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  • Committer: Brian Aker
  • Date: 2009-08-15 00:59:30 UTC
  • mfrom: (1115.1.7 merge)
  • Revision ID: brian@gaz-20090815005930-q47yenjrq1esiwsz
Merge of Trond + Brian

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drizzled/set_var.cc
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  @todo
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    Add full support for the variable character_set (for 4.1)
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  @todo
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    When updating myisam_delay_key_write, we should do a 'flush tables'
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    of all MyISAM tables to ensure that they are reopen with the
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    new attribute.
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  @note
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    Be careful with var->save_result: sys_var::check() only updates
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    uint64_t_value; so other members of the union are garbage then; to use
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  array_elements(bool_type_names)-1, "", bool_type_names, NULL
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};
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const char *delay_key_write_type_names[]= { "OFF", "ON", "ALL", NULL };
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TYPELIB delay_key_write_typelib=
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{
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  array_elements(delay_key_write_type_names)-1, "",
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  delay_key_write_type_names, NULL
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};
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static bool set_option_bit(Session *session, set_var *var);
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static bool set_option_autocommit(Session *session, set_var *var);
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static int  check_pseudo_thread_id(Session *session, set_var *var);
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static sys_var_collation_sv
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sys_collation_server(&vars, "collation_server", &SV::collation_server, &default_charset_info);
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static sys_var_const_str       sys_datadir(&vars, "datadir", drizzle_real_data_home);
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static sys_var_enum             sys_delay_key_write(&vars, "delay_key_write",
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                                            &delay_key_write_options,
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                                            &delay_key_write_typelib,
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                                            fix_delay_key_write);
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static sys_var_bool_ptr sys_flush(&vars, "flush", &myisam_flush);
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static sys_var_session_uint64_t sys_join_buffer_size(&vars, "join_buffer_size",
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                                                     &SV::join_buff_size);
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static sys_var_key_buffer_size  sys_key_buffer_size(&vars, "key_buffer_size");
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static sys_var_session_uint64_t sys_min_examined_row_limit(&vars, "min_examined_row_limit",
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                                                           &SV::min_examined_row_limit);
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static sys_var_session_enum         sys_myisam_stats_method(&vars, "myisam_stats_method",
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                                                            &SV::myisam_stats_method,
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                                                            &myisam_stats_method_typelib,
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                                                            NULL);
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static sys_var_session_uint32_t sys_net_buffer_length(&vars, "net_buffer_length",
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                                                      &SV::net_buffer_length);
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/* these two cannot be static */
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}
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extern void fix_delay_key_write(Session *, enum_var_type)
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{
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  switch ((enum_delay_key_write) delay_key_write_options) {
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  case DELAY_KEY_WRITE_NONE:
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    myisam_delay_key_write=0;
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    break;
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  case DELAY_KEY_WRITE_ON:
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    myisam_delay_key_write=1;
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    break;
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  case DELAY_KEY_WRITE_ALL:
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    myisam_delay_key_write=1;
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    ha_open_options|= HA_OPEN_DELAY_KEY_WRITE;
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    break;
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  }
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}
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static void fix_session_mem_root(Session *session, enum_var_type type)
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{
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  if (type != OPT_GLOBAL)