This test case was failing on 5.5 and trunk for two reasons.
1) It waited for the "Waiting for table level lock" process
state while this state was renamed "Waiting for table
metadata lock" with the introduction of MDL in 5.5.
2) SET GLOBAL query_cache_size= 100000; gave a warning since
query_cache_size is supposed to be multiples of 1024.
This patch fixes these two issues and re-enables the test case.
- disable the test suffering from Bug#41098 Query Cache returns wrong result with
concurrent insert
- additional improvements
Details:
- Move the test for the historic bug
Bug 28249 Query Cache returns wrong result with concurrent insert / certain lock
into its own testscript query_cache_28249.test.
- query_cache.test:
- replace error numbers with error names
- remove trailing spaces, replace tabs with spaces
- reset of @@global.log_bin_trust_function_creators to its original value
at the end of the test
- query_cache_28249.test:
- replace sleep 5 with poll routine
- avoid random differences caused by concurrent_inserts effects
- improved comments and formatting
