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MDEV-28540 Deprecate and ignore the parameter innodb_prefix_index_cluster_optimization

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The parameter innodb_prefix_index_cluster_optimization used to enable an
optimization that was added in cb37c55768
and was disabled by default.

We will unconditionally enable the extension and mark the parameter
as deprecated.

Related to this, the counters
Innodb_secondary_index_triggered_cluster_reads and
Innodb_secondary_index_triggered_cluster_reads_avoided
allowed to determine the usefulness of this optimization.

Now that the configuration parameter is disabled, the counters
do not serve any useful purpose and can be removed.

row_search_with_covering_prefix(): Fix a bug that caused an
incorrect result to be returned.
This commit is contained in:
Marko Mäkelä
2022-05-13 18:07:39 +03:00
parent 0dab74ff3f
commit fdc039db29
15 changed files with 11 additions and 1024 deletions
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2
mysql-test/suite/innodb/r/innodb_status_variables.result
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@@ -98,8 +98,6 @@ INNODB_INSTANT_ALTER_COLUMN
INNODB_ONLINEDDL_ROWLOG_ROWS
INNODB_ONLINEDDL_ROWLOG_PCT_USED
INNODB_ONLINEDDL_PCT_PROGRESS
INNODB_SECONDARY_INDEX_TRIGGERED_CLUSTER_READS
INNODB_SECONDARY_INDEX_TRIGGERED_CLUSTER_READS_AVOIDED
INNODB_ENCRYPTION_ROTATION_PAGES_READ_FROM_CACHE
INNODB_ENCRYPTION_ROTATION_PAGES_READ_FROM_DISK
INNODB_ENCRYPTION_ROTATION_PAGES_MODIFIED