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Commit4b1dd62

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Improve code coverage of select_parallel test.
Make sure that rescans of parallel indexscans are tested.Per code coverage report.
1 parentb5c75fe commit4b1dd62

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+75
-0
lines changed

2 files changed

+75
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‎src/test/regress/expected/select_parallel.out

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@@ -179,6 +179,61 @@ select count(*) from tenk1 where thousand > 95;
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(1 row)
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-- test rescan cases too
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set enable_material = false;
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explain (costs off)
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select * from
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(select count(unique1) from tenk1 where hundred > 10) ss
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right join (values (1),(2),(3)) v(x) on true;
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QUERY PLAN
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--------------------------------------------------------------------------
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Nested Loop Left Join
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-> Values Scan on "*VALUES*"
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-> Finalize Aggregate
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-> Gather
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Workers Planned: 4
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-> Partial Aggregate
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-> Parallel Index Scan using tenk1_hundred on tenk1
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Index Cond: (hundred > 10)
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(8 rows)
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select * from
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(select count(unique1) from tenk1 where hundred > 10) ss
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right join (values (1),(2),(3)) v(x) on true;
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count | x
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-------+---
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8900 | 1
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8900 | 2
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8900 | 3
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(3 rows)
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explain (costs off)
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select * from
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(select count(*) from tenk1 where thousand > 99) ss
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right join (values (1),(2),(3)) v(x) on true;
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QUERY PLAN
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--------------------------------------------------------------------------------------
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Nested Loop Left Join
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-> Values Scan on "*VALUES*"
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-> Finalize Aggregate
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-> Gather
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Workers Planned: 4
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-> Partial Aggregate
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-> Parallel Index Only Scan using tenk1_thous_tenthous on tenk1
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Index Cond: (thousand > 99)
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(8 rows)
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select * from
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(select count(*) from tenk1 where thousand > 99) ss
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right join (values (1),(2),(3)) v(x) on true;
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count | x
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-------+---
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9000 | 1
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9000 | 2
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9000 | 3
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(3 rows)
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reset enable_material;
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reset enable_seqscan;
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reset enable_bitmapscan;
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-- test parallel bitmap heap scan.

‎src/test/regress/sql/select_parallel.sql

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Original file line numberDiff line numberDiff line change
@@ -65,6 +65,26 @@ explain (costs off)
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selectcount(*)from tenk1where thousand>95;
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selectcount(*)from tenk1where thousand>95;
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-- test rescan cases too
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set enable_material= false;
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explain (costs off)
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select*from
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(selectcount(unique1)from tenk1where hundred>10) ss
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right join (values (1),(2),(3)) v(x)on true;
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select*from
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(selectcount(unique1)from tenk1where hundred>10) ss
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right join (values (1),(2),(3)) v(x)on true;
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explain (costs off)
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select*from
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(selectcount(*)from tenk1where thousand>99) ss
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right join (values (1),(2),(3)) v(x)on true;
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select*from
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(selectcount(*)from tenk1where thousand>99) ss
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right join (values (1),(2),(3)) v(x)on true;
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reset enable_material;
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reset enable_seqscan;
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reset enable_bitmapscan;
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