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| author | Monty <monty@mariadb.org> | 2021-10-08 01:40:59 +0300 |
|---|---|---|
| committer | Sergei Petrunia <sergey@mariadb.com> | 2023-02-02 20:24:54 +0300 |
| commit | bc9805e95432325b8d3d812e7cc4f6e1380d2345 (patch) | |
| tree | 2a5d20ab69abb25fd03ab0f5607bddbe6c990e3d /mysql-test/main/join_nested_jcl6.result | |
| parent | b67144893a3ddf96ace15d21ed1bd572e19a33e0 (diff) | |
| download | mariadb-git-bc9805e95432325b8d3d812e7cc4f6e1380d2345.tar.gz | |
Return >= 1 from matching_candidates_in_table if records > 0.0
Having rows >= 1.0 helps ensure that when we calculate total rows of joins
the number of resulting rows will not be less after the join.
Changes in test cases:
- Join order change for some tables with few records
- 'Filtered' is much higher for tables with few rows, as 1 row is a high
procent of a table with few rows.
Diffstat (limited to 'mysql-test/main/join_nested_jcl6.result')
| -rw-r--r-- | mysql-test/main/join_nested_jcl6.result | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/mysql-test/main/join_nested_jcl6.result b/mysql-test/main/join_nested_jcl6.result index 0a5560bc849..57bd6298b3b 100644 --- a/mysql-test/main/join_nested_jcl6.result +++ b/mysql-test/main/join_nested_jcl6.result @@ -2120,9 +2120,9 @@ FROM t5 LEFT JOIN ON (t5.b=t8.b); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t5 ALL NULL NULL NULL NULL 2 -1 SIMPLE t8 ALL b_i NULL NULL NULL 1 Using where; Using join buffer (flat, BNL join) -1 SIMPLE t6 ALL NULL NULL NULL NULL 1 Using join buffer (incremental, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join) 1 SIMPLE t7 const PRIMARY PRIMARY 4 const 1 Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan +1 SIMPLE t8 ALL b_i NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join) SELECT t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b FROM t5 LEFT JOIN (t6 LEFT JOIN t7 ON t7.a=1, t8) @@ -2137,9 +2137,9 @@ FROM t5 LEFT JOIN ON (t5.b=t8.b); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t5 ALL NULL NULL NULL NULL 2 -1 SIMPLE t8 ALL b_i NULL NULL NULL 1 Using where; Using join buffer (flat, BNL join) -1 SIMPLE t6 ALL NULL NULL NULL NULL 1 Using join buffer (incremental, BNL join) +1 SIMPLE t6 ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join) 1 SIMPLE t7 ref b_i b_i 5 const 1 Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan +1 SIMPLE t8 ALL b_i NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join) SELECT t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b FROM t5 LEFT JOIN (t6 LEFT JOIN t7 ON t7.b=2, t8) |