std6 | real | > a_tc_std7 | real | > a_tc_std8 | real | > a_tc_std9 | real | > airtc_avg | real | > airtemp_avg | real | > airtemp_max | real | > airtemp_min | real | > all_avgt | real | > am25tref1 | real | > amb_a_avg | real | > amb_avg1 | real | > amb_avg2 | real | > amb_closed_avg | real | > b_dc_avg1 | real | > b_dc_avg2 | real | > b_dc_avg3 | real | > b_dc_avg4 | real | > batt_volt | real | > etcref_avg | real | > flag1 | integer | > flag10 | integer | > flag11 | integer | > flag12 | integer | > flag2 | integer | > flag3 | integer | > flag4 | integer | > flag5 | integer | > flag6 | integer | > flag7 | integer | > flag8 | integer | > flag9 | integer | > heat_a_avg1 | real | > heat_a_avg2 | real | > heat_a_avg3 | real | > heat_a_avg4 | real | > pid_lmt_avg1 | real | > pid_lmt_avg2 | real | > pid_lmt_avg3 | real | > pid_lmt_avg4 | real | > pid_out_avg1 | real | > pid_out_avg2 | real | > pid_out_avg3 | real | > pid_out_avg4 | real | > ptemp_avg | real | > rh | real | > runavga1 | real | > runavga2 | real | > runavga21 | real | > runavga22 | real | > runavga23 | real | > runavga24 | real | > runavga25 | real | > runavga26 | real | > runavga27 | real | > runavga28 | real | > runavga3 | real | > runavga4 | real | > runavga5 | real | > runavga6 | real | > runavga7 | real | > runavga8 | real | > runavgs_avg1 | real | > runavgs_avg10 | real | > runavgs_avg11 | real | > runavgs_avg12 | real | > runavgs_avg13 | real | > runavgs_avg14 | real | > runavgs_avg15 | real | > runavgs_avg16 | real | > runavgs_avg2 | real | > runavgs_avg3 | real | > runavgs_avg4 | real | > runavgs_avg5 | real | > runavgs_avg6 | real | > runavgs_avg7 | real | > runavgs_avg8 | real | > runavgs_avg9 | real | > s_all_avgt_avg | real | > s_dif1 | real | > s_dif2 | real | > s_dif3 | real | > s_dif4 | real | > s_pid_lmt_avg1 | real | > s_pid_lmt_avg2 | real | > s_pid_lmt_avg3 | real | > s_pid_lmt_avg4 | real | > s_pid_out_avg1 | real | > s_pid_out_avg2 | real | > s_pid_out_avg3 | real | > s_pid_out_avg4 | real | > s_scldout_avg1 | real | > s_scldout_avg2 | real | > s_scldout_avg3 | real | > s_scldout_avg4 | real | > s_sdm_out_avg1 | real | > s_sdm_out_avg2 | real | > s_sdm_out_avg3 | real | > s_sdm_out_avg4 | real | > s_tc_avg1 | real | > s_tc_avg10 | real | > s_tc_avg11 | real | > s_tc_avg12 | real | > s_tc_avg2 | real | > s_tc_avg3 | real | > s_tc_avg4 | real | > s_tc_avg5 | real | > s_tc_avg6 | real | > s_tc_avg7 | real | > s_tc_avg8 | real | > s_tc_avg9 | real | > s_tc_std1 | real | > s_tc_std10 | real | > s_tc_std11 | real | > s_tc_std12 | real | > s_tc_std2 | real | > s_tc_std3 | real | > s_tc_std4 | real | > s_tc_std5 | real | > s_tc_std6 | real | > s_tc_std7 | real | > s_tc_std8 | real | > s_tc_std9 | real | > sbtemp_avg1 | real | > sbtemp_avg2 | real | > sbtemp_avg3 | real | > sbtemp_avg4 | real | > sbtemp_avg5 | real | > sbtemp_avg6 | real | > sbtemp_avg7 | real | > sbtemp_avg8 | real | > scldout_avg1 | real | > scldout_avg2 | real | > scldout_avg3 | real | > scldout_avg4 | real | > sctemp_avg1 | real | > sctemp_avg10 | real | > sctemp_avg11 | real | > sctemp_avg12 | real | > sctemp_avg13 | real | > sctemp_avg14 | real | > sctemp_avg15 | real | > sctemp_avg16 | real | > sctemp_avg17 | real | > sctemp_avg18 | real | > sctemp_avg19 | real | > sctemp_avg2 | real | > sctemp_avg20 | real | > sctemp_avg21 | real | > sctemp_avg22 | real | > sctemp_avg23 | real | > sctemp_avg24 | real | > sctemp_avg3 | real | > sctemp_avg4 | real | > sctemp_avg5 | real | > sctemp_avg6 | real | > sctemp_avg7 | real | > sctemp_avg8 | real | > sctemp_avg9 | real | > sdm_out_avg1 | real | > sdm_out_avg2 | real | > sdm_out_avg3 | real | > sdm_out_avg4 | real | > stemp_avg1 | real | > stemp_avg10 | real | > stemp_avg11 | real | > stemp_avg12 | real | > stemp_avg13 | real | > stemp_avg14 | real | > stemp_avg15 | real | > stemp_avg16 | real | > stemp_avg2 | real | > stemp_avg3 | real | > stemp_avg4 | real | > stemp_avg5 | real | > stemp_avg6 | real | > stemp_avg7 | real | > stemp_avg8 | real | > stemp_avg9 | real | > tabove_avg1 | real | > tabove_avg2 | real | > tabove_avg3 | real | > tabove_avg4 | real | > tabove_avg5 | real | > tabove_avg6 | real | > tabove_avg7 | real | > tabove_avg8 | real | > targettemp_adj_avg1 | real | > targettemp_adj_avg2 | real | > targettemp_adj_avg3 | real | > targettemp_adj_avg4 | real | > targettemp_avg1 | real | > targettemp_avg2 | real | > targettemp_avg3 | real | > targettemp_avg4 | real | > targettemp_avg5 | real | > targettemp_avg6 | real | > targettemp_avg7 | real | > targettemp_avg8 | real | > tmv_avg1 | real | > tmv_avg2 | real | > tmv_avg3 | real | > tmv_avg4 | real | > tmv_avg5 | real | > tmv_avg6 | real | > tmv_avg7 | real | > tmv_avg8 | real | > tsoil_avg1 | real | > tsoil_avg2 | real | > tsoil_avg3 | real | > tsoil_avg4 | real | > tsoil_avg5 | real | > tsoil_avg6 | real | > tsoil_avg7 | real | > tsoil_avg8 | real | > tsoilr1 | real | > tsoilr2 | real | > tsoilr3 | real | > tsoilr4 | real | > tsoilr5 | real | > tsoilr6 | real | > tsoilr7 | real | > tsoilr8 | real | > vp_avg | real | > winddir_d1_wvt | real | > ws_ms_avg | real | > wtcref_avg | real | > Indexes: > "fifteen_min_pkey" PRIMARY KEY, btree (rowid) > "fifteen_min_lower_idx" btree (lower(block_name::text)) > > b4warmed3=# SELECT COUNT(*) FROM fifteen_min; > count > --------- > 1798711 > (1 row) > > > b4warmed3=# \d fifteen_min_stacked_propper > View "public.fifteen_min_stacked_propper" > Column | Type | Modifiers > ----------------+-----------------------------+----------- > rowid | character varying(48) | > time2 | timestamp without time zone | > block_name | character varying(8) | > table_name | character varying(10) | > batt_volt | real | > flag1 | integer | > flag2 | integer | > flag3 | integer | > airtc_avg | real | > airtemp_avg | real | > airtemp_max | real | > airtemp_min | real | > all_avgt | real | > am25tref1 | real | > ptemp_avg | real | > rh | real | > s_all_avgt_avg | real | > vp_avg | real | > winddir_d1_wvt | real | > ws_ms_avg | real | > variable | text | > value | real | > > b4warmed3=# SELECT COUNT(*) FROM fifteen_min_stacked_propper; > count > ----------- > 428093218 > (1 row)
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