dpe_optimizer.out 113.8 KB
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drop schema if exists dpe_single cascade;
NOTICE:  schema "dpe_single" does not exist, skipping
create schema dpe_single;
set search_path='dpe_single';
set gp_segments_for_planner=2;
set optimizer_segments=2;
drop table if exists pt;
NOTICE:  table "pt" does not exist, skipping
drop table if exists pt1;
NOTICE:  table "pt1" does not exist, skipping
drop table if exists t;
NOTICE:  table "t" does not exist, skipping
drop table if exists t1;
NOTICE:  table "t1" does not exist, skipping
create table pt(dist int, pt1 text, pt2 text, pt3 text, ptid int) 
DISTRIBUTED BY (dist)
PARTITION BY RANGE(ptid) 
          (
          START (0) END (5) EVERY (1),
          DEFAULT PARTITION junk_data
          )
;
NOTICE:  CREATE TABLE will create partition "pt_1_prt_junk_data" for table "pt"
NOTICE:  CREATE TABLE will create partition "pt_1_prt_2" for table "pt"
NOTICE:  CREATE TABLE will create partition "pt_1_prt_3" for table "pt"
NOTICE:  CREATE TABLE will create partition "pt_1_prt_4" for table "pt"
NOTICE:  CREATE TABLE will create partition "pt_1_prt_5" for table "pt"
NOTICE:  CREATE TABLE will create partition "pt_1_prt_6" for table "pt"
create table pt1(dist int, pt1 text, pt2 text, pt3 text, ptid int) 
DISTRIBUTED RANDOMLY
PARTITION BY RANGE(ptid) 
          (
          START (0) END (5) EVERY (1),
          DEFAULT PARTITION junk_data
          )
;
NOTICE:  CREATE TABLE will create partition "pt1_1_prt_junk_data" for table "pt1"
NOTICE:  CREATE TABLE will create partition "pt1_1_prt_2" for table "pt1"
NOTICE:  CREATE TABLE will create partition "pt1_1_prt_3" for table "pt1"
NOTICE:  CREATE TABLE will create partition "pt1_1_prt_4" for table "pt1"
NOTICE:  CREATE TABLE will create partition "pt1_1_prt_5" for table "pt1"
NOTICE:  CREATE TABLE will create partition "pt1_1_prt_6" for table "pt1"
create table t(dist int, tid int, t1 text, t2 text);
NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause -- Using column named 'dist' as the Greenplum Database data distribution key for this table.
HINT:  The 'DISTRIBUTED BY' clause determines the distribution of data. Make sure column(s) chosen are the optimal data distribution key to minimize skew.
create index pt1_idx on pt using btree (pt1);
NOTICE:  building index for child partition "pt_1_prt_junk_data"
NOTICE:  building index for child partition "pt_1_prt_2"
NOTICE:  building index for child partition "pt_1_prt_3"
NOTICE:  building index for child partition "pt_1_prt_4"
NOTICE:  building index for child partition "pt_1_prt_5"
NOTICE:  building index for child partition "pt_1_prt_6"
create index ptid_idx on pt using btree (ptid);
NOTICE:  building index for child partition "pt_1_prt_junk_data"
NOTICE:  building index for child partition "pt_1_prt_2"
NOTICE:  building index for child partition "pt_1_prt_3"
NOTICE:  building index for child partition "pt_1_prt_4"
NOTICE:  building index for child partition "pt_1_prt_5"
NOTICE:  building index for child partition "pt_1_prt_6"
insert into pt select i, 'hello' || i, 'world', 'drop this', i % 6 from generate_series(0,53) i;
insert into t select i, i % 6, 'hello' || i, 'bar' from generate_series(0,1) i;
create table t1 as select * from t;
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NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause. Creating a NULL policy entry.
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insert into pt1 select * from pt;
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insert into pt1 select dist, pt1, pt2, pt3, ptid-100 from pt;
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analyze pt;
analyze pt1;
analyze t;
analyze t1;
--
-- Simple positive cases
--
explain select * from t, pt where tid = ptid;
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                                               QUERY PLAN                                               
--------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..485.01 rows=18 width=50)
   ->  Nested Loop  (cost=0.00..485.01 rows=6 width=50)
         Join Filter: true
         ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
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               ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19)
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         ->  Sequence  (cost=0.00..54.00 rows=3 width=31)
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               ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
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                     Partitions selected: 6 (out of 6)
               ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..54.00 rows=3 width=31)
                     Index Cond: ptid = $0
 Optimizer: PQO version 2.64.0
(11 rows)
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select * from t, pt where tid = ptid;
 dist | tid |   t1   | t2  | dist |   pt1   |  pt2  |    pt3    | ptid 
------+-----+--------+-----+------+---------+-------+-----------+------
    1 |   1 | hello1 | bar |    1 | hello1  | world | drop this |    1
    1 |   1 | hello1 | bar |    7 | hello7  | world | drop this |    1
    1 |   1 | hello1 | bar |   13 | hello13 | world | drop this |    1
    1 |   1 | hello1 | bar |   19 | hello19 | world | drop this |    1
    1 |   1 | hello1 | bar |   25 | hello25 | world | drop this |    1
    1 |   1 | hello1 | bar |   31 | hello31 | world | drop this |    1
    1 |   1 | hello1 | bar |   37 | hello37 | world | drop this |    1
    1 |   1 | hello1 | bar |   43 | hello43 | world | drop this |    1
    1 |   1 | hello1 | bar |   49 | hello49 | world | drop this |    1
    0 |   0 | hello0 | bar |    0 | hello0  | world | drop this |    0
    0 |   0 | hello0 | bar |    6 | hello6  | world | drop this |    0
    0 |   0 | hello0 | bar |   12 | hello12 | world | drop this |    0
    0 |   0 | hello0 | bar |   18 | hello18 | world | drop this |    0
    0 |   0 | hello0 | bar |   24 | hello24 | world | drop this |    0
    0 |   0 | hello0 | bar |   30 | hello30 | world | drop this |    0
    0 |   0 | hello0 | bar |   36 | hello36 | world | drop this |    0
    0 |   0 | hello0 | bar |   42 | hello42 | world | drop this |    0
    0 |   0 | hello0 | bar |   48 | hello48 | world | drop this |    0
(18 rows)

explain select * from t, pt where tid + 1 = ptid;
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                                               QUERY PLAN                                               
--------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..485.01 rows=18 width=50)
   ->  Nested Loop  (cost=0.00..485.01 rows=6 width=50)
         Join Filter: true
         ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
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               ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19)
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         ->  Sequence  (cost=0.00..54.00 rows=3 width=31)
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               ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
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                     Partitions selected: 6 (out of 6)
               ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..54.00 rows=3 width=31)
                     Index Cond: ptid = ($0 + 1)
 Optimizer: PQO version 2.64.0
(11 rows)
127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151

select * from t, pt where tid + 1 = ptid;
 dist | tid |   t1   | t2  | dist |   pt1   |  pt2  |    pt3    | ptid 
------+-----+--------+-----+------+---------+-------+-----------+------
    0 |   0 | hello0 | bar |    1 | hello1  | world | drop this |    1
    0 |   0 | hello0 | bar |    7 | hello7  | world | drop this |    1
    0 |   0 | hello0 | bar |   13 | hello13 | world | drop this |    1
    0 |   0 | hello0 | bar |   19 | hello19 | world | drop this |    1
    0 |   0 | hello0 | bar |   25 | hello25 | world | drop this |    1
    0 |   0 | hello0 | bar |   31 | hello31 | world | drop this |    1
    0 |   0 | hello0 | bar |   37 | hello37 | world | drop this |    1
    0 |   0 | hello0 | bar |   43 | hello43 | world | drop this |    1
    0 |   0 | hello0 | bar |   49 | hello49 | world | drop this |    1
    1 |   1 | hello1 | bar |    2 | hello2  | world | drop this |    2
    1 |   1 | hello1 | bar |    8 | hello8  | world | drop this |    2
    1 |   1 | hello1 | bar |   14 | hello14 | world | drop this |    2
    1 |   1 | hello1 | bar |   20 | hello20 | world | drop this |    2
    1 |   1 | hello1 | bar |   26 | hello26 | world | drop this |    2
    1 |   1 | hello1 | bar |   32 | hello32 | world | drop this |    2
    1 |   1 | hello1 | bar |   38 | hello38 | world | drop this |    2
    1 |   1 | hello1 | bar |   44 | hello44 | world | drop this |    2
    1 |   1 | hello1 | bar |   50 | hello50 | world | drop this |    2
(18 rows)

explain select * from t, pt where tid = ptid and t1 = 'hello' || tid;
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                                               QUERY PLAN                                               
--------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..458.01 rows=9 width=50)
   ->  Nested Loop  (cost=0.00..458.00 rows=3 width=50)
         Join Filter: true
         ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=19)
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               ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19)
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                     Filter: t1 = ('hello'::text || tid::text)
         ->  Sequence  (cost=0.00..27.00 rows=3 width=31)
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               ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
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                     Partitions selected: 6 (out of 6)
               ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..27.00 rows=3 width=31)
                     Index Cond: ptid = $0
 Optimizer: PQO version 2.64.0
(12 rows)
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select * from t, pt where tid = ptid and t1 = 'hello' || tid;
 dist | tid |   t1   | t2  | dist |   pt1   |  pt2  |    pt3    | ptid 
------+-----+--------+-----+------+---------+-------+-----------+------
    1 |   1 | hello1 | bar |    1 | hello1  | world | drop this |    1
    1 |   1 | hello1 | bar |    7 | hello7  | world | drop this |    1
    1 |   1 | hello1 | bar |   13 | hello13 | world | drop this |    1
    1 |   1 | hello1 | bar |   19 | hello19 | world | drop this |    1
    1 |   1 | hello1 | bar |   25 | hello25 | world | drop this |    1
    1 |   1 | hello1 | bar |   31 | hello31 | world | drop this |    1
    1 |   1 | hello1 | bar |   37 | hello37 | world | drop this |    1
    1 |   1 | hello1 | bar |   43 | hello43 | world | drop this |    1
    1 |   1 | hello1 | bar |   49 | hello49 | world | drop this |    1
    0 |   0 | hello0 | bar |    0 | hello0  | world | drop this |    0
    0 |   0 | hello0 | bar |    6 | hello6  | world | drop this |    0
    0 |   0 | hello0 | bar |   12 | hello12 | world | drop this |    0
    0 |   0 | hello0 | bar |   18 | hello18 | world | drop this |    0
    0 |   0 | hello0 | bar |   24 | hello24 | world | drop this |    0
    0 |   0 | hello0 | bar |   30 | hello30 | world | drop this |    0
    0 |   0 | hello0 | bar |   36 | hello36 | world | drop this |    0
    0 |   0 | hello0 | bar |   42 | hello42 | world | drop this |    0
    0 |   0 | hello0 | bar |   48 | hello48 | world | drop this |    0
(18 rows)

explain select * from t, pt where t1 = pt1 and ptid = tid;
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                                               QUERY PLAN                                               
--------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..437.00 rows=2 width=50)
   ->  Nested Loop  (cost=0.00..437.00 rows=1 width=50)
         Join Filter: true
         ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
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               ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19)
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         ->  Sequence  (cost=0.00..6.00 rows=1 width=31)
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               ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
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                     Partitions selected: 6 (out of 6)
               ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..6.00 rows=1 width=31)
                     Index Cond: pt1 = $1
                     Filter: ptid = $0
 Optimizer: PQO version 2.64.0
(12 rows)
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select * from t, pt where t1 = pt1 and ptid = tid;
 dist | tid |   t1   | t2  | dist |  pt1   |  pt2  |    pt3    | ptid 
------+-----+--------+-----+------+--------+-------+-----------+------
    0 |   0 | hello0 | bar |    0 | hello0 | world | drop this |    0
    1 |   1 | hello1 | bar |    1 | hello1 | world | drop this |    1
(2 rows)

