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WL#2269 Enable query cache for NDB

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- Added a thread that fetches commit_count for open tables. This
will mean that NDB will not have to be contacted for every use of a cached query.
This commit is contained in:
msvensson@neptunus.homeip.net
2005-02-01 15:43:08 +01:00
parent cb7524e103
commit efd5ed2f9e
8 changed files with 708 additions and 74 deletions
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3
sql/set_var.cc
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@@ -370,6 +370,7 @@ sys_var_thd_bool
sys_ndb_use_exact_count("ndb_use_exact_count", &SV::ndb_use_exact_count);
sys_var_thd_bool
sys_ndb_use_transactions("ndb_use_transactions", &SV::ndb_use_transactions);
sys_var_long_ptr sys_ndb_cache_check_time("ndb_cache_check_time", &ndb_cache_check_time);
#endif
/* Time/date/datetime formats */
@@ -630,6 +631,7 @@ sys_var *sys_variables[]=
&sys_ndb_force_send,
&sys_ndb_use_exact_count,
&sys_ndb_use_transactions,
&sys_ndb_cache_check_time,
#endif
&sys_unique_checks,
&sys_warning_count
@@ -797,6 +799,7 @@ struct show_var_st init_vars[]= {
{sys_ndb_force_send.name, (char*) &sys_ndb_force_send, SHOW_SYS},
{sys_ndb_use_exact_count.name,(char*) &sys_ndb_use_exact_count, SHOW_SYS},
{sys_ndb_use_transactions.name,(char*) &sys_ndb_use_transactions, SHOW_SYS},
{sys_ndb_cache_check_time.name,(char*) &sys_ndb_cache_check_time, SHOW_SYS},
#endif
{sys_net_buffer_length.name,(char*) &sys_net_buffer_length, SHOW_SYS},
{sys_net_read_timeout.name, (char*) &sys_net_read_timeout, SHOW_SYS},