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MDEV-38814 Reduce pessimistic update fallbacks #4909

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MDEV-38814 Reduce pessimistic update fallbacks #4909

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242 changes: 242 additions & 0 deletions mysql-test/suite/innodb/r/index_lock_upgrade,on.rdiff
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Original file line number Diff line number Diff line change
@@ -0,0 +1,242 @@
--- index_lock_upgrade.result
+++ index_lock_upgrade,on.reject
@@ -52,27 +52,27 @@
CALL show_index_stats(CONCAT('t1', '_update_null_to_notnull'));

n_index_lock_upgrades_t1_update_null_to_notnull
-414
+6
pessimistic_insert_calls_t1_update_null_to_notnull
-5
+6
pessimistic_delete_calls_t1_update_null_to_notnull
0
pessimistic_update_calls_t1_update_null_to_notnull
-414
+6
pessimistic_update_optim_err_underflows_t1_update_null_to_notnull
-300
+0
pessimistic_update_optim_err_overflows_t1_update_null_to_notnull
-114
+6
index_x_lock_calls_t1_update_null_to_notnull
0
index_page_splits_t1_update_null_to_notnull
-5
+6
index_page_merge_attempts_t1_update_null_to_notnull
-300
+0
index_page_merge_successful_t1_update_null_to_notnull
0
index_page_reorg_successful_t1_update_null_to_notnull
-98
+40
index_page_discards_t1_update_null_to_notnull
0
# Update all rows: 2025 to 2026 (inplace update)
@@ -110,27 +110,27 @@
CALL show_index_stats(CONCAT('t1', '_update_notnull_to_null'));

n_index_lock_upgrades_t1_update_notnull_to_null
-380
+422
pessimistic_insert_calls_t1_update_notnull_to_null
0
pessimistic_delete_calls_t1_update_notnull_to_null
-5
+6
pessimistic_update_calls_t1_update_notnull_to_null
-380
+422
pessimistic_update_optim_err_underflows_t1_update_notnull_to_null
-311
+342
pessimistic_update_optim_err_overflows_t1_update_notnull_to_null
-69
+80
index_x_lock_calls_t1_update_notnull_to_null
0
index_page_splits_t1_update_notnull_to_null
0
index_page_merge_attempts_t1_update_notnull_to_null
-311
+342
index_page_merge_successful_t1_update_notnull_to_null
-5
+6
index_page_reorg_successful_t1_update_notnull_to_null
-5
+6
index_page_discards_t1_update_notnull_to_null
0
# Delete upper half of rows
@@ -143,11 +143,11 @@
CALL show_index_stats(CONCAT('t1', '_delete_upper_half'));

n_index_lock_upgrades_t1_delete_upper_half
-183
+186
pessimistic_insert_calls_t1_delete_upper_half
0
pessimistic_delete_calls_t1_delete_upper_half
-186
+189
pessimistic_update_calls_t1_delete_upper_half
0
pessimistic_update_optim_err_underflows_t1_delete_upper_half
@@ -159,7 +159,7 @@
index_page_splits_t1_delete_upper_half
0
index_page_merge_attempts_t1_delete_upper_half
-183
+186
index_page_merge_successful_t1_delete_upper_half
3
index_page_reorg_successful_t1_delete_upper_half
@@ -283,27 +283,27 @@
CALL show_index_stats(CONCAT('t2', '_update_null_to_notnull'));