--
-- in and exists clauses
--
explain select * from pt where ptid in (select tid from t where t1 = 'hello' || tid);
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                                               QUERY PLAN                                                
---------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..862.01 rows=9 width=31)
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   ->  Hash Semi Join  (cost=0.00..862.01 rows=3 width=31)
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         Hash Cond: pt.ptid = t.tid
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         ->  Dynamic Seq Scan on pt (dynamic scan id: 1)  (cost=0.00..431.00 rows=18 width=31)
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         ->  Hash  (cost=100.00..100.00 rows=34 width=4)
               ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                     Filter: pt.ptid = t.tid
                     ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=4)
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                           ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=4)
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                                 Filter: t1 = ('hello'::text || tid::text)
 Settings:  gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.5.0
(12 rows)
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select * from pt where ptid in (select tid from t where t1 = 'hello' || tid);
 dist |   pt1   |  pt2  |    pt3    | ptid 
------+---------+-------+-----------+------
    1 | hello1  | world | drop this |    1
    7 | hello7  | world | drop this |    1
   13 | hello13 | world | drop this |    1
   19 | hello19 | world | drop this |    1
   25 | hello25 | world | drop this |    1
   31 | hello31 | world | drop this |    1
   37 | hello37 | world | drop this |    1
   43 | hello43 | world | drop this |    1
   49 | hello49 | world | drop this |    1
    0 | hello0  | world | drop this |    0
    6 | hello6  | world | drop this |    0
   12 | hello12 | world | drop this |    0
   18 | hello18 | world | drop this |    0
   24 | hello24 | world | drop this |    0
   30 | hello30 | world | drop this |    0
   36 | hello36 | world | drop this |    0
   42 | hello42 | world | drop this |    0
   48 | hello48 | world | drop this |    0
(18 rows)

explain select * from pt where exists (select 1 from t where tid = ptid and t1 = 'hello' || tid);
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                                               QUERY PLAN                                                
---------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..862.01 rows=9 width=31)
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   ->  Hash Semi Join  (cost=0.00..862.01 rows=3 width=31)
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         Hash Cond: pt.ptid = t.tid
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         ->  Dynamic Seq Scan on pt (dynamic scan id: 1)  (cost=0.00..431.00 rows=18 width=31)
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         ->  Hash  (cost=100.00..100.00 rows=34 width=4)
               ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                     Filter: pt.ptid = t.tid
                     ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=4)
                           ->  Result  (cost=0.00..431.00 rows=1 width=4)
                                 ->  Result  (cost=0.00..431.00 rows=1 width=4)
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                                       ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=4)
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                                             Filter: t1 = ('hello'::text || tid::text)
 Settings:  gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.5.0
(14 rows)
276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303

select * from pt where exists (select 1 from t where tid = ptid and t1 = 'hello' || tid);
 dist |   pt1   |  pt2  |    pt3    | ptid 
------+---------+-------+-----------+------
   49 | hello49 | world | drop this |    1
   43 | hello43 | world | drop this |    1
   37 | hello37 | world | drop this |    1
   31 | hello31 | world | drop this |    1
   25 | hello25 | world | drop this |    1
   19 | hello19 | world | drop this |    1
   13 | hello13 | world | drop this |    1
    7 | hello7  | world | drop this |    1
    1 | hello1  | world | drop this |    1
   48 | hello48 | world | drop this |    0
   42 | hello42 | world | drop this |    0
   36 | hello36 | world | drop this |    0
   30 | hello30 | world | drop this |    0
   24 | hello24 | world | drop this |    0
   18 | hello18 | world | drop this |    0
   12 | hello12 | world | drop this |    0
    6 | hello6  | world | drop this |    0
    0 | hello0  | world | drop this |    0
(18 rows)

--
-- group-by on top
--
explain select count(*) from t, pt where tid = ptid;
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                                                     QUERY PLAN                                                     
--------------------------------------------------------------------------------------------------------------------
 Aggregate  (cost=0.00..485.00 rows=1 width=8)
   ->  Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..485.00 rows=1 width=8)
         ->  Aggregate  (cost=0.00..485.00 rows=1 width=8)
               ->  Nested Loop  (cost=0.00..485.00 rows=6 width=1)
                     Join Filter: true
                     ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=4)
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                           ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=4)
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                     ->  Sequence  (cost=0.00..54.00 rows=3 width=1)
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                           ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
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                                 Partitions selected: 6 (out of 6)
                           ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..54.00 rows=3 width=1)
                                 Index Cond: ptid = $0
 Optimizer: PQO version 2.64.0
(13 rows)
320 321 322 323 324 325 326 327 328 329 330

select count(*) from t, pt where tid = ptid;
 count 
-------
    18
(1 row)

--
-- window function on top
--
explain select *, rank() over (order by ptid,pt1) from t, pt where tid = ptid;
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                                                     QUERY PLAN                                                     
--------------------------------------------------------------------------------------------------------------------
 WindowAgg  (cost=0.00..485.02 rows=6 width=64)
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   Order By: pt.ptid, pt.pt1
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   ->  Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..485.02 rows=18 width=50)
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         Merge Key: pt.ptid, pt.pt1
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         ->  Sort  (cost=0.00..485.02 rows=6 width=50)
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               Sort Key: pt.ptid, pt.pt1
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               ->  Nested Loop  (cost=0.00..485.01 rows=6 width=50)
                     Join Filter: true
                     ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
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                           ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19)
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                     ->  Sequence  (cost=0.00..54.00 rows=3 width=31)
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                           ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
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                                 Partitions selected: 6 (out of 6)
                           ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..54.00 rows=3 width=31)
                                 Index Cond: ptid = $0
 Optimizer: PQO version 2.64.0
(16 rows)
350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379

select *, rank() over (order by ptid,pt1) from t, pt where tid = ptid;
 dist | tid |   t1   | t2  | dist |   pt1   |  pt2  |    pt3    | ptid | rank 
------+-----+--------+-----+------+---------+-------+-----------+------+------
    0 |   0 | hello0 | bar |    0 | hello0  | world | drop this |    0 |    1
    0 |   0 | hello0 | bar |   12 | hello12 | world | drop this |    0 |    2
    0 |   0 | hello0 | bar |   18 | hello18 | world | drop this |    0 |    3
    0 |   0 | hello0 | bar |   24 | hello24 | world | drop this |    0 |    4
    0 |   0 | hello0 | bar |   30 | hello30 | world | drop this |    0 |    5
    0 |   0 | hello0 | bar |   36 | hello36 | world | drop this |    0 |    6
    0 |   0 | hello0 | bar |   42 | hello42 | world | drop this |    0 |    7
    0 |   0 | hello0 | bar |   48 | hello48 | world | drop this |    0 |    8
    0 |   0 | hello0 | bar |    6 | hello6  | world | drop this |    0 |    9
    1 |   1 | hello1 | bar |    1 | hello1  | world | drop this |    1 |   10
    1 |   1 | hello1 | bar |   13 | hello13 | world | drop this |    1 |   11
    1 |   1 | hello1 | bar |   19 | hello19 | world | drop this |    1 |   12
    1 |   1 | hello1 | bar |   25 | hello25 | world | drop this |    1 |   13
    1 |   1 | hello1 | bar |   31 | hello31 | world | drop this |    1 |   14
    1 |   1 | hello1 | bar |   37 | hello37 | world | drop this |    1 |   15
    1 |   1 | hello1 | bar |   43 | hello43 | world | drop this |    1 |   16
    1 |   1 | hello1 | bar |   49 | hello49 | world | drop this |    1 |   17
    1 |   1 | hello1 | bar |    7 | hello7  | world | drop this |    1 |   18
(18 rows)

--
-- set ops
--
explain select * from t, pt where tid = ptid
	  union all
	  select * from t, pt where tid + 2 = ptid;
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                                                   QUERY PLAN                                                   
----------------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice3; segments: 3)  (cost=0.00..886.02 rows=36 width=50)
   ->  Append  (cost=0.00..886.01 rows=12 width=50)
         ->  Nested Loop  (cost=0.00..443.01 rows=6 width=50)
385 386
               Join Filter: true
               ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
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                     ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19)
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               ->  Sequence  (cost=0.00..12.00 rows=3 width=31)
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Haisheng Yuan 已提交
389
                     ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
390
                           Partitions selected: 6 (out of 6)
391
                     ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..12.00 rows=3 width=31)
392
                           Index Cond: ptid = $0
393
         ->  Nested Loop  (cost=0.00..443.01 rows=6 width=50)
394 395
               Join Filter: true
               ->  Broadcast Motion 3:3  (slice2; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
396
                     ->  Seq Scan on t t_1  (cost=0.00..431.00 rows=1 width=19)
397
               ->  Sequence  (cost=0.00..12.00 rows=3 width=31)
H
Haisheng Yuan 已提交
398
                     ->  Partition Selector for pt (dynamic scan id: 2)  (cost=10.00..100.00 rows=34 width=4)
399
                           Partitions selected: 6 (out of 6)
400
                     ->  Dynamic Index Scan on pt pt_1 (dynamic scan id: 2)  (cost=0.00..12.00 rows=3 width=31)
401
                           Index Cond: ptid = ($1 + 2)
402
 Optimizer: PQO version 2.74.0
403
(21 rows)
404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455

select * from t, pt where tid = ptid
	  union all
	  select * from t, pt where tid + 2 = ptid;
 dist | tid |   t1   | t2  | dist |   pt1   |  pt2  |    pt3    | ptid 
------+-----+--------+-----+------+---------+-------+-----------+------
    1 |   1 | hello1 | bar |    1 | hello1  | world | drop this |    1
    1 |   1 | hello1 | bar |    7 | hello7  | world | drop this |    1
    1 |   1 | hello1 | bar |   13 | hello13 | world | drop this |    1
    1 |   1 | hello1 | bar |   19 | hello19 | world | drop this |    1
    1 |   1 | hello1 | bar |   25 | hello25 | world | drop this |    1
    1 |   1 | hello1 | bar |   31 | hello31 | world | drop this |    1
    1 |   1 | hello1 | bar |   37 | hello37 | world | drop this |    1
    1 |   1 | hello1 | bar |   43 | hello43 | world | drop this |    1
    1 |   1 | hello1 | bar |   49 | hello49 | world | drop this |    1
    1 |   1 | hello1 | bar |    3 | hello3  | world | drop this |    3
    1 |   1 | hello1 | bar |    9 | hello9  | world | drop this |    3
    1 |   1 | hello1 | bar |   15 | hello15 | world | drop this |    3
    1 |   1 | hello1 | bar |   21 | hello21 | world | drop this |    3
    1 |   1 | hello1 | bar |   27 | hello27 | world | drop this |    3
    1 |   1 | hello1 | bar |   33 | hello33 | world | drop this |    3
    1 |   1 | hello1 | bar |   39 | hello39 | world | drop this |    3
    1 |   1 | hello1 | bar |   45 | hello45 | world | drop this |    3
    1 |   1 | hello1 | bar |   51 | hello51 | world | drop this |    3
    0 |   0 | hello0 | bar |    0 | hello0  | world | drop this |    0
    0 |   0 | hello0 | bar |    6 | hello6  | world | drop this |    0
    0 |   0 | hello0 | bar |   12 | hello12 | world | drop this |    0
    0 |   0 | hello0 | bar |   18 | hello18 | world | drop this |    0
    0 |   0 | hello0 | bar |   24 | hello24 | world | drop this |    0
    0 |   0 | hello0 | bar |   30 | hello30 | world | drop this |    0
    0 |   0 | hello0 | bar |   36 | hello36 | world | drop this |    0
    0 |   0 | hello0 | bar |   42 | hello42 | world | drop this |    0
    0 |   0 | hello0 | bar |   48 | hello48 | world | drop this |    0
    0 |   0 | hello0 | bar |    2 | hello2  | world | drop this |    2
    0 |   0 | hello0 | bar |    8 | hello8  | world | drop this |    2
    0 |   0 | hello0 | bar |   14 | hello14 | world | drop this |    2
    0 |   0 | hello0 | bar |   20 | hello20 | world | drop this |    2
    0 |   0 | hello0 | bar |   26 | hello26 | world | drop this |    2
    0 |   0 | hello0 | bar |   32 | hello32 | world | drop this |    2
    0 |   0 | hello0 | bar |   38 | hello38 | world | drop this |    2
    0 |   0 | hello0 | bar |   44 | hello44 | world | drop this |    2
    0 |   0 | hello0 | bar |   50 | hello50 | world | drop this |    2
(36 rows)

--
-- set-ops
--
explain select count(*) from
	( select * from t, pt where tid = ptid
	  union all
	  select * from t, pt where tid + 2 = ptid
	  ) foo;
456 457 458 459 460 461 462
                                                         QUERY PLAN                                                         
----------------------------------------------------------------------------------------------------------------------------
 Aggregate  (cost=0.00..886.01 rows=1 width=8)
   ->  Gather Motion 3:1  (slice3; segments: 3)  (cost=0.00..886.01 rows=1 width=8)
         ->  Aggregate  (cost=0.00..886.01 rows=1 width=8)
               ->  Append  (cost=0.00..886.01 rows=12 width=1)
                     ->  Nested Loop  (cost=0.00..443.01 rows=6 width=50)
463 464
                           Join Filter: true
                           ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
465
                                 ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19)
466
                           ->  Sequence  (cost=0.00..12.00 rows=3 width=31)
H
Haisheng Yuan 已提交
467
                                 ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
468
                                       Partitions selected: 6 (out of 6)
469
                                 ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..12.00 rows=3 width=31)
470
                                       Index Cond: ptid = $0
471
                     ->  Nested Loop  (cost=0.00..443.01 rows=6 width=50)
472 473
                           Join Filter: true
                           ->  Broadcast Motion 3:3  (slice2; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
474
                                 ->  Seq Scan on t t_1  (cost=0.00..431.00 rows=1 width=19)
475
                           ->  Sequence  (cost=0.00..12.00 rows=3 width=31)
H
Haisheng Yuan 已提交
476
                                 ->  Partition Selector for pt (dynamic scan id: 2)  (cost=10.00..100.00 rows=34 width=4)
477
                                       Partitions selected: 6 (out of 6)
478
                                 ->  Dynamic Index Scan on pt pt_1 (dynamic scan id: 2)  (cost=0.00..12.00 rows=3 width=31)
479
                                       Index Cond: ptid = ($1 + 2)
480
 Optimizer: PQO version 2.74.0
481
(23 rows)
482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499

select count(*) from
	( select * from t, pt where tid = ptid
	  union all
	  select * from t, pt where tid + 2 = ptid
	  ) foo;
 count 
-------
    36
(1 row)

--
-- other join types (NL)
--
set enable_hashjoin=off;
set enable_nestloop=on;
set enable_mergejoin=off;
explain select * from t, pt where tid = ptid;
500 501 502 503 504 505
                                               QUERY PLAN                                               
--------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..485.01 rows=18 width=50)
   ->  Nested Loop  (cost=0.00..485.01 rows=6 width=50)
         Join Filter: true
         ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
506
               ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19)
507
         ->  Sequence  (cost=0.00..54.00 rows=3 width=31)
H
Haisheng Yuan 已提交
508
               ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
509 510 511 512 513
                     Partitions selected: 6 (out of 6)
               ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..54.00 rows=3 width=31)
                     Index Cond: ptid = $0
 Optimizer: PQO version 2.64.0
(11 rows)
514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540

select * from t, pt where tid = ptid;
 dist | tid |   t1   | t2  | dist |   pt1   |  pt2  |    pt3    | ptid 
------+-----+--------+-----+------+---------+-------+-----------+------
    1 |   1 | hello1 | bar |    1 | hello1  | world | drop this |    1
    1 |   1 | hello1 | bar |    7 | hello7  | world | drop this |    1
    1 |   1 | hello1 | bar |   13 | hello13 | world | drop this |    1
    1 |   1 | hello1 | bar |   19 | hello19 | world | drop this |    1
    1 |   1 | hello1 | bar |   25 | hello25 | world | drop this |    1
    1 |   1 | hello1 | bar |   31 | hello31 | world | drop this |    1
    1 |   1 | hello1 | bar |   37 | hello37 | world | drop this |    1
    1 |   1 | hello1 | bar |   43 | hello43 | world | drop this |    1
    1 |   1 | hello1 | bar |   49 | hello49 | world | drop this |    1
    0 |   0 | hello0 | bar |    0 | hello0  | world | drop this |    0
    0 |   0 | hello0 | bar |    6 | hello6  | world | drop this |    0
    0 |   0 | hello0 | bar |   12 | hello12 | world | drop this |    0
    0 |   0 | hello0 | bar |   18 | hello18 | world | drop this |    0
    0 |   0 | hello0 | bar |   24 | hello24 | world | drop this |    0
    0 |   0 | hello0 | bar |   30 | hello30 | world | drop this |    0
    0 |   0 | hello0 | bar |   36 | hello36 | world | drop this |    0
    0 |   0 | hello0 | bar |   42 | hello42 | world | drop this |    0
    0 |   0 | hello0 | bar |   48 | hello48 | world | drop this |    0
(18 rows)

--
-- index scan
--
541
set enable_nestloop=on;
542 543 544 545 546
set enable_seqscan=off;
set enable_indexscan=on;
set enable_bitmapscan=off;
set enable_hashjoin=off;
explain select * from t, pt where tid = ptid and pt1 = 'hello0';
547 548 549 550 551 552 553
                                                     QUERY PLAN                                                     
--------------------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice3; segments: 3)  (cost=0.00..437.00 rows=1 width=50)
   ->  Hash Join  (cost=0.00..437.00 rows=1 width=50)
         Hash Cond: t.tid = pt.ptid
         ->  Redistribute Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=19)
               Hash Key: t.tid
554
               ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19)
555 556 557 558 559 560 561 562 563 564
         ->  Hash  (cost=6.00..6.00 rows=1 width=31)
               ->  Redistribute Motion 3:3  (slice2; segments: 3)  (cost=0.00..6.00 rows=1 width=31)
                     Hash Key: pt.ptid
                     ->  Sequence  (cost=0.00..6.00 rows=1 width=31)
                           ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                                 Partitions selected: 6 (out of 6)
                           ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..6.00 rows=1 width=31)
                                 Index Cond: pt1 = 'hello0'::text
 Optimizer: PQO version 2.73.0
(15 rows)
565 566 567 568 569 570 571 572 573 574 575 576 577 578 579

select * from t, pt where tid = ptid and pt1 = 'hello0';
 dist | tid |   t1   | t2  | dist |  pt1   |  pt2  |    pt3    | ptid 
------+-----+--------+-----+------+--------+-------+-----------+------
    0 |   0 | hello0 | bar |    0 | hello0 | world | drop this |    0
(1 row)

--
-- NL Index Scan
--
set enable_nestloop=on;
set enable_indexscan=on;
set enable_seqscan=off;
set enable_hashjoin=off;
explain select * from t, pt where tid = ptid;
580 581 582 583 584 585
                                               QUERY PLAN                                               
--------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..485.01 rows=18 width=50)
   ->  Nested Loop  (cost=0.00..485.01 rows=6 width=50)
         Join Filter: true
         ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
586
               ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19)
587
         ->  Sequence  (cost=0.00..54.00 rows=3 width=31)
H
Haisheng Yuan 已提交
588
               ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
589 590 591 592 593
                     Partitions selected: 6 (out of 6)
               ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..54.00 rows=3 width=31)
                     Index Cond: ptid = $0
 Optimizer: PQO version 2.64.0
(11 rows)
594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625

select * from t, pt where tid = ptid;
 dist | tid |   t1   | t2  | dist |   pt1   |  pt2  |    pt3    | ptid 
------+-----+--------+-----+------+---------+-------+-----------+------
    1 |   1 | hello1 | bar |    1 | hello1  | world | drop this |    1
    1 |   1 | hello1 | bar |    7 | hello7  | world | drop this |    1
    1 |   1 | hello1 | bar |   13 | hello13 | world | drop this |    1
    1 |   1 | hello1 | bar |   19 | hello19 | world | drop this |    1
    1 |   1 | hello1 | bar |   25 | hello25 | world | drop this |    1
    1 |   1 | hello1 | bar |   31 | hello31 | world | drop this |    1
    1 |   1 | hello1 | bar |   37 | hello37 | world | drop this |    1
    1 |   1 | hello1 | bar |   43 | hello43 | world | drop this |    1
    1 |   1 | hello1 | bar |   49 | hello49 | world | drop this |    1
    0 |   0 | hello0 | bar |    0 | hello0  | world | drop this |    0
    0 |   0 | hello0 | bar |    6 | hello6  | world | drop this |    0
    0 |   0 | hello0 | bar |   12 | hello12 | world | drop this |    0
    0 |   0 | hello0 | bar |   18 | hello18 | world | drop this |    0
    0 |   0 | hello0 | bar |   24 | hello24 | world | drop this |    0
    0 |   0 | hello0 | bar |   30 | hello30 | world | drop this |    0
    0 |   0 | hello0 | bar |   36 | hello36 | world | drop this |    0
    0 |   0 | hello0 | bar |   42 | hello42 | world | drop this |    0
    0 |   0 | hello0 | bar |   48 | hello48 | world | drop this |    0
(18 rows)

--
-- Negative test cases where transform does not apply
--
set enable_indexscan=off;
set enable_seqscan=on;
set enable_hashjoin=on;
set enable_nestloop=off;
explain select * from t, pt where t1 = pt1;
A
Asim R P 已提交
626 627
                                               QUERY PLAN                                               
--------------------------------------------------------------------------------------------------------
628 629 630 631
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..437.00 rows=2 width=50)
   ->  Nested Loop  (cost=0.00..437.00 rows=1 width=50)
         Join Filter: true
         ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
632
               ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19)
633
         ->  Sequence  (cost=0.00..6.00 rows=1 width=31)
H
Haisheng Yuan 已提交
634 635
               ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                     Partitions selected: 6 (out of 6)
636 637 638
               ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..6.00 rows=1 width=31)
                     Index Cond: pt1 = $0
 Optimizer: PQO version 2.64.0
A
Asim R P 已提交
639
(11 rows)
640 641 642 643 644 645 646 647 648

select * from t, pt where t1 = pt1;
 dist | tid |   t1   | t2  | dist |  pt1   |  pt2  |    pt3    | ptid 
------+-----+--------+-----+------+--------+-------+-----------+------
    1 |   1 | hello1 | bar |    1 | hello1 | world | drop this |    1
    0 |   0 | hello0 | bar |    0 | hello0 | world | drop this |    0
(2 rows)

explain select * from t, pt where tid < ptid;
649 650 651 652 653 654
                                               QUERY PLAN                                               
--------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..539.02 rows=36 width=50)
   ->  Nested Loop  (cost=0.00..539.01 rows=12 width=50)
         Join Filter: true
         ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
655
               ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19)
656 657 658 659 660 661 662
         ->  Sequence  (cost=0.00..108.01 rows=6 width=31)
               ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                     Partitions selected: 6 (out of 6)
               ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..108.01 rows=6 width=31)
                     Index Cond: ptid > $0
 Optimizer: PQO version 2.64.0
(11 rows)
663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753

