diff options
Diffstat (limited to 'sql/sql_show.cc')
| -rw-r--r-- | sql/sql_show.cc | 85 |
1 files changed, 58 insertions, 27 deletions
diff --git a/sql/sql_show.cc b/sql/sql_show.cc index af06acf4854..31fb2f6a654 100644 --- a/sql/sql_show.cc +++ b/sql/sql_show.cc @@ -3597,6 +3597,29 @@ void remove_status_vars(SHOW_VAR *list) } } +/** + A union holding a pointer to a type that can be referred by a status variable. + */ +union Any_pointer { + const void *as_void; + const uchar *as_uchar; + const char *as_char; + const char ** as_charptr; + const double *as_double; + const int * as_int; + const uint * as_uint; + const long *as_long; + const longlong *as_longlong; + const bool *as_bool; + const my_bool *as_my_bool; + const sys_var *as_sys_var; + const system_status_var *as_system_status_var; + const ha_rows *as_ha_rows; + const LEX_STRING *as_lex_cstring; + const SHOW_COMP_OPTION *as_show_comp_options; + intptr as_intptr; + Atomic_counter<uint32_t>* as_atomic_counter; +}; /** @brief Returns the value of a system or a status variable. @@ -3621,16 +3644,18 @@ const char* get_one_variable(THD *thd, const CHARSET_INFO **charset, char *buff, size_t *length) { - void *value= variable->value; + Any_pointer value, status_var_value; + value.as_void= variable->value; + status_var_value.as_system_status_var= status_var; const char *pos= buff; const char *end= buff; if (show_type == SHOW_SYS) { - sys_var *var= (sys_var *) value; + const sys_var *var= value.as_sys_var; show_type= var->show_type(); - value= var->value_ptr(thd, value_type, &null_clex_str); + value.as_uchar= var->value_ptr(thd, value_type, &null_clex_str); *charset= var->charset(thd); } @@ -3640,66 +3665,65 @@ const char* get_one_variable(THD *thd, */ switch (show_type) { case SHOW_DOUBLE_STATUS: - value= ((char *) status_var + (intptr) value); + value.as_char= status_var_value.as_char + value.as_intptr; /* fall through */ case SHOW_DOUBLE: /* 6 is the default precision for '%f' in sprintf() */ - end= buff + my_fcvt(*(double *) value, 6, buff, NULL); + end= buff + my_fcvt(*value.as_double, 6, buff, NULL); break; case SHOW_LONG_STATUS: - value= ((char *) status_var + (intptr) value); + value.as_char= status_var_value.as_char + value.as_intptr; /* fall through */ case SHOW_ULONG: case SHOW_LONG_NOFLUSH: // the difference lies in refresh_status() - end= int10_to_str(*(long*) value, buff, 10); + end= int10_to_str(*value.as_long, buff, 10); break; case SHOW_LONGLONG_STATUS: - value= ((char *) status_var + (intptr) value); + value.as_char= status_var_value.as_char + value.as_intptr; /* fall through */ case SHOW_ULONGLONG: - end= longlong10_to_str(*(longlong*) value, buff, 10); + end= longlong10_to_str(*value.as_longlong, buff, 10); break; case SHOW_HA_ROWS: - end= longlong10_to_str((longlong) *(ha_rows*) value, buff, 10); + end= longlong10_to_str((longlong) *value.as_ha_rows, buff, 10); break; case SHOW_BOOL: - end= strmov(buff, *(bool*) value ? "ON" : "OFF"); + end= strmov(buff, *value.as_bool ? "ON" : "OFF"); break; case SHOW_MY_BOOL: - end= strmov(buff, *(my_bool*) value ? "ON" : "OFF"); + end= strmov(buff, *value.as_my_bool ? "ON" : "OFF"); break; case SHOW_UINT32_STATUS: - value= ((char *) status_var + (intptr) value); + value.as_char= status_var_value.as_char + value.as_intptr; /* fall through */ case SHOW_UINT: - end= int10_to_str((long) *(uint*) value, buff, 10); + end= int10_to_str((long) *value.as_uint, buff, 10); break; case SHOW_SINT: - end= int10_to_str((long) *(int*) value, buff, -10); + end= int10_to_str((long) *value.as_int, buff, -10); break; case SHOW_SLONG: - end= int10_to_str(*(long*) value, buff, -10); + end= int10_to_str(*value.as_long, buff, -10); break; case SHOW_SLONGLONG: - end= longlong10_to_str(*(longlong*) value, buff, -10); + end= longlong10_to_str(*value.as_longlong, buff, -10); break; case SHOW_HAVE: { - SHOW_COMP_OPTION tmp= *(SHOW_COMP_OPTION*) value; - pos= show_comp_option_name[(int) tmp]; + pos= show_comp_option_name[(int) *value.as_show_comp_options]; end= strend(pos); break; } case SHOW_CHAR: { - if (!(pos= (char*)value)) + if (!(pos= value.as_char)) pos= ""; end= strend(pos); break; } case SHOW_CHAR_PTR: { - if (!(pos= *(char**) value)) + if (!(pos= *value.as_charptr)) pos= ""; end= strend(pos); @@ -3707,17 +3731,14 @@ const char* get_one_variable(THD *thd, } case SHOW_LEX_STRING: { - LEX_STRING *ls=(LEX_STRING*)value; - if (!(pos= ls->str)) + if (!(pos= value.as_lex_cstring->str)) end= pos= ""; else - end= pos + ls->length; + end= pos + value.as_lex_cstring->length; break; } case SHOW_ATOMIC_COUNTER_UINT32_T: - end= int10_to_str( - static_cast<long>(*static_cast<Atomic_counter<uint32_t>*>(value)), - buff, 10); + end= int10_to_str(static_cast<long>(*value.as_atomic_counter), buff, 10); break; case SHOW_UNDEF: break; // Return empty string @@ -6713,6 +6734,16 @@ static int get_schema_stat_record(THD *thd, TABLE_LIST *tables, LEX_CSTRING unknown= {STRING_WITH_LEN("?unknown field?") }; for (uint j=0 ; j < key_info->user_defined_key_parts ; j++,key_part++) { + if (key_part->field->invisible >= INVISIBLE_SYSTEM && + DBUG_EVALUATE_IF("test_completely_invisible", 0, 1)) + { + /* + NOTE: we will get SEQ_IN_INDEX gap inside the result if this key_part + is not last (currently not possible). Though nothing is wrong with + that probably. + */ + continue; + } restore_record(table, s->default_values); table->field[0]->store(STRING_WITH_LEN("def"), cs); table->field[1]->store(db_name->str, db_name->length, cs); |