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Many files:

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Small improvements
row0mysql.c:
  Small improvements + fix the ALTER TABLE problem by introducing a lazy drop table it can use
ha_innobase.cc:
  Some fine-tuning of optimization


sql/ha_innobase.cc:
  Some fine-tuning of optimization
innobase/include/log0recv.h:
  Small improvements
innobase/include/mem0mem.h:
  Small improvements
innobase/include/mem0pool.h:
  Small improvements
innobase/include/row0mysql.h:
  Small improvements
innobase/include/srv0srv.h:
  Small improvements
innobase/include/trx0trx.h:
  Small improvements
innobase/buf/buf0lru.c:
  Small improvements
innobase/fil/fil0fil.c:
  Small improvements
innobase/log/log0recv.c:
  Small improvements
innobase/mem/mem0mem.c:
  Small improvements
innobase/mem/mem0pool.c:
  Small improvements
innobase/row/row0mysql.c