select * from t, pt where tid < ptid;
 dist | tid |   t1   | t2  | dist |   pt1   |  pt2  |    pt3    | ptid 
------+-----+--------+-----+------+---------+-------+-----------+------
    1 |   1 | hello1 | bar |    2 | hello2  | world | drop this |    2
    0 |   0 | hello0 | bar |    2 | hello2  | world | drop this |    2
    1 |   1 | hello1 | bar |    8 | hello8  | world | drop this |    2
    0 |   0 | hello0 | bar |    8 | hello8  | world | drop this |    2
    1 |   1 | hello1 | bar |   14 | hello14 | world | drop this |    2
    0 |   0 | hello0 | bar |   14 | hello14 | world | drop this |    2
    1 |   1 | hello1 | bar |   20 | hello20 | world | drop this |    2
    0 |   0 | hello0 | bar |   20 | hello20 | world | drop this |    2
    1 |   1 | hello1 | bar |   26 | hello26 | world | drop this |    2
    0 |   0 | hello0 | bar |   26 | hello26 | world | drop this |    2
    1 |   1 | hello1 | bar |   32 | hello32 | world | drop this |    2
    0 |   0 | hello0 | bar |   32 | hello32 | world | drop this |    2
    1 |   1 | hello1 | bar |   38 | hello38 | world | drop this |    2
    0 |   0 | hello0 | bar |   38 | hello38 | world | drop this |    2
    1 |   1 | hello1 | bar |   44 | hello44 | world | drop this |    2
    0 |   0 | hello0 | bar |   44 | hello44 | world | drop this |    2
    1 |   1 | hello1 | bar |   50 | hello50 | world | drop this |    2
    0 |   0 | hello0 | bar |   50 | hello50 | world | drop this |    2
    1 |   1 | hello1 | bar |    4 | hello4  | world | drop this |    4
    0 |   0 | hello0 | bar |    4 | hello4  | world | drop this |    4
    1 |   1 | hello1 | bar |   10 | hello10 | world | drop this |    4
    0 |   0 | hello0 | bar |   10 | hello10 | world | drop this |    4
    1 |   1 | hello1 | bar |   16 | hello16 | world | drop this |    4
    0 |   0 | hello0 | bar |   16 | hello16 | world | drop this |    4
    1 |   1 | hello1 | bar |   22 | hello22 | world | drop this |    4
    0 |   0 | hello0 | bar |   22 | hello22 | world | drop this |    4
    1 |   1 | hello1 | bar |   28 | hello28 | world | drop this |    4
    0 |   0 | hello0 | bar |   28 | hello28 | world | drop this |    4
    1 |   1 | hello1 | bar |   34 | hello34 | world | drop this |    4
    0 |   0 | hello0 | bar |   34 | hello34 | world | drop this |    4
    1 |   1 | hello1 | bar |   40 | hello40 | world | drop this |    4
    0 |   0 | hello0 | bar |   40 | hello40 | world | drop this |    4
    1 |   1 | hello1 | bar |   46 | hello46 | world | drop this |    4
    0 |   0 | hello0 | bar |   46 | hello46 | world | drop this |    4
    1 |   1 | hello1 | bar |   52 | hello52 | world | drop this |    4
    0 |   0 | hello0 | bar |   52 | hello52 | world | drop this |    4
    1 |   1 | hello1 | bar |    5 | hello5  | world | drop this |    5
    0 |   0 | hello0 | bar |    5 | hello5  | world | drop this |    5
    1 |   1 | hello1 | bar |   11 | hello11 | world | drop this |    5
    0 |   0 | hello0 | bar |   11 | hello11 | world | drop this |    5
    1 |   1 | hello1 | bar |   17 | hello17 | world | drop this |    5
    0 |   0 | hello0 | bar |   17 | hello17 | world | drop this |    5
    1 |   1 | hello1 | bar |   23 | hello23 | world | drop this |    5
    0 |   0 | hello0 | bar |   23 | hello23 | world | drop this |    5
    1 |   1 | hello1 | bar |   29 | hello29 | world | drop this |    5
    0 |   0 | hello0 | bar |   29 | hello29 | world | drop this |    5
    1 |   1 | hello1 | bar |   35 | hello35 | world | drop this |    5
    0 |   0 | hello0 | bar |   35 | hello35 | world | drop this |    5
    1 |   1 | hello1 | bar |   41 | hello41 | world | drop this |    5
    0 |   0 | hello0 | bar |   41 | hello41 | world | drop this |    5
    1 |   1 | hello1 | bar |   47 | hello47 | world | drop this |    5
    0 |   0 | hello0 | bar |   47 | hello47 | world | drop this |    5
    1 |   1 | hello1 | bar |   53 | hello53 | world | drop this |    5
    0 |   0 | hello0 | bar |   53 | hello53 | world | drop this |    5
    0 |   0 | hello0 | bar |    1 | hello1  | world | drop this |    1
    0 |   0 | hello0 | bar |    7 | hello7  | world | drop this |    1
    0 |   0 | hello0 | bar |   13 | hello13 | world | drop this |    1
    0 |   0 | hello0 | bar |   19 | hello19 | world | drop this |    1
    0 |   0 | hello0 | bar |   25 | hello25 | world | drop this |    1
    0 |   0 | hello0 | bar |   31 | hello31 | world | drop this |    1
    0 |   0 | hello0 | bar |   37 | hello37 | world | drop this |    1
    0 |   0 | hello0 | bar |   43 | hello43 | world | drop this |    1
    0 |   0 | hello0 | bar |   49 | hello49 | world | drop this |    1
    1 |   1 | hello1 | bar |    3 | hello3  | world | drop this |    3
    0 |   0 | hello0 | bar |    3 | hello3  | world | drop this |    3
    1 |   1 | hello1 | bar |    9 | hello9  | world | drop this |    3
    0 |   0 | hello0 | bar |    9 | hello9  | world | drop this |    3
    1 |   1 | hello1 | bar |   15 | hello15 | world | drop this |    3
    0 |   0 | hello0 | bar |   15 | hello15 | world | drop this |    3
    1 |   1 | hello1 | bar |   21 | hello21 | world | drop this |    3
    0 |   0 | hello0 | bar |   21 | hello21 | world | drop this |    3
    1 |   1 | hello1 | bar |   27 | hello27 | world | drop this |    3
    0 |   0 | hello0 | bar |   27 | hello27 | world | drop this |    3
    1 |   1 | hello1 | bar |   33 | hello33 | world | drop this |    3
    0 |   0 | hello0 | bar |   33 | hello33 | world | drop this |    3
    1 |   1 | hello1 | bar |   39 | hello39 | world | drop this |    3
    0 |   0 | hello0 | bar |   39 | hello39 | world | drop this |    3
    1 |   1 | hello1 | bar |   45 | hello45 | world | drop this |    3
    0 |   0 | hello0 | bar |   45 | hello45 | world | drop this |    3
    1 |   1 | hello1 | bar |   51 | hello51 | world | drop this |    3
    0 |   0 | hello0 | bar |   51 | hello51 | world | drop this |    3
(81 rows)

--
-- cascading joins
--
explain select * from t, t1, pt where t1.t2 = t.t2 and t1.tid = ptid;
754 755 756
                                                  QUERY PLAN                                                  
--------------------------------------------------------------------------------------------------------------
 Hash Join  (cost=0.00..916.02 rows=12 width=69)
H
Haisheng Yuan 已提交
757
   Hash Cond: t1.t2 = t.t2
758 759 760 761
   ->  Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..485.01 rows=18 width=50)
         ->  Nested Loop  (cost=0.00..485.01 rows=6 width=50)
               Join Filter: true
               ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
762
                     ->  Seq Scan on t1  (cost=0.00..431.00 rows=1 width=19)
763
               ->  Sequence  (cost=0.00..54.00 rows=3 width=31)
H
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764
                     ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
765 766 767
                           Partitions selected: 6 (out of 6)
                     ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..54.00 rows=3 width=31)
                           Index Cond: ptid = $0
H
Haisheng Yuan 已提交
768 769
   ->  Hash  (cost=431.00..431.00 rows=1 width=19)
         ->  Gather Motion 3:1  (slice3; segments: 3)  (cost=0.00..431.00 rows=2 width=19)
770
               ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19)
A
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771 772
 Optimizer: PQO version 2.55.21
(15 rows)
773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818

select * from t, t1, pt where t1.t2 = t.t2 and t1.tid = ptid;
 dist | tid |   t1   | t2  | dist | tid |   t1   | t2  | dist |   pt1   |  pt2  |    pt3    | ptid 
------+-----+--------+-----+------+-----+--------+-----+------+---------+-------+-----------+------
    1 |   1 | hello1 | bar |    0 |   0 | hello0 | bar |    0 | hello0  | world | drop this |    0
    0 |   0 | hello0 | bar |    0 |   0 | hello0 | bar |    0 | hello0  | world | drop this |    0
    1 |   1 | hello1 | bar |    0 |   0 | hello0 | bar |    6 | hello6  | world | drop this |    0
    0 |   0 | hello0 | bar |    0 |   0 | hello0 | bar |    6 | hello6  | world | drop this |    0
    1 |   1 | hello1 | bar |    0 |   0 | hello0 | bar |   12 | hello12 | world | drop this |    0
    0 |   0 | hello0 | bar |    0 |   0 | hello0 | bar |   12 | hello12 | world | drop this |    0
    1 |   1 | hello1 | bar |    0 |   0 | hello0 | bar |   18 | hello18 | world | drop this |    0
    0 |   0 | hello0 | bar |    0 |   0 | hello0 | bar |   18 | hello18 | world | drop this |    0
    1 |   1 | hello1 | bar |    0 |   0 | hello0 | bar |   24 | hello24 | world | drop this |    0
    0 |   0 | hello0 | bar |    0 |   0 | hello0 | bar |   24 | hello24 | world | drop this |    0
    1 |   1 | hello1 | bar |    0 |   0 | hello0 | bar |   30 | hello30 | world | drop this |    0
    0 |   0 | hello0 | bar |    0 |   0 | hello0 | bar |   30 | hello30 | world | drop this |    0
    1 |   1 | hello1 | bar |    0 |   0 | hello0 | bar |   36 | hello36 | world | drop this |    0
    0 |   0 | hello0 | bar |    0 |   0 | hello0 | bar |   36 | hello36 | world | drop this |    0
    1 |   1 | hello1 | bar |    0 |   0 | hello0 | bar |   42 | hello42 | world | drop this |    0
    0 |   0 | hello0 | bar |    0 |   0 | hello0 | bar |   42 | hello42 | world | drop this |    0
    1 |   1 | hello1 | bar |    0 |   0 | hello0 | bar |   48 | hello48 | world | drop this |    0
    0 |   0 | hello0 | bar |    0 |   0 | hello0 | bar |   48 | hello48 | world | drop this |    0
    1 |   1 | hello1 | bar |    1 |   1 | hello1 | bar |    1 | hello1  | world | drop this |    1
    0 |   0 | hello0 | bar |    1 |   1 | hello1 | bar |    1 | hello1  | world | drop this |    1
    1 |   1 | hello1 | bar |    1 |   1 | hello1 | bar |    7 | hello7  | world | drop this |    1
    0 |   0 | hello0 | bar |    1 |   1 | hello1 | bar |    7 | hello7  | world | drop this |    1
    1 |   1 | hello1 | bar |    1 |   1 | hello1 | bar |   13 | hello13 | world | drop this |    1
    0 |   0 | hello0 | bar |    1 |   1 | hello1 | bar |   13 | hello13 | world | drop this |    1
    1 |   1 | hello1 | bar |    1 |   1 | hello1 | bar |   19 | hello19 | world | drop this |    1
    0 |   0 | hello0 | bar |    1 |   1 | hello1 | bar |   19 | hello19 | world | drop this |    1
    1 |   1 | hello1 | bar |    1 |   1 | hello1 | bar |   25 | hello25 | world | drop this |    1
    0 |   0 | hello0 | bar |    1 |   1 | hello1 | bar |   25 | hello25 | world | drop this |    1
    1 |   1 | hello1 | bar |    1 |   1 | hello1 | bar |   31 | hello31 | world | drop this |    1
    0 |   0 | hello0 | bar |    1 |   1 | hello1 | bar |   31 | hello31 | world | drop this |    1
    1 |   1 | hello1 | bar |    1 |   1 | hello1 | bar |   37 | hello37 | world | drop this |    1
    0 |   0 | hello0 | bar |    1 |   1 | hello1 | bar |   37 | hello37 | world | drop this |    1
    1 |   1 | hello1 | bar |    1 |   1 | hello1 | bar |   43 | hello43 | world | drop this |    1
    0 |   0 | hello0 | bar |    1 |   1 | hello1 | bar |   43 | hello43 | world | drop this |    1
    1 |   1 | hello1 | bar |    1 |   1 | hello1 | bar |   49 | hello49 | world | drop this |    1
    0 |   0 | hello0 | bar |    1 |   1 | hello1 | bar |   49 | hello49 | world | drop this |    1
(36 rows)

--
-- explain analyze
--
explain analyze select * from t, pt where tid = ptid;
819 820 821 822 823 824
                                                                  QUERY PLAN                                                                   
-----------------------------------------------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..485.01 rows=18 width=50) (actual time=0.750..0.755 rows=18 loops=1)
   ->  Nested Loop  (cost=0.00..485.01 rows=6 width=50) (actual time=0.313..0.524 rows=9 loops=1)
         Join Filter: true
         ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=19) (actual time=0.208..0.358 rows=2 loops=1)
825
               ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=19) (actual time=0.020..0.021 rows=2 loops=1)
826 827 828 829 830 831
         ->  Sequence  (cost=0.00..54.00 rows=3 width=31) (actual time=0.048..0.075 rows=4 loops=2)
               ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4) (never executed)
                     Partitions selected: 6 (out of 6)
               ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..54.00 rows=3 width=31) (actual time=0.046..0.073 rows=4 loops=2)
                     Index Cond: ptid = $0
                     Partitions scanned:  Avg 6.0 (out of 6) x 3 workers of 2 scans.  Max 6 parts (seg0).
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832
   (slice0)    Executor memory: 386K bytes.
833 834 835
   (slice1)    Executor memory: 60K bytes avg x 3 workers, 62K bytes max (seg0).
   (slice2)    Executor memory: 155K bytes avg x 3 workers, 155K bytes max (seg0).
   (slice3)    
A
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836 837 838 839
 Memory used:  128000kB
 Optimizer: PQO version 2.55.21
 Total runtime: 2.810 ms
(17 rows)
840 841 842 843 844 845

--
-- Partitioned table on both sides of the join. This will create a result node as Append node is
-- not projection capable.
--
explain select * from pt, pt1 where pt.ptid = pt1.ptid and pt.pt1 = 'hello0' order by pt1.dist;
846 847
                                                           QUERY PLAN                                                           
--------------------------------------------------------------------------------------------------------------------------------
H
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848
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..434.02 rows=9 width=62)
849
   Merge Key: pt1.dist
850
   ->  Sort  (cost=0.00..434.02 rows=3 width=62)
851
         Sort Key: pt1.dist
852
         ->  Hash Join  (cost=0.00..434.02 rows=3 width=62)
853
               Hash Cond: pt1.ptid = pt.ptid
854
               ->  Dynamic Seq Scan on pt1 (dynamic scan id: 2)  (cost=0.00..431.00 rows=36 width=31)
H
Haisheng Yuan 已提交
855 856 857 858 859 860 861 862
               ->  Hash  (cost=100.00..100.00 rows=34 width=4)
                     ->  Partition Selector for pt1 (dynamic scan id: 2)  (cost=10.00..100.00 rows=34 width=4)
                           Filter: pt1.ptid = pt.ptid
                           ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..3.00 rows=1 width=31)
                                 ->  Sequence  (cost=0.00..3.00 rows=1 width=31)
                                       ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                                             Partitions selected: 6 (out of 6)
                                       ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..3.00 rows=1 width=31)
863
                                             Index Cond: pt1 = 'hello0'::text
H
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864 865 866
 Settings:  enable_bitmapscan=off; enable_hashjoin=on; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=off; enable_seqscan=on; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.5.0
(18 rows)
867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882

select * from pt, pt1 where pt.ptid = pt1.ptid and pt.pt1 = 'hello0' order by pt1.dist;
 dist |  pt1   |  pt2  |    pt3    | ptid | dist |   pt1   |  pt2  |    pt3    | ptid 
------+--------+-------+-----------+------+------+---------+-------+-----------+------
    0 | hello0 | world | drop this |    0 |    0 | hello0  | world | drop this |    0
    0 | hello0 | world | drop this |    0 |    6 | hello6  | world | drop this |    0
    0 | hello0 | world | drop this |    0 |   12 | hello12 | world | drop this |    0
    0 | hello0 | world | drop this |    0 |   18 | hello18 | world | drop this |    0
    0 | hello0 | world | drop this |    0 |   24 | hello24 | world | drop this |    0
    0 | hello0 | world | drop this |    0 |   30 | hello30 | world | drop this |    0
    0 | hello0 | world | drop this |    0 |   36 | hello36 | world | drop this |    0
    0 | hello0 | world | drop this |    0 |   42 | hello42 | world | drop this |    0
    0 | hello0 | world | drop this |    0 |   48 | hello48 | world | drop this |    0
(9 rows)

explain select count(*) from pt, pt1 where pt.ptid = pt1.ptid and pt.pt1 = 'hello0';
883 884
                                                                 QUERY PLAN                                                                 
--------------------------------------------------------------------------------------------------------------------------------------------
H
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885 886 887 888 889
 Aggregate  (cost=0.00..434.01 rows=1 width=8)
   ->  Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..434.01 rows=1 width=8)
         ->  Aggregate  (cost=0.00..434.01 rows=1 width=8)
               ->  Hash Join  (cost=0.00..434.01 rows=3 width=1)
                     Hash Cond: pt1.ptid = pt.ptid
890
                     ->  Dynamic Seq Scan on pt1 (dynamic scan id: 2)  (cost=0.00..431.00 rows=36 width=4)
H
Haisheng Yuan 已提交
891 892 893 894 895 896 897 898 899 900 901 902
                     ->  Hash  (cost=100.00..100.00 rows=34 width=4)
                           ->  Partition Selector for pt1 (dynamic scan id: 2)  (cost=10.00..100.00 rows=34 width=4)
                                 ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..3.00 rows=1 width=4)
                                       ->  Result  (cost=0.00..3.00 rows=1 width=4)
                                             ->  Sequence  (cost=0.00..3.00 rows=1 width=11)
                                                   ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                                                         Partitions selected: 6 (out of 6)
                                                   ->  Dynamic Index Scan on pt (dynamic scan id: 1)  (cost=0.00..3.00 rows=1 width=11)
                                                         Index Cond: pt1 = 'hello0'::text
 Settings:  enable_bitmapscan=off; enable_hashjoin=on; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=off; enable_seqscan=on; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.5.0
(18 rows)
903 904 905 906 907 908 909

select count(*) from pt, pt1 where pt.ptid = pt1.ptid and pt.pt1 = 'hello0';
 count 
-------
     9
(1 row)

910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939
--
-- Partition Selector under Material in NestLoopJoin inner side
--
drop table if exists pt;
drop table if exists t;
create table t(id int, a int);
NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause -- Using column named 'id' as the Greenplum Database data distribution key for this table.
HINT:  The 'DISTRIBUTED BY' clause determines the distribution of data. Make sure column(s) chosen are the optimal data distribution key to minimize skew.
create table pt(id int, b int) DISTRIBUTED BY (id) PARTITION BY RANGE(b) (START (0) END (5) EVERY (1));
NOTICE:  CREATE TABLE will create partition "pt_1_prt_1" for table "pt"
NOTICE:  CREATE TABLE will create partition "pt_1_prt_2" for table "pt"
NOTICE:  CREATE TABLE will create partition "pt_1_prt_3" for table "pt"
NOTICE:  CREATE TABLE will create partition "pt_1_prt_4" for table "pt"
NOTICE:  CREATE TABLE will create partition "pt_1_prt_5" for table "pt"
insert into t select i, i from generate_series(0,4) i;
insert into pt select i, i from generate_series(0,4) i;
analyze t;
analyze pt;
begin;
set enable_hashjoin=off;
set enable_seqscan=on;
set enable_nestloop=on;
explain select * from t, pt where a = b;
                                                                                               QUERY PLAN                                                                                                
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice3; segments: 3)  (cost=0.00..862.00 rows=5 width=16)
   ->  Hash Join  (cost=0.00..862.00 rows=2 width=16)
         Hash Cond: t.a = pt.b
         ->  Redistribute Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=2 width=8)
               Hash Key: t.a
940
               ->  Seq Scan on t  (cost=0.00..431.00 rows=2 width=8)
941 942 943 944 945 946
         ->  Hash  (cost=431.00..431.00 rows=2 width=8)
               ->  Redistribute Motion 3:3  (slice2; segments: 3)  (cost=0.00..431.00 rows=2 width=8)
                     Hash Key: pt.b
                     ->  Sequence  (cost=0.00..431.00 rows=2 width=8)
                           ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                                 Partitions selected: 5 (out of 5)
947
                           ->  Dynamic Seq Scan on pt (dynamic scan id: 1)  (cost=0.00..431.00 rows=2 width=8)
948 949 950 951 952 953 954 955 956 957 958 959 960 961
 Settings:  enable_bitmapscan=off; enable_hashjoin=off; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=on; enable_seqscan=on; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.26.0
(15 rows)

select * from t, pt where a = b;
 id | a | id | b 
----+---+----+---
  0 | 0 |  0 | 0
  1 | 1 |  1 | 1
  2 | 2 |  2 | 2
  3 | 3 |  3 | 3
  4 | 4 |  4 | 4
(5 rows)

962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993
rollback;
--
-- partition selector with 0 tuples and 0 matched partitions
--
drop table if exists t;
drop table if exists pt;
create table t(a int);
NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause -- Using column named 'a' as the Greenplum Database data distribution key for this table.
HINT:  The 'DISTRIBUTED BY' clause determines the distribution of data. Make sure column(s) chosen are the optimal data distribution key to minimize skew.
create table pt(b int) DISTRIBUTED BY (b) PARTITION BY RANGE(b)
(START (0) END (5) EVERY (1));
NOTICE:  CREATE TABLE will create partition "pt_1_prt_1" for table "pt"
NOTICE:  CREATE TABLE will create partition "pt_1_prt_2" for table "pt"
NOTICE:  CREATE TABLE will create partition "pt_1_prt_3" for table "pt"
NOTICE:  CREATE TABLE will create partition "pt_1_prt_4" for table "pt"
NOTICE:  CREATE TABLE will create partition "pt_1_prt_5" for table "pt"
begin;
set enable_hashjoin=off; -- foring nestloop join
set enable_nestloop=on;
set enable_seqscan=on;
-- 7 in seg1, 8 in seg2, no data in seg0
insert into t select i from generate_series(7,8) i;
-- 0~2 in seg0, 3~4 in seg 1, no data in seg2
insert into pt select i from generate_series(0,4) i;
analyze t;
analyze pt;
explain select * from t, pt where a = b;
                                                                                               QUERY PLAN                                                                                                
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice1; segments: 3)  (cost=0.00..862.00 rows=1 width=8)
   ->  Hash Join  (cost=0.00..862.00 rows=1 width=8)
         Hash Cond: pt.b = t.a
994
         ->  Dynamic Seq Scan on pt (dynamic scan id: 1)  (cost=0.00..431.00 rows=2 width=4)
995 996 997
         ->  Hash  (cost=100.00..100.00 rows=34 width=4)
               ->  Partition Selector for pt (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                     Filter: pt.b = t.a
998
                     ->  Seq Scan on t  (cost=0.00..431.00 rows=1 width=4)
999 1000 1001 1002 1003 1004 1005 1006 1007
 Settings:  enable_bitmapscan=off; enable_hashjoin=off; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=on; enable_seqscan=on; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.29.0
(10 rows)

select * from t, pt where a = b;
 a | b 
---+---
(0 rows)

