forked from huawei/openGauss-server
69 lines
2.3 KiB
SQL
69 lines
2.3 KiB
SQL
create schema vector_distribute_prepare;
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set current_schema = vector_distribute_prepare;
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create table test_prepare_1(a int, b numeric) ;
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create table test_prepare_2(a int, b int) ;
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insert into test_prepare_1 values(1, 1),(1, 1),(1, 1);
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insert into test_prepare_2 values(1, 1),(1, 1),(1, 1);
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create table prepare_table_01(a int, b int) with (orientation = column) ;
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insert into prepare_table_01 select * from test_prepare_1;
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create table prepare_table_02(a int, b int) with (orientation = column) ;
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insert into prepare_table_02 select * from test_prepare_2;
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analyze prepare_table_01;
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analyze prepare_table_02;
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prepare p1 as select * from prepare_table_01, prepare_table_02 where prepare_table_01.a = prepare_table_02.a;
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prepare p2(int) as select * from prepare_table_01, prepare_table_02 where prepare_table_01.a = prepare_table_02.a and prepare_table_01.b = $1;
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prepare p3 as select * from prepare_table_01, prepare_table_02 where prepare_table_01.a = prepare_table_02.a;
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prepare p4(int) as select * from prepare_table_01, prepare_table_02 where prepare_table_01.a = prepare_table_02.a and prepare_table_01.b = $1;
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--stream plan and stream exec.
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explain (costs off, verbose on) execute p1;
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execute p1;
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execute p1;
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explain (costs off, verbose on) execute p2(1);
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execute p2(1);
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execute p2(1);
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execute p2(2);
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execute p2(2);
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--remote plan and stream exec.
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explain (costs off, verbose on) execute p3;
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execute p3;
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explain (costs off, verbose on) execute p4(1);
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execute p4(1);
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--stream plan and remote exec.
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explain (costs off, verbose on) execute p1;
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execute p1;
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execute p1;
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explain (costs off, verbose on) execute p2(1);
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execute p2(1);
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execute p2(1);
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execute p2(2);
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--remote plan and remote exec.
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explain (costs off, verbose on) execute p3;
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execute p3;
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explain (costs off, verbose on) execute p4(1);
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execute p4(1);
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prepare p5 as select a from prepare_table_01 INTERSECT select a from prepare_table_02 order by 1 limit 1;
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explain (costs off, verbose on) execute p5;
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prepare p6 as (select * from prepare_table_01) union (select * from prepare_table_02);
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explain (costs off, verbose on) execute p6;
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prepare p7 as select a from prepare_table_01 where current_date<'2013-07-20' ;
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explain (costs off, verbose on) execute p7;
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drop table test_prepare_1;
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drop table test_prepare_2;
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drop table prepare_table_01;
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drop table prepare_table_02;
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drop schema vector_distribute_prepare cascade; |