diff options
Diffstat (limited to '')
| -rw-r--r-- | mysql-test/suite/innodb/r/records_in_range.result | 1275 |
1 files changed, 1275 insertions, 0 deletions
diff --git a/mysql-test/suite/innodb/r/records_in_range.result b/mysql-test/suite/innodb/r/records_in_range.result new file mode 100644 index 00000000..e5a698f5 --- /dev/null +++ b/mysql-test/suite/innodb/r/records_in_range.result @@ -0,0 +1,1275 @@ +CREATE TABLE records_in_range_test ( +c1 VARCHAR(16), +c2 VARCHAR(512), +PRIMARY KEY (c1) +) ENGINE=INNODB STATS_PERSISTENT=1; +INSERT INTO records_in_range_test VALUES +('ccc', REPEAT('v', 512)), +('kkk01', REPEAT('v', 512)), +('kkk02', REPEAT('v', 512)), +('kkk03', REPEAT('v', 512)), +('kkk04', REPEAT('v', 512)), +('kkk05', REPEAT('v', 512)), +('kkk06', REPEAT('v', 512)), +('kkk07', REPEAT('v', 512)), +('kkk08', REPEAT('v', 512)), +('mmm', REPEAT('v', 512)), +('nnn', REPEAT('v', 512)), +('uuu01', REPEAT('v', 512)), +('uuu02', REPEAT('v', 512)), +('uuu03', REPEAT('v', 512)), +('uuu04', REPEAT('v', 512)), +('uuu05', REPEAT('v', 512)), +('uuu06', REPEAT('v', 512)), +('uuu07', REPEAT('v', 512)), +('uuu08', REPEAT('v', 512)), +('xxx', REPEAT('v', 512)); +SET STATEMENT use_stat_tables=never FOR +ANALYZE TABLE records_in_range_test; +Table Op Msg_type Msg_text +test.records_in_range_test analyze status OK +SELECT index_name, stat_name, stat_value +FROM mysql.innodb_index_stats +WHERE +table_name='records_in_range_test' AND stat_name = 'n_leaf_pages'; +index_name stat_name stat_value +PRIMARY n_leaf_pages 1 +SELECT index_name, stat_name, stat_value +FROM mysql.innodb_index_stats +WHERE +table_name='records_in_range_test' AND stat_name = 'size'; +index_name stat_name stat_value +PRIMARY size 1 +SET @save_dbug = @@debug_dbug; +SET DEBUG_DBUG='+d,print_btr_estimate_n_rows_in_range_return_value'; + +In all SELECTs below the number of the records in the range returned +by COUNT(*) must be the same as the number returned by +btr_estimate_n_rows_in_range() which can be seen inside the artificial +warning + +Test left-unbounded, right-open intervals + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 < 'aaa'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 < 'ccc'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 < 'eee'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 < 'mmm'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 < 'nnn'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 < 'qqq'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 < 'xxx'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 < 'zzz'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 + +Test left-unbounded, right-closed intervals + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 <= 'aaa'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 <= 'ccc'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 <= 'eee'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 <= 'mmm'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 <= 'nnn'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 <= 'qqq'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 <= 'xxx'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 <= 'zzz'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 + +Test left-open, right-unbounded intervals + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 + +Test left-closed, right-unbounded intervals + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 + +Test left-open, right-open intervals +In some cases here the optimizer is smart enough not to call +ha_innobase::records_in_range() at all, so we get no warning containing +the value returned from btr_estimate_n_rows_in_range() + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 < 'bbb'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 < 'ccc'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 < 'eee'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 < 'mmm'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 < 'nnn'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 < 'qqq'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 < 'xxx'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 < 'zzz'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 < 'eee'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 < 'mmm'; +COUNT(*) +8 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 8 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 < 'nnn'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 < 'qqq'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 < 'xxx'; +COUNT(*) +18 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 18 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 < 'zzz'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 < 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 < 'mmm'; +COUNT(*) +8 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 8 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 < 'nnn'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 < 'qqq'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 < 'xxx'; +COUNT(*) +18 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 18 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 < 'zzz'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 < 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 < 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 < 'nnn'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 < 'qqq'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 < 'xxx'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 < 'zzz'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 < 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 < 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 < 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 < 'qqq'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 < 'xxx'; +COUNT(*) +8 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 8 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 < 'zzz'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 < 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 < 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 < 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 < 'qqq'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 < 'xxx'; +COUNT(*) +8 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 8 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 < 'zzz'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 < 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 < 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 < 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 < 'qqq'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 < 'xxx'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 < 'zzz'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 < 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 < 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 < 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 < 'qqq'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 < 'xxx'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 < 'zzz'; +COUNT(*) +0 + +Test left-closed, right-open intervals +In some cases here the optimizer is smart enough not to call +ha_innobase::records_in_range() at all, so we get no warning containing +the value returned from btr_estimate_n_rows_in_range() + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 < 'bbb'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 < 'ccc'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 < 'eee'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 < 'mmm'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 < 'nnn'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 < 'qqq'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 < 'xxx'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 < 'zzz'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 < 'eee'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 < 'mmm'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 < 'nnn'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 < 'qqq'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 < 'xxx'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 < 'zzz'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 < 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 < 'mmm'; +COUNT(*) +8 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 8 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 < 'nnn'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 < 'qqq'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 < 'xxx'; +COUNT(*) +18 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 18 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 < 'zzz'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 < 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 < 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 < 'nnn'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 < 'qqq'; +COUNT(*) +2 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 2 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 < 'xxx'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 < 'zzz'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 < 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 < 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 < 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 < 'qqq'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 < 'xxx'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 < 'zzz'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 < 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 < 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 < 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 < 'qqq'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 < 'xxx'; +COUNT(*) +8 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 8 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 < 'zzz'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 < 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 < 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 < 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 < 'qqq'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 < 'xxx'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 < 'zzz'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 < 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 < 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 < 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 < 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 < 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 < 'qqq'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 < 'xxx'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 < 'zzz'; +COUNT(*) +0 + +Test left-open, right-closed intervals +In some cases here the optimizer is smart enough not to call +ha_innobase::records_in_range() at all, so we get no warning containing +the value returned from btr_estimate_n_rows_in_range() + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 <= 'bbb'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 <= 'ccc'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 <= 'eee'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 <= 'mmm'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 <= 'nnn'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 <= 'qqq'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 <= 'xxx'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'aaa' AND c1 <= 'zzz'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 <= 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 <= 'eee'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 <= 'mmm'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 <= 'nnn'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 <= 'qqq'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 <= 'xxx'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'ccc' AND c1 <= 'zzz'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 <= 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 <= 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 <= 'mmm'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 <= 'nnn'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 <= 'qqq'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 <= 'xxx'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'eee' AND c1 <= 'zzz'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 <= 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 <= 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 <= 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 <= 'nnn'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 <= 'qqq'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 <= 'xxx'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'mmm' AND c1 <= 'zzz'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 <= 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 <= 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 <= 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 <= 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 <= 'qqq'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 <= 'xxx'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'nnn' AND c1 <= 'zzz'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 <= 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 <= 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 <= 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 <= 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 <= 'qqq'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 <= 'xxx'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'qqq' AND c1 <= 'zzz'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 <= 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 <= 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 <= 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 <= 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 <= 'qqq'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 <= 'xxx'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'xxx' AND c1 <= 'zzz'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 <= 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 <= 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 <= 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 <= 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 <= 'qqq'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 <= 'xxx'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 > 'zzz' AND c1 <= 'zzz'; +COUNT(*) +0 + +Test left-closed, right-closed intervals +In some cases here the optimizer is smart enough not to call +ha_innobase::records_in_range() at all, so we get no warning containing +the value returned from btr_estimate_n_rows_in_range() + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 <= 'bbb'; +COUNT(*) +0 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 <= 'ccc'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 <= 'eee'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 <= 'mmm'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 <= 'nnn'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 <= 'qqq'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 <= 'xxx'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'aaa' AND c1 <= 'zzz'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 <= 'ccc'; +COUNT(*) +1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 <= 'eee'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 <= 'mmm'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 <= 'nnn'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 <= 'qqq'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 <= 'xxx'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'ccc' AND c1 <= 'zzz'; +COUNT(*) +20 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 20 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 <= 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 <= 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 <= 'mmm'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 <= 'nnn'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 <= 'qqq'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 <= 'xxx'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'eee' AND c1 <= 'zzz'; +COUNT(*) +19 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 19 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 <= 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 <= 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 <= 'mmm'; +COUNT(*) +1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 <= 'nnn'; +COUNT(*) +2 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 2 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 <= 'qqq'; +COUNT(*) +2 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 2 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 <= 'xxx'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'mmm' AND c1 <= 'zzz'; +COUNT(*) +11 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 11 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 <= 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 <= 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 <= 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 <= 'nnn'; +COUNT(*) +1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 <= 'qqq'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 <= 'xxx'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'nnn' AND c1 <= 'zzz'; +COUNT(*) +10 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 10 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 <= 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 <= 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 <= 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 <= 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 <= 'qqq'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 <= 'xxx'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'qqq' AND c1 <= 'zzz'; +COUNT(*) +9 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 9 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 <= 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 <= 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 <= 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 <= 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 <= 'qqq'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 <= 'xxx'; +COUNT(*) +1 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'xxx' AND c1 <= 'zzz'; +COUNT(*) +1 +Warnings: +Warning 1230 btr_estimate_n_rows_in_range(): 1 + +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 <= 'bbb'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 <= 'ccc'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 <= 'eee'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 <= 'mmm'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 <= 'nnn'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 <= 'qqq'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 <= 'xxx'; +COUNT(*) +0 +SELECT COUNT(*) FROM records_in_range_test WHERE c1 >= 'zzz' AND c1 <= 'zzz'; +COUNT(*) +0 +SET DEBUG_DBUG = @save_dbug; +DROP TABLE records_in_range_test; |