1008
rollback;
1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043
--
-- Multi-level partitions
--
drop schema if exists dpe_multi cascade;
NOTICE:  schema "dpe_multi" does not exist, skipping
create schema dpe_multi;
set search_path='dpe_multi';
set gp_segments_for_planner=2;
set optimizer_segments=2;
create table dim1(dist int, pid int, code text, t1 text);
NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause -- Using column named 'dist' as the Greenplum Database data distribution key for this table.
HINT:  The 'DISTRIBUTED BY' clause determines the distribution of data. Make sure column(s) chosen are the optimal data distribution key to minimize skew.
insert into dim1 values (1, 0, 'OH', 'world1');
insert into dim1 values (1, 1, 'OH', 'world2');
insert into dim1 values (1, 100, 'GA', 'world2'); -- should not have a match at all
create table fact1(dist int, pid int, code text, u int)
partition by range(pid)
subpartition by list(code)
subpartition template 
(
 subpartition ca values('CA'),
 subpartition oh values('OH'),
 subpartition wa values('WA')
)
(
 start (0)
 end (4) 
 every (1)
);
NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause -- Using column named 'dist' as the Greenplum Database data distribution key for this table.
HINT:  The 'DISTRIBUTED BY' clause determines the distribution of data. Make sure column(s) chosen are the optimal data distribution key to minimize skew.
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_1" for table "fact1"
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_1_2_prt_ca" for table "fact1_1_prt_1"
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_1_2_prt_oh" for table "fact1_1_prt_1"
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_1_2_prt_wa" for table "fact1_1_prt_1"
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NOTICE:  CREATE TABLE will create partition "fact1_1_prt_2" for table "fact1"
1045 1046 1047
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_2_2_prt_ca" for table "fact1_1_prt_2"
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_2_2_prt_oh" for table "fact1_1_prt_2"
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_2_2_prt_wa" for table "fact1_1_prt_2"
A
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NOTICE:  CREATE TABLE will create partition "fact1_1_prt_3" for table "fact1"
1049 1050 1051
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_3_2_prt_ca" for table "fact1_1_prt_3"
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_3_2_prt_oh" for table "fact1_1_prt_3"
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_3_2_prt_wa" for table "fact1_1_prt_3"
A
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1052
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_4" for table "fact1"
1053 1054 1055 1056 1057 1058 1059 1060 1061 1062
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_4_2_prt_ca" for table "fact1_1_prt_4"
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_4_2_prt_oh" for table "fact1_1_prt_4"
NOTICE:  CREATE TABLE will create partition "fact1_1_prt_4_2_prt_wa" for table "fact1_1_prt_4"
insert into fact1 select 1, i % 4 , 'OH', i from generate_series (1,100) i;
insert into fact1 select 1, i % 4 , 'CA', i + 10000 from generate_series (1,100) i;
--
-- Join on all partitioning columns
--
set gp_dynamic_partition_pruning=off;
explain select * from dim1 inner join fact1 on (dim1.pid=fact1.pid and dim1.code=fact1.code) order by fact1.u;
H
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1063 1064 1065 1066 1067 1068 1069
                                                                                                                QUERY PLAN                                                                                                                 
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Sort  (cost=0.00..862.00 rows=1 width=38)
   Sort Key: fact1.u
   ->  Hash Join  (cost=0.00..862.00 rows=1 width=38)
         Hash Cond: dim1.pid = fact1.pid AND dim1.code = fact1.code
         ->  Gather Motion 3:1  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=18)
1070
               ->  Seq Scan on dim1  (cost=0.00..431.00 rows=1 width=18)
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1071 1072 1073 1074 1075
         ->  Hash  (cost=431.00..431.00 rows=1 width=20)
               ->  Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..431.00 rows=1 width=20)
                     ->  Sequence  (cost=0.00..431.00 rows=1 width=20)
                           ->  Partition Selector for fact1 (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                                 Partitions selected: 12 (out of 12)
1076
                           ->  Dynamic Seq Scan on fact1 (dynamic scan id: 1)  (cost=0.00..431.00 rows=1 width=20)
H
Haisheng Yuan 已提交
1077 1078 1079
 Settings:  enable_bitmapscan=off; enable_hashjoin=on; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=off; enable_seqscan=on; gp_dynamic_partition_pruning=off; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.5.0
(14 rows)
1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137

select * from dim1 inner join fact1 on (dim1.pid=fact1.pid and dim1.code=fact1.code) order by fact1.u;
 dist | pid | code |   t1   | dist | pid | code |  u  
------+-----+------+--------+------+-----+------+-----
    1 |   1 | OH   | world2 |    1 |   1 | OH   |   1
    1 |   0 | OH   | world1 |    1 |   0 | OH   |   4
    1 |   1 | OH   | world2 |    1 |   1 | OH   |   5
    1 |   0 | OH   | world1 |    1 |   0 | OH   |   8
    1 |   1 | OH   | world2 |    1 |   1 | OH   |   9
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  12
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  13
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  16
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  17
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  20
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  21
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  24
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  25
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  28
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  29
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  32
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  33
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  36
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  37
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  40
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  41
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  44
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  45
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  48
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  49
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  52
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  53
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  56
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  57
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  60
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  61
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  64
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  65
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  68
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  69
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  72
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  73
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  76
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  77
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  80
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  81
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  84
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  85
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  88
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  89
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  92
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  93
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  96
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  97
    1 |   0 | OH   | world1 |    1 |   0 | OH   | 100
(50 rows)

set gp_dynamic_partition_pruning=on;
explain select * from dim1 inner join fact1 on (dim1.pid=fact1.pid and dim1.code=fact1.code) order by fact1.u;
H
Haisheng Yuan 已提交
1138 1139 1140 1141 1142 1143 1144
                                                                                                                QUERY PLAN                                                                                                                
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Sort  (cost=0.00..862.00 rows=1 width=38)
   Sort Key: fact1.u
   ->  Hash Join  (cost=0.00..862.00 rows=1 width=38)
         Hash Cond: dim1.pid = fact1.pid AND dim1.code = fact1.code
         ->  Gather Motion 3:1  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=18)
1145
               ->  Seq Scan on dim1  (cost=0.00..431.00 rows=1 width=18)
H
Haisheng Yuan 已提交
1146 1147 1148 1149 1150
         ->  Hash  (cost=431.00..431.00 rows=1 width=20)
               ->  Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..431.00 rows=1 width=20)
                     ->  Sequence  (cost=0.00..431.00 rows=1 width=20)
                           ->  Partition Selector for fact1 (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                                 Partitions selected: 12 (out of 12)
1151
                           ->  Dynamic Seq Scan on fact1 (dynamic scan id: 1)  (cost=0.00..431.00 rows=1 width=20)
H
Haisheng Yuan 已提交
1152 1153 1154
 Settings:  enable_bitmapscan=off; enable_hashjoin=on; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=off; enable_seqscan=on; gp_dynamic_partition_pruning=on; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.5.0
(14 rows)
1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215

select * from dim1 inner join fact1 on (dim1.pid=fact1.pid and dim1.code=fact1.code) order by fact1.u;
 dist | pid | code |   t1   | dist | pid | code |  u  
------+-----+------+--------+------+-----+------+-----
    1 |   1 | OH   | world2 |    1 |   1 | OH   |   1
    1 |   0 | OH   | world1 |    1 |   0 | OH   |   4
    1 |   1 | OH   | world2 |    1 |   1 | OH   |   5
    1 |   0 | OH   | world1 |    1 |   0 | OH   |   8
    1 |   1 | OH   | world2 |    1 |   1 | OH   |   9
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  12
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  13
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  16
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  17
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  20
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  21
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  24
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  25
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  28
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  29
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  32
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  33
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  36
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  37
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  40
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  41
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  44
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  45
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  48
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  49
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  52
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  53
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  56
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  57
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  60
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  61
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  64
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  65
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  68
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  69
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  72
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  73
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  76
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  77
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  80
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  81
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  84
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  85
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  88
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  89
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  92
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  93
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  96
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  97
    1 |   0 | OH   | world1 |    1 |   0 | OH   | 100
(50 rows)

--
-- Join on one of the partitioning columns
--
set gp_dynamic_partition_pruning=off;
explain select * from dim1 inner join fact1 on (dim1.pid=fact1.pid) order by fact1.u;
H
Haisheng Yuan 已提交
1216 1217 1218 1219 1220 1221 1222
                                                                                                                QUERY PLAN                                                                                                                 
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Sort  (cost=0.00..862.00 rows=1 width=38)
   Sort Key: fact1.u
   ->  Hash Join  (cost=0.00..862.00 rows=1 width=38)
         Hash Cond: dim1.pid = fact1.pid
         ->  Gather Motion 3:1  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=18)
1223
               ->  Seq Scan on dim1  (cost=0.00..431.00 rows=1 width=18)
H
Haisheng Yuan 已提交
1224 1225 1226 1227 1228
         ->  Hash  (cost=431.00..431.00 rows=1 width=20)
               ->  Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..431.00 rows=1 width=20)
                     ->  Sequence  (cost=0.00..431.00 rows=1 width=20)
                           ->  Partition Selector for fact1 (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                                 Partitions selected: 12 (out of 12)
1229
                           ->  Dynamic Seq Scan on fact1 (dynamic scan id: 1)  (cost=0.00..431.00 rows=1 width=20)
H
Haisheng Yuan 已提交
1230 1231 1232
 Settings:  enable_bitmapscan=off; enable_hashjoin=on; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=off; enable_seqscan=on; gp_dynamic_partition_pruning=off; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.5.0
(14 rows)
1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340

select * from dim1 inner join fact1 on (dim1.pid=fact1.pid) order by fact1.u;
 dist | pid | code |   t1   | dist | pid | code |   u   
------+-----+------+--------+------+-----+------+-------
    1 |   1 | OH   | world2 |    1 |   1 | OH   |     1
    1 |   0 | OH   | world1 |    1 |   0 | OH   |     4
    1 |   1 | OH   | world2 |    1 |   1 | OH   |     5
    1 |   0 | OH   | world1 |    1 |   0 | OH   |     8
    1 |   1 | OH   | world2 |    1 |   1 | OH   |     9
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    12
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    13
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    16
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    17
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    20
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    21
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    24
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    25
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    28
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    29
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    32
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    33
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    36
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    37
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    40
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    41
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    44
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    45
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    48
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    49
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    52
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    53
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    56
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    57
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    60
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    61
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    64
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    65
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    68
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    69
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    72
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    73
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    76
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    77
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    80
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    81
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    84
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    85
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    88
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    89
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    92
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    93
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    96
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    97
    1 |   0 | OH   | world1 |    1 |   0 | OH   |   100
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10001
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10004
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10005
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10008
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10009
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10012
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10013
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10016
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10017
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10020
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10021
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10024
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10025
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10028
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10029
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10032
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10033
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10036
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10037
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10040
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10041
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10044
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10045
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10048
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10049
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10052
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10053
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10056
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10057
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10060
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10061
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10064
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10065
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10068
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10069
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10072
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10073
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10076
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10077
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10080
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10081
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10084
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10085
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10088
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10089
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10092
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10093
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10096
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10097
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10100
(100 rows)

set gp_dynamic_partition_pruning=on;
explain select * from dim1 inner join fact1 on (dim1.pid=fact1.pid) order by fact1.u;
H
Haisheng Yuan 已提交
1341 1342 1343 1344 1345 1346 1347
                                                                                                                QUERY PLAN                                                                                                                
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Sort  (cost=0.00..862.00 rows=1 width=38)
   Sort Key: fact1.u
   ->  Hash Join  (cost=0.00..862.00 rows=1 width=38)
         Hash Cond: dim1.pid = fact1.pid
         ->  Gather Motion 3:1  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=18)
1348
               ->  Seq Scan on dim1  (cost=0.00..431.00 rows=1 width=18)
H
Haisheng Yuan 已提交
1349 1350 1351 1352 1353
         ->  Hash  (cost=431.00..431.00 rows=1 width=20)
               ->  Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..431.00 rows=1 width=20)
                     ->  Sequence  (cost=0.00..431.00 rows=1 width=20)
                           ->  Partition Selector for fact1 (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                                 Partitions selected: 12 (out of 12)
1354
                           ->  Dynamic Seq Scan on fact1 (dynamic scan id: 1)  (cost=0.00..431.00 rows=1 width=20)
H
Haisheng Yuan 已提交
1355 1356 1357
 Settings:  enable_bitmapscan=off; enable_hashjoin=on; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=off; enable_seqscan=on; gp_dynamic_partition_pruning=on; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.5.0
(14 rows)
1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468

select * from dim1 inner join fact1 on (dim1.pid=fact1.pid) order by fact1.u;
 dist | pid | code |   t1   | dist | pid | code |   u   
------+-----+------+--------+------+-----+------+-------
    1 |   1 | OH   | world2 |    1 |   1 | OH   |     1
    1 |   0 | OH   | world1 |    1 |   0 | OH   |     4
    1 |   1 | OH   | world2 |    1 |   1 | OH   |     5
    1 |   0 | OH   | world1 |    1 |   0 | OH   |     8
    1 |   1 | OH   | world2 |    1 |   1 | OH   |     9
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    12
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    13
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    16
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    17
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    20
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    21
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    24
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    25
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    28
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    29
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    32
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    33
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    36
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    37
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    40
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    41
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    44
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    45
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    48
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    49
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    52
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    53
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    56
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    57
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    60
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    61
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    64
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    65
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    68
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    69
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    72
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    73
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    76
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    77
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    80
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    81
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    84
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    85
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    88
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    89
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    92
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    93
    1 |   0 | OH   | world1 |    1 |   0 | OH   |    96
    1 |   1 | OH   | world2 |    1 |   1 | OH   |    97
    1 |   0 | OH   | world1 |    1 |   0 | OH   |   100
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10001
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10004
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10005
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10008
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10009
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10012
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10013
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10016
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10017
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10020
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10021
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10024
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10025
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10028
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10029
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10032
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10033
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10036
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10037
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10040
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10041
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10044
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10045
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10048
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10049
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10052
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10053
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10056
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10057
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10060
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10061
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10064
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10065
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10068
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10069
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10072
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10073
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10076
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10077
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10080
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10081
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10084
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10085
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10088
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10089
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10092
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10093
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10096
    1 |   1 | OH   | world2 |    1 |   1 | CA   | 10097
    1 |   0 | OH   | world1 |    1 |   0 | CA   | 10100
(100 rows)

