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e10d81448d
Fixed warnings by valgrind for sum_distinct.test Enable buffered-record-reads after filesort for InnoDB tables with short primary key Enabled sort-with-data for MyISAM temporary files BitKeeper/etc/ignore: added tools/mysqltestmanager client/mysqltest.c: Ensure that BIG_TEST is always set to 0 or 1 Fix the 'eval' also honors 'require' mysql-test/mysql-test-run.sh: Enlarge InnoDB table space for --big tests mysql-test/r/heap.result: Fix after adding more optimzation for filsort mysql-test/r/sum_distinct.result: Move 'slow' part of test to sum_distinct-big.test mysql-test/t/heap.test: Ensure that results are indpendent of optimizer mysql-test/t/sum_distinct.test: Move 'slow' part of test to sum_distinct-big.test sql/filesort.cc: Use 'sort with data' also on temporary files and with INSERT ... SELECT sql/ha_innodb.h: Remove HA_FAST_KEY_READ to enable buffered-record-reads after filesort sql/handler.h: More comments sql/mysql_priv.h: A bit smaller limit for cache for buffered-records-read (after testing) sql/records.cc: Don't use buffered-record-reads if ref_length > MAX_REFLENGTH Fixed warning from valgrind in 'sum_distinct' sql/sql_select.cc: Ensure that tempory tables has query_id set for all fields (Required for sort-with-data to work on temp files)
67 lines
2 KiB
Text
67 lines
2 KiB
Text
#
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# Various tests for SUM(DISTINCT ...)
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#
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--source include/big_test.inc
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--disable_warnings
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DROP TABLE IF EXISTS t1, t2;
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--enable_warnings
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#
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# Test the case when distinct values doesn't fit in memory and
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# filesort is used (see uniques.cc:merge_walk)
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#
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CREATE TABLE t1 (id INTEGER);
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CREATE TABLE t2 (id INTEGER);
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INSERT INTO t1 (id) VALUES (1), (1), (1),(1);
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INSERT INTO t1 (id) SELECT id FROM t1; /* 8 */
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INSERT INTO t1 (id) SELECT id FROM t1; /* 12 */
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INSERT INTO t1 (id) SELECT id FROM t1; /* 16 */
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INSERT INTO t1 (id) SELECT id FROM t1; /* 20 */
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INSERT INTO t1 (id) SELECT id FROM t1; /* 24 */
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INSERT INTO t1 SELECT id+1 FROM t1;
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INSERT INTO t1 SELECT id+2 FROM t1;
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INSERT INTO t1 SELECT id+4 FROM t1;
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INSERT INTO t1 SELECT id+8 FROM t1;
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INSERT INTO t1 SELECT id+16 FROM t1;
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INSERT INTO t1 SELECT id+32 FROM t1;
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INSERT INTO t1 SELECT id+64 FROM t1;
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INSERT INTO t1 SELECT id+128 FROM t1;
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INSERT INTO t1 SELECT id+256 FROM t1;
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INSERT INTO t1 SELECT id+512 FROM t1;
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# Just test that AVG(DISTINCT) is there
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SELECT AVG(DISTINCT id) FROM t1 GROUP BY id % 13;
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SELECT SUM(DISTINCT id)/COUNT(DISTINCT id) FROM t1 GROUP BY id % 13;
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INSERT INTO t1 SELECT id+1024 FROM t1;
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INSERT INTO t1 SELECT id+2048 FROM t1;
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INSERT INTO t1 SELECT id+4096 FROM t1;
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INSERT INTO t1 SELECT id+8192 FROM t1;
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INSERT INTO t2 SELECT id FROM t1 ORDER BY id*rand();
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# SELECT '++++++++++++++++++++++++++++++++++++++++++++++++++';
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SELECT SUM(DISTINCT id) sm FROM t1;
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SELECT SUM(DISTINCT id) sm FROM t2;
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SELECT SUM(DISTINCT id) sm FROM t1 group by id % 13;
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# this limit for max_heap_table_size is set to force testing the case, when
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# all distinct sum values can not fit in memory and must be stored in a
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# temporary table
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SET max_heap_table_size=16384;
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# to check that max_heap_table_size was actually set (hard limit for minimum
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# max_heap_table_size is set in mysqld.cc):
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SHOW variables LIKE 'max_heap_table_size';
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SELECT SUM(DISTINCT id) sm FROM t1;
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SELECT SUM(DISTINCT id) sm FROM t2;
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SELECT SUM(DISTINCT id) sm FROM t1 GROUP BY id % 13;
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DROP TABLE t1;
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DROP TABLE t2;
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