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MDEV-32475 Add logging of test_if_skip_sort_order to optimizer trace

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This commit is contained in:
Oleg Smirnov
2023-10-18 16:27:56 +07:00
parent 680f732fb8
commit 68542caea1
2 changed files with 165 additions and 134 deletions
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25
mysql-test/main/opt_trace.result
View File

@ -468,6 +468,9 @@ select * from v2 {
}
]
}
},
{
"test_if_skip_sort_order": []
}
]
}
@ -796,6 +799,9 @@ explain select * from v1 {
}
]
}
},
{
"test_if_skip_sort_order": []
}
]
}
@ -1290,6 +1296,9 @@ EXPLAIN SELECT DISTINCT a FROM t1 {
}
]
}
},
{
"test_if_skip_sort_order": []
}
]
}
@ -1484,6 +1493,8 @@ EXPLAIN SELECT MIN(d) FROM t1 where b=2 and c=3 group by a {
]
}
},
{
"test_if_skip_sort_order": [
{
"reconsidering_access_paths_for_index_ordering": {
"clause": "GROUP BY",
@ -1505,6 +1516,8 @@ EXPLAIN SELECT MIN(d) FROM t1 where b=2 and c=3 group by a {
}
]
}
]
}
},
{
"join_execution": {
@ -1686,6 +1699,8 @@ EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>=20010104e0 GROUP BY id {
]
}
},
{
"test_if_skip_sort_order": [
{
"reconsidering_access_paths_for_index_ordering": {
"clause": "GROUP BY",
@ -1707,6 +1722,8 @@ EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>=20010104e0 GROUP BY id {
}
]
}
]
}
},
{
"join_execution": {
@ -1877,6 +1894,8 @@ EXPLAIN SELECT * FROM t1 WHERE a = 20010104e0 GROUP BY id {
]
}
},
{
"test_if_skip_sort_order": [
{
"reconsidering_access_paths_for_index_ordering": {
"clause": "GROUP BY",
@ -1898,6 +1917,8 @@ EXPLAIN SELECT * FROM t1 WHERE a = 20010104e0 GROUP BY id {
}
]
}
]
}
},
{
"join_execution": {
@ -2175,6 +2196,8 @@ explain select * from t1 where a=1 and b=2 order by c limit 1 {
]
}
},
{
"test_if_skip_sort_order": [
{
"reconsidering_access_paths_for_index_ordering": {
"clause": "ORDER BY",
@ -2270,6 +2293,8 @@ explain select * from t1 where a=1 and b=2 order by c limit 1 {
}
]
}
]
}
},
{
"join_execution": {

6
sql/sql_select.cc
View File

@ -23608,8 +23608,12 @@ test_if_skip_sort_order(JOIN_TAB *tab,ORDER *order,ha_rows select_limit,
bool orig_cond_saved= false;
int best_key= -1;
bool changed_key= false;
THD *thd= tab->join->thd;
DBUG_ENTER("test_if_skip_sort_order");
Json_writer_object trace_wrapper(thd);
Json_writer_array trace_arr(thd, "test_if_skip_sort_order");
/* Check that we are always called with first non-const table */
DBUG_ASSERT(tab == tab->join->join_tab + tab->join->const_tables);
@ -23618,6 +23622,8 @@ test_if_skip_sort_order(JOIN_TAB *tab,ORDER *order,ha_rows select_limit,
tab->type == JT_CONST ||
tab->type == JT_SYSTEM)
{
Json_writer_object trace_skip(thd);
trace_skip.add("skipped", "single row access method");
DBUG_RETURN(1);
}