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Bug#57609 performance_schema does not work with lower_case_table_names
Before this fix, the performance schema tables were defined in UPPERCASE. This was incompatible with the lowercase_table_names option, and caused issues with the install / upgrade process, when changing the lower case table names setting *after* the install or upgrade. With this fix, all performance schema tables are exposed with lowercase names. As a result, the name of the performance schema table is always lowercase, no matter how / if / when the lowercase_table_names setting if changed.
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@ -1,9 +1,9 @@
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update performance_schema.SETUP_INSTRUMENTS set enabled='NO';
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update performance_schema.SETUP_INSTRUMENTS set enabled='YES'
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update performance_schema.setup_instruments set enabled='NO';
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update performance_schema.setup_instruments set enabled='YES'
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where name like "wait/io/file/myisam/%";
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update performance_schema.SETUP_CONSUMERS
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update performance_schema.setup_consumers
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set enabled='YES';
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truncate table performance_schema.EVENTS_WAITS_HISTORY_LONG;
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truncate table performance_schema.events_waits_history_long;
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flush status;
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drop table if exists test.no_index_tab;
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create table test.no_index_tab ( a varchar(255), b int ) engine=myisam;
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@ -14,7 +14,7 @@ select event_name,
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left(source, locate(":", source)) as short_source,
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operation, number_of_bytes,
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substring(object_name, locate("no_index_tab", object_name)) as short_name
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from performance_schema.EVENTS_WAITS_HISTORY_LONG
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from performance_schema.events_waits_history_long
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where operation not like "tell"
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order by thread_id, event_id;
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event_name short_source operation number_of_bytes short_name
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@ -56,5 +56,5 @@ Performance_schema_table_handles_lost 0
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Performance_schema_table_instances_lost 0
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Performance_schema_thread_classes_lost 0
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Performance_schema_thread_instances_lost 0
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update performance_schema.SETUP_INSTRUMENTS set enabled='YES';
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update performance_schema.setup_instruments set enabled='YES';
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drop table test.no_index_tab;
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