n_index_lock_upgrades_t2_update_null_to_notnull
-1016
+608
pessimistic_insert_calls_t2_update_null_to_notnull
-9
+10
pessimistic_delete_calls_t2_update_null_to_notnull
601
pessimistic_update_calls_t2_update_null_to_notnull
-414
+6
pessimistic_update_optim_err_underflows_t2_update_null_to_notnull
-300
+0
pessimistic_update_optim_err_overflows_t2_update_null_to_notnull
-114
+6
index_x_lock_calls_t2_update_null_to_notnull
0
index_page_splits_t2_update_null_to_notnull
-9
+10
index_page_merge_attempts_t2_update_null_to_notnull
-895
+595
index_page_merge_successful_t2_update_null_to_notnull
0
index_page_reorg_successful_t2_update_null_to_notnull
-98
+40
index_page_discards_t2_update_null_to_notnull
3
# Update all rows: 2025 to 2026 (inplace update)
@@ -341,27 +341,27 @@
CALL show_index_stats(CONCAT('t2', '_update_notnull_to_null'));

n_index_lock_upgrades_t2_update_notnull_to_null
-583
+625
pessimistic_insert_calls_t2_update_notnull_to_null
3
pessimistic_delete_calls_t2_update_notnull_to_null
-209
+210
pessimistic_update_calls_t2_update_notnull_to_null
-380
+422
pessimistic_update_optim_err_underflows_t2_update_notnull_to_null
-311
+342
pessimistic_update_optim_err_overflows_t2_update_notnull_to_null
-69
+80
index_x_lock_calls_t2_update_notnull_to_null
0
index_page_splits_t2_update_notnull_to_null
3
index_page_merge_attempts_t2_update_notnull_to_null
-511
+542
index_page_merge_successful_t2_update_notnull_to_null
-9
-index_page_reorg_successful_t2_update_notnull_to_null
10
+index_page_reorg_successful_t2_update_notnull_to_null
+11
index_page_discards_t2_update_notnull_to_null
0
# Delete upper half of rows
@@ -374,11 +374,11 @@
CALL show_index_stats(CONCAT('t2', '_delete_upper_half'));

n_index_lock_upgrades_t2_delete_upper_half
-340
+343
pessimistic_insert_calls_t2_delete_upper_half
0
pessimistic_delete_calls_t2_delete_upper_half
-344
+347
pessimistic_update_calls_t2_delete_upper_half
0
pessimistic_update_optim_err_underflows_t2_delete_upper_half
@@ -390,7 +390,7 @@
index_page_splits_t2_delete_upper_half
0
index_page_merge_attempts_t2_delete_upper_half
-340
+343
index_page_merge_successful_t2_delete_upper_half
4
index_page_reorg_successful_t2_delete_upper_half
@@ -514,15 +514,15 @@
CALL show_index_stats(CONCAT('t3', '_update_null_to_notnull'));

n_index_lock_upgrades_t3_update_null_to_notnull
-1602
+610
pessimistic_insert_calls_t3_update_null_to_notnull
12
pessimistic_delete_calls_t3_update_null_to_notnull
-602
+601
pessimistic_update_calls_t3_update_null_to_notnull
-1000
+8
pessimistic_update_optim_err_underflows_t3_update_null_to_notnull
-992
+0
pessimistic_update_optim_err_overflows_t3_update_null_to_notnull
0
index_x_lock_calls_t3_update_null_to_notnull
@@ -530,9 +530,9 @@
index_page_splits_t3_update_null_to_notnull
12
index_page_merge_attempts_t3_update_null_to_notnull
-1587
+595
index_page_merge_successful_t3_update_null_to_notnull
-1
+0
index_page_reorg_successful_t3_update_null_to_notnull
0
index_page_discards_t3_update_null_to_notnull
@@ -576,7 +576,7 @@
pessimistic_insert_calls_t3_update_notnull_to_null
3
pessimistic_delete_calls_t3_update_notnull_to_null
-212
+213
pessimistic_update_calls_t3_update_notnull_to_null
1000
pessimistic_update_optim_err_underflows_t3_update_notnull_to_null
@@ -590,7 +590,7 @@
index_page_merge_attempts_t3_update_notnull_to_null
1200
index_page_merge_successful_t3_update_notnull_to_null
-12
+13
index_page_reorg_successful_t3_update_notnull_to_null
0
index_page_discards_t3_update_notnull_to_null
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