--
-- Join on one of the partitioning columns and static elimination on other
--
set gp_dynamic_partition_pruning=off;
explain select * from dim1 inner join fact1 on (dim1.pid=fact1.pid) and fact1.code = 'OH' order by fact1.u;
H
Haisheng Yuan 已提交
1469 1470 1471 1472 1473 1474 1475
                                                                                                                QUERY PLAN                                                                                                                 
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Sort  (cost=0.00..862.00 rows=1 width=38)
   Sort Key: fact1.u
   ->  Hash Join  (cost=0.00..862.00 rows=1 width=38)
         Hash Cond: dim1.pid = fact1.pid
         ->  Gather Motion 3:1  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=18)
1476
               ->  Seq Scan on dim1  (cost=0.00..431.00 rows=1 width=18)
H
Haisheng Yuan 已提交
1477 1478 1479 1480 1481 1482
         ->  Hash  (cost=431.00..431.00 rows=1 width=20)
               ->  Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..431.00 rows=1 width=20)
                     ->  Sequence  (cost=0.00..431.00 rows=1 width=20)
                           ->  Partition Selector for fact1 (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                                 Filter: fact1.code = 'OH'::text
                                 Partitions selected: 4 (out of 12)
1483
                           ->  Dynamic Seq Scan on fact1 (dynamic scan id: 1)  (cost=0.00..431.00 rows=1 width=20)
H
Haisheng Yuan 已提交
1484 1485 1486 1487
                                 Filter: code = 'OH'::text
 Settings:  enable_bitmapscan=off; enable_hashjoin=on; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=off; enable_seqscan=on; gp_dynamic_partition_pruning=off; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.5.0
(16 rows)
1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545

select * from dim1 inner join fact1 on (dim1.pid=fact1.pid) and fact1.code = 'OH' order by fact1.u;
 dist | pid | code |   t1   | dist | pid | code |  u  
------+-----+------+--------+------+-----+------+-----
    1 |   1 | OH   | world2 |    1 |   1 | OH   |   1
    1 |   0 | OH   | world1 |    1 |   0 | OH   |   4
    1 |   1 | OH   | world2 |    1 |   1 | OH   |   5
    1 |   0 | OH   | world1 |    1 |   0 | OH   |   8
    1 |   1 | OH   | world2 |    1 |   1 | OH   |   9
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  12
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  13
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  16
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  17
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  20
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  21
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  24
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  25
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  28
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  29
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  32
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  33
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  36
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  37
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  40
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  41
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  44
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  45
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  48
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  49
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  52
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  53
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  56
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  57
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  60
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  61
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  64
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  65
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  68
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  69
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  72
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  73
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  76
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  77
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  80
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  81
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  84
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  85
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  88
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  89
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  92
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  93
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  96
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  97
    1 |   0 | OH   | world1 |    1 |   0 | OH   | 100
(50 rows)

set gp_dynamic_partition_pruning=on;
explain select * from dim1 inner join fact1 on (dim1.pid=fact1.pid) and fact1.code = 'OH' order by fact1.u;
H
Haisheng Yuan 已提交
1546 1547 1548 1549 1550 1551 1552
                                                                                                                QUERY PLAN                                                                                                                
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Sort  (cost=0.00..862.00 rows=1 width=38)
   Sort Key: fact1.u
   ->  Hash Join  (cost=0.00..862.00 rows=1 width=38)
         Hash Cond: dim1.pid = fact1.pid
         ->  Gather Motion 3:1  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=18)
1553
               ->  Seq Scan on dim1  (cost=0.00..431.00 rows=1 width=18)
H
Haisheng Yuan 已提交
1554 1555 1556 1557 1558 1559
         ->  Hash  (cost=431.00..431.00 rows=1 width=20)
               ->  Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..431.00 rows=1 width=20)
                     ->  Sequence  (cost=0.00..431.00 rows=1 width=20)
                           ->  Partition Selector for fact1 (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                                 Filter: fact1.code = 'OH'::text
                                 Partitions selected: 4 (out of 12)
1560
                           ->  Dynamic Seq Scan on fact1 (dynamic scan id: 1)  (cost=0.00..431.00 rows=1 width=20)
1561
                                 Filter: code = 'OH'::text
H
Haisheng Yuan 已提交
1562 1563 1564
 Settings:  enable_bitmapscan=off; enable_hashjoin=on; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=off; enable_seqscan=on; gp_dynamic_partition_pruning=on; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.5.0
(16 rows)
1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625

select * from dim1 inner join fact1 on (dim1.pid=fact1.pid) and fact1.code = 'OH' order by fact1.u;
 dist | pid | code |   t1   | dist | pid | code |  u  
------+-----+------+--------+------+-----+------+-----
    1 |   1 | OH   | world2 |    1 |   1 | OH   |   1
    1 |   0 | OH   | world1 |    1 |   0 | OH   |   4
    1 |   1 | OH   | world2 |    1 |   1 | OH   |   5
    1 |   0 | OH   | world1 |    1 |   0 | OH   |   8
    1 |   1 | OH   | world2 |    1 |   1 | OH   |   9
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  12
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  13
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  16
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  17
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  20
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  21
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  24
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  25
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  28
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  29
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  32
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  33
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  36
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  37
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  40
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  41
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  44
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  45
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  48
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  49
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  52
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  53
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  56
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  57
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  60
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  61
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  64
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  65
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  68
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  69
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  72
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  73
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  76
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  77
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  80
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  81
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  84
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  85
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  88
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  89
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  92
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  93
    1 |   0 | OH   | world1 |    1 |   0 | OH   |  96
    1 |   1 | OH   | world2 |    1 |   1 | OH   |  97
    1 |   0 | OH   | world1 |    1 |   0 | OH   | 100
(50 rows)

--
-- add aggregates
--
set gp_dynamic_partition_pruning=off;
explain select fact1.code, count(*) from dim1 inner join fact1 on (dim1.pid=fact1.pid) group by 1 order by 1;
H
Haisheng Yuan 已提交
1626 1627 1628 1629 1630
                                                                                                                QUERY PLAN                                                                                                                 
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice3; segments: 3)  (cost=0.00..862.00 rows=1 width=16)
   Merge Key: fact1.code
   ->  GroupAggregate  (cost=0.00..862.00 rows=1 width=16)
A
Asim R P 已提交
1631
         Group Key: fact1.code
H
Haisheng Yuan 已提交
1632 1633 1634 1635 1636 1637
         ->  Sort  (cost=0.00..862.00 rows=1 width=16)
               Sort Key: fact1.code
               ->  Redistribute Motion 3:3  (slice2; segments: 3)  (cost=0.00..862.00 rows=1 width=16)
                     Hash Key: fact1.code
                     ->  Result  (cost=0.00..862.00 rows=1 width=16)
                           ->  GroupAggregate  (cost=0.00..862.00 rows=1 width=16)
A
Asim R P 已提交
1638
                                 Group Key: fact1.code
H
Haisheng Yuan 已提交
1639 1640 1641 1642
                                 ->  Sort  (cost=0.00..862.00 rows=1 width=8)
                                       Sort Key: fact1.code
                                       ->  Hash Join  (cost=0.00..862.00 rows=1 width=8)
                                             Hash Cond: fact1.pid = dim1.pid
1643
                                             ->  Dynamic Seq Scan on fact1 (dynamic scan id: 1)  (cost=0.00..431.00 rows=1 width=12)
H
Haisheng Yuan 已提交
1644 1645 1646 1647
                                             ->  Hash  (cost=100.00..100.00 rows=34 width=4)
                                                   ->  Partition Selector for fact1 (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                                                         Filter: fact1.dist = dim1.pid
                                                         ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=4)
1648
                                                               ->  Seq Scan on dim1  (cost=0.00..431.00 rows=1 width=4)
H
Haisheng Yuan 已提交
1649 1650 1651
 Settings:  enable_bitmapscan=off; enable_hashjoin=on; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=off; enable_seqscan=on; gp_dynamic_partition_pruning=off; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.5.0
(23 rows)
1652 1653 1654 1655 1656 1657 1658 1659 1660 1661

select fact1.code, count(*) from dim1 inner join fact1 on (dim1.pid=fact1.pid) group by 1 order by 1;
 code | count 
------+-------
 CA   |    50
 OH   |    50
(2 rows)

set gp_dynamic_partition_pruning=on;
explain select fact1.code, count(*) from dim1 inner join fact1 on (dim1.pid=fact1.pid) group by 1 order by 1;
H
Haisheng Yuan 已提交
1662 1663 1664 1665 1666
                                                                                                                QUERY PLAN                                                                                                                
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice3; segments: 3)  (cost=0.00..862.00 rows=1 width=16)
   Merge Key: fact1.code
   ->  GroupAggregate  (cost=0.00..862.00 rows=1 width=16)
A
Asim R P 已提交
1667
         Group Key: fact1.code
H
Haisheng Yuan 已提交
1668 1669 1670 1671 1672 1673
         ->  Sort  (cost=0.00..862.00 rows=1 width=16)
               Sort Key: fact1.code
               ->  Redistribute Motion 3:3  (slice2; segments: 3)  (cost=0.00..862.00 rows=1 width=16)
                     Hash Key: fact1.code
                     ->  Result  (cost=0.00..862.00 rows=1 width=16)
                           ->  GroupAggregate  (cost=0.00..862.00 rows=1 width=16)
A
Asim R P 已提交
1674
                                 Group Key: fact1.code
H
Haisheng Yuan 已提交
1675 1676 1677 1678
                                 ->  Sort  (cost=0.00..862.00 rows=1 width=8)
                                       Sort Key: fact1.code
                                       ->  Hash Join  (cost=0.00..862.00 rows=1 width=8)
                                             Hash Cond: fact1.pid = dim1.pid
1679
                                             ->  Dynamic Seq Scan on fact1 (dynamic scan id: 1)  (cost=0.00..431.00 rows=1 width=12)
H
Haisheng Yuan 已提交
1680 1681 1682 1683
                                             ->  Hash  (cost=100.00..100.00 rows=34 width=4)
                                                   ->  Partition Selector for fact1 (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                                                         Filter: fact1.dist = dim1.pid
                                                         ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=4)
1684
                                                               ->  Seq Scan on dim1  (cost=0.00..431.00 rows=1 width=4)
H
Haisheng Yuan 已提交
1685 1686 1687
 Settings:  enable_bitmapscan=off; enable_hashjoin=on; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=off; enable_seqscan=on; gp_dynamic_partition_pruning=on; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.5.0
(23 rows)
1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726

select fact1.code, count(*) from dim1 inner join fact1 on (dim1.pid=fact1.pid) group by 1 order by 1;
 code | count 
------+-------
 CA   |    50
 OH   |    50
(2 rows)

--
-- multi-attribute list partitioning
--
drop schema if exists dpe_malp cascade;
NOTICE:  schema "dpe_malp" does not exist, skipping
create schema dpe_malp;
set search_path='dpe_malp';
set gp_segments_for_planner=2;
set optimizer_segments=2;
create table malp (i int, j int, t text) 
distributed by (i) 
partition by list (i, j) 
( 
partition p1 values((1,10)) ,
partition p2 values((2,20)),
partition p3 values((3,30)) 
);
NOTICE:  CREATE TABLE will create partition "malp_1_prt_p1" for table "malp"
NOTICE:  CREATE TABLE will create partition "malp_1_prt_p2" for table "malp"
NOTICE:  CREATE TABLE will create partition "malp_1_prt_p3" for table "malp"
insert into malp select 1, 10, 'hello1';
insert into malp select 1, 10, 'hello2';
insert into malp select 1, 10, 'hello3';
insert into malp select 2, 20, 'hello4';
insert into malp select 2, 20, 'hello5';
insert into malp select 3, 30, 'hello6';
create table dim(i int, j int)
distributed randomly;
insert into dim values(1, 10);
analyze malp;
analyze dim;
1727 1728
-- ORCA doesn't do multi-attribute partitioning currently,so this falls
-- back to the Postgres planner
1729
explain select * from dim inner join malp on (dim.i = malp.i);
1730 1731 1732 1733 1734
                                                QUERY PLAN                                                
----------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice2; segments: 3)  (cost=1.04..4.18 rows=6 width=23)
   ->  Hash Join  (cost=1.04..4.18 rows=2 width=23)
         Hash Cond: malp_1_prt_p1.i = dim.i
1735 1736 1737
         ->  Append  (cost=0.00..3.06 rows=2 width=15)
               ->  Result  (cost=0.00..1.03 rows=1 width=15)
                     One-Time Filter: PartSelected
1738
                     ->  Seq Scan on malp_1_prt_p1  (cost=0.00..1.03 rows=1 width=15)
1739
               ->  Result  (cost=0.00..1.02 rows=1 width=15)
1740
                     One-Time Filter: PartSelected
1741
                     ->  Seq Scan on malp_1_prt_p2  (cost=0.00..1.02 rows=1 width=15)
1742
               ->  Result  (cost=0.00..1.01 rows=1 width=15)
1743
                     One-Time Filter: PartSelected
1744
                     ->  Seq Scan on malp_1_prt_p3  (cost=0.00..1.01 rows=1 width=15)
1745
         ->  Hash  (cost=1.03..1.03 rows=1 width=8)
1746 1747 1748 1749 1750
               ->  Partition Selector for malp (dynamic scan id: 1)  (cost=0.00..1.03 rows=1 width=8)
                     Filter: dim.i
                     ->  Redistribute Motion 3:3  (slice1; segments: 3)  (cost=0.00..1.03 rows=1 width=8)
                           Hash Key: dim.i
                           ->  Seq Scan on dim  (cost=0.00..1.01 rows=1 width=8)
1751 1752
 Optimizer: legacy query optimizer
(20 rows)
1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780

set gp_dynamic_partition_pruning = off;
select * from dim inner join malp on (dim.i = malp.i);
 i | j  | i | j  |   t    
---+----+---+----+--------
 1 | 10 | 1 | 10 | hello1
 1 | 10 | 1 | 10 | hello2
 1 | 10 | 1 | 10 | hello3
(3 rows)

set gp_dynamic_partition_pruning = on;
select * from dim inner join malp on (dim.i = malp.i);
 i | j  | i | j  |   t    
---+----+---+----+--------
 1 | 10 | 1 | 10 | hello1
 1 | 10 | 1 | 10 | hello2
 1 | 10 | 1 | 10 | hello3
(3 rows)

set gp_dynamic_partition_pruning = on;
select * from dim inner join malp on (dim.i = malp.i and dim.j = malp.j); -- only one partition should be chosen
 i | j  | i | j  |   t    
---+----+---+----+--------
 1 | 10 | 1 | 10 | hello1
 1 | 10 | 1 | 10 | hello2
 1 | 10 | 1 | 10 | hello3
(3 rows)

1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813
--
-- Plan where the Append that the PartitionSelector affects is not the immediate child
-- of the join.
--
create table apart (id int4, t text) partition by range (id) (start (1) end (1000) every (200));
NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause -- Using column named 'id' as the Greenplum Database data distribution key for this table.
HINT:  The 'DISTRIBUTED BY' clause determines the distribution of data. Make sure column(s) chosen are the optimal data distribution key to minimize skew.
NOTICE:  CREATE TABLE will create partition "apart_1_prt_1" for table "apart"
NOTICE:  CREATE TABLE will create partition "apart_1_prt_2" for table "apart"
NOTICE:  CREATE TABLE will create partition "apart_1_prt_3" for table "apart"
NOTICE:  CREATE TABLE will create partition "apart_1_prt_4" for table "apart"
NOTICE:  CREATE TABLE will create partition "apart_1_prt_5" for table "apart"
create table b (id int4, t text);
NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause -- Using column named 'id' as the Greenplum Database data distribution key for this table.
HINT:  The 'DISTRIBUTED BY' clause determines the distribution of data. Make sure column(s) chosen are the optimal data distribution key to minimize skew.
create table c (id int4, t text);
NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause -- Using column named 'id' as the Greenplum Database data distribution key for this table.
HINT:  The 'DISTRIBUTED BY' clause determines the distribution of data. Make sure column(s) chosen are the optimal data distribution key to minimize skew.
insert into apart select g, g from generate_series(1, 999) g;
insert into b select g, g from generate_series(1, 5) g;
insert into c select g, g from generate_series(1, 20) g;
analyze apart;
analyze b;
analyze c;
set gp_dynamic_partition_pruning = off;
explain select * from apart as a, b, c where a.t = b.t and a.id = c.id;
                                                                                                                QUERY PLAN                                                                                                                 
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..1293.11 rows=1 width=19)
   ->  Hash Join  (cost=0.00..1293.11 rows=1 width=19)
         Hash Cond: apart.id = c.id
         ->  Hash Join  (cost=0.00..862.11 rows=2 width=13)
               Hash Cond: apart.t = b.t
1814
               ->  Dynamic Seq Scan on apart (dynamic scan id: 1)  (cost=0.00..431.01 rows=333 width=7)
1815 1816
               ->  Hash  (cost=431.00..431.00 rows=4 width=6)
                     ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=4 width=6)
1817
                           ->  Seq Scan on b  (cost=0.00..431.00 rows=2 width=6)
1818 1819 1820
         ->  Hash  (cost=100.00..100.00 rows=34 width=4)
               ->  Partition Selector for apart (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                     Filter: c.id = c.id
1821
                     ->  Seq Scan on c  (cost=0.00..431.00 rows=7 width=6)
1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844
 Settings:  enable_bitmapscan=off; enable_hashjoin=on; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=off; enable_seqscan=on; gp_dynamic_partition_pruning=off; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.13.0
(15 rows)

select * from apart as a, b, c where a.t = b.t and a.id = c.id;
 id | t | id | t | id | t 
----+---+----+---+----+---
  3 | 3 |  3 | 3 |  3 | 3
  4 | 4 |  4 | 4 |  4 | 4
  5 | 5 |  5 | 5 |  5 | 5
  1 | 1 |  1 | 1 |  1 | 1
  2 | 2 |  2 | 2 |  2 | 2
(5 rows)

set gp_dynamic_partition_pruning = on;
explain select * from apart as a, b, c where a.t = b.t and a.id = c.id;
                                                                                                                QUERY PLAN                                                                                                                
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..1293.11 rows=1 width=19)
   ->  Hash Join  (cost=0.00..1293.11 rows=1 width=19)
         Hash Cond: apart.id = c.id
         ->  Hash Join  (cost=0.00..862.11 rows=2 width=13)
               Hash Cond: apart.t = b.t
1845
               ->  Dynamic Seq Scan on apart (dynamic scan id: 1)  (cost=0.00..431.01 rows=333 width=7)
1846 1847
               ->  Hash  (cost=431.00..431.00 rows=4 width=6)
                     ->  Broadcast Motion 3:3  (slice1; segments: 3)  (cost=0.00..431.00 rows=4 width=6)
1848
                           ->  Seq Scan on b  (cost=0.00..431.00 rows=2 width=6)
1849 1850 1851
         ->  Hash  (cost=100.00..100.00 rows=34 width=4)
               ->  Partition Selector for apart (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                     Filter: c.id = c.id
1852
                     ->  Seq Scan on c  (cost=0.00..431.00 rows=7 width=6)
1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866
 Settings:  enable_bitmapscan=off; enable_hashjoin=on; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=off; enable_seqscan=on; gp_dynamic_partition_pruning=on; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.13.0
(15 rows)

select * from apart as a, b, c where a.t = b.t and a.id = c.id;
 id | t | id | t | id | t 
----+---+----+---+----+---
  3 | 3 |  3 | 3 |  3 | 3
  4 | 4 |  4 | 4 |  4 | 4
  5 | 5 |  5 | 5 |  5 | 5
  1 | 1 |  1 | 1 |  1 | 1
  2 | 2 |  2 | 2 |  2 | 2
(5 rows)

1867
--
V
Venkatesh Raghavan 已提交
1868
-- DPE: assertion failed with window function
1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889
--
drop schema if exists dpe_bugs cascade;
NOTICE:  schema "dpe_bugs" does not exist, skipping
create schema dpe_bugs;
set search_path='dpe_bugs';
set gp_segments_for_planner=2;
set optimizer_segments=2;
create table pat(a int, b date) partition by range (b) (start ('2010-01-01') end ('2010-01-05') every (1), default partition other);
NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause -- Using column named 'a' as the Greenplum Database data distribution key for this table.
HINT:  The 'DISTRIBUTED BY' clause determines the distribution of data. Make sure column(s) chosen are the optimal data distribution key to minimize skew.
NOTICE:  CREATE TABLE will create partition "pat_1_prt_other" for table "pat"
NOTICE:  CREATE TABLE will create partition "pat_1_prt_2" for table "pat"
NOTICE:  CREATE TABLE will create partition "pat_1_prt_3" for table "pat"
NOTICE:  CREATE TABLE will create partition "pat_1_prt_4" for table "pat"
NOTICE:  CREATE TABLE will create partition "pat_1_prt_5" for table "pat"
insert into pat select i,date '2010-01-01' + i from generate_series(1, 10)i;  
create table jpat(a int, b date);
NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause -- Using column named 'a' as the Greenplum Database data distribution key for this table.
HINT:  The 'DISTRIBUTED BY' clause determines the distribution of data. Make sure column(s) chosen are the optimal data distribution key to minimize skew.
insert into jpat values(1, '2010-01-02');
explain select * from (select count(*) over (order by a rows between 1 preceding and 1 following), a, b from jpat)jpat inner join pat using(b);
H
Haisheng Yuan 已提交
1890 1891 1892
                                                                                                                QUERY PLAN                                                                                                                
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Hash Join  (cost=0.00..862.00 rows=1 width=20)
1893
   Hash Cond: jpat.b = pat.b
1894
   ->  WindowAgg  (cost=0.00..431.00 rows=1 width=16)
A
Asim R P 已提交
1895
         Order By:  count(*) OVER (?)
H
Haisheng Yuan 已提交
1896 1897 1898 1899
         ->  Gather Motion 3:1  (slice1; segments: 3)  (cost=0.00..431.00 rows=1 width=8)
               Merge Key: jpat.a
               ->  Sort  (cost=0.00..431.00 rows=1 width=8)
                     Sort Key: jpat.a
1900
                     ->  Seq Scan on jpat  (cost=0.00..431.00 rows=1 width=8)
H
Haisheng Yuan 已提交
1901 1902 1903 1904 1905
   ->  Hash  (cost=431.00..431.00 rows=1 width=8)
         ->  Gather Motion 3:1  (slice2; segments: 3)  (cost=0.00..431.00 rows=1 width=8)
               ->  Sequence  (cost=0.00..431.00 rows=1 width=8)
                     ->  Partition Selector for pat (dynamic scan id: 1)  (cost=10.00..100.00 rows=34 width=4)
                           Partitions selected: 5 (out of 5)
1906
                     ->  Dynamic Seq Scan on pat (dynamic scan id: 1)  (cost=0.00..431.00 rows=1 width=8)
H
Haisheng Yuan 已提交
1907 1908 1909
 Settings:  enable_bitmapscan=off; enable_hashjoin=on; enable_indexscan=off; enable_mergejoin=off; enable_nestloop=off; enable_seqscan=on; gp_dynamic_partition_pruning=on; gp_segments_for_planner=2; optimizer=on; optimizer_segments=2
 Optimizer status: PQO version 2.5.0
(17 rows)
1910 1911 1912 1913 1914 1915 1916

select * from (select count(*) over (order by a rows between 1 preceding and 1 following), a, b from jpat)jpat inner join pat using(b);
     b      | count | a | a 
------------+-------+---+---
 01-02-2010 |     1 | 1 | 1
(1 row)