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MDEV-18582: Extend SHOW STATUS LIKE 'Innodb_%'

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Many InnoDB internal variables and counters were only exposed
in an unstructured fashion via SHOW ENGINE INNODB STATUS.

Expose more variables via SHOW STATUS. Many of these were
exported in XtraDB.

Also, introduce SHOW_SIZE_T and use the proper size for
exporting the InnoDB variables.

Remove some unnecessary indirection via export_vars, and
bind some variables directly.

dict_sys_t::rough_size(): Replaces dict_sys_get_size()
and includes the hash table sizes.

This is based on a contribution by Tony Liu from ServiceNow.
This commit is contained in:
Marko Mäkelä
2019-07-03 17:31:20 +03:00
parent 61e26289fc
commit 412533b4a7
16 changed files with 298 additions and 240 deletions
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6
sql/sql_show.cc
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@ -3629,12 +3629,18 @@ const char* get_one_variable(THD *thd,
/* fall through */
case SHOW_ULONG:
case SHOW_LONG_NOFLUSH: // the difference lies in refresh_status()
#ifndef _WIN64
case SHOW_SIZE_T:
#endif
end= int10_to_str(*(long*) value, buff, 10);
break;
case SHOW_LONGLONG_STATUS:
value= ((char *) status_var + (intptr) value);
/* fall through */
case SHOW_ULONGLONG:
#ifdef _WIN64
case SHOW_SIZE_T:
#endif
end= longlong10_to_str(*(longlong*) value, buff, 10);
break;
case SHOW_HA_ROWS: