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Additional storage engine called "blackhole". Customer request, and for that matter a Zawodny request. With this you can alter table to a type of table that would never store data. Its a /dev/null for a database.

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This commit is contained in:
brian@zim.(none)
2005-03-22 16:10:39 -08:00
parent 75d705930d
commit cfcedd85cd
14 changed files with 1682 additions and 2 deletions
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9
sql/handler.cc
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@ -32,6 +32,9 @@
#ifdef HAVE_BERKELEY_DB
#include "ha_berkeley.h"
#endif
#ifdef HAVE_BLACKHOLE_DB
#include "ha_blackhole.h"
#endif
#ifdef HAVE_EXAMPLE_DB
#include "examples/ha_example.h"
#endif
@ -96,6 +99,8 @@ struct show_table_type_st sys_table_types[]=
"Archive storage engine", DB_TYPE_ARCHIVE_DB},
{"CSV",&have_csv_db,
"CSV storage engine", DB_TYPE_CSV_DB},
{"BLACKHOLE",&have_blackhole_db,
"Storage engine designed to act as null storage", DB_TYPE_BLACKHOLE_DB},
{NullS, NULL, NullS, DB_TYPE_UNKNOWN}
};
@ -204,6 +209,10 @@ handler *get_new_handler(TABLE *table, enum db_type db_type)
case DB_TYPE_ARCHIVE_DB:
return new ha_archive(table);
#endif
#ifdef HAVE_BLACKHOLE_DB
case DB_TYPE_BLACKHOLE_DB:
return new ha_blackhole(table);
#endif
#ifdef HAVE_CSV_DB
case DB_TYPE_CSV_DB:
return new ha_tina(table);