2026-03-12 20:23:15

tpt/aot/demo8.sql

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+-- Copyright 2018 Tanel Poder. All rights reserved. More info at http://tanelpoder.com
+-- Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.
+
+-- test case from http://forums.oracle.com/forums/thread.jspa?threadID=2228426
+--
+--  When I choose a high_value > 100000 the grouping query runs < 1 sec.
+--  With high_value = 100000: < 1 sec
+--  With high_value = 90000: < 1 sec
+--  With high_value = 80000: 3 sec
+--  With high_value = 70000: 9 sec
+--  With high_value = 60000: 17 sec
+--  With high_value = 50000: 28 sec
+--  With high_value = 40000: 34 sec
+--  With high_value = 30000: 47 sec
+--  With high_value = 20000: 61 sec
+--  With high_value = 10000: 76 sec
+--  With high_value = 1: 102 sec
+
+
+
+set verify off
+undefine high_value
+ 
+drop table test_interval_p1_&&high_value;
+ 
+create table test_interval_p1_&high_value
+  partition by range (id)
+  interval (1)
+  (partition test_p1 values less than (&high_value))
+as
+select 100000 id
+     , t.*
+  from all_objects t
+ where 1 = 0;
+ 
+insert into test_interval_p1_&high_value
+select 100000 id
+     , t.*
+  from all_objects t;
+ 
+commit;
+ 
+-- pause
+  
+select id, count(*)
+  from test_interval_p1_&high_value
+ group by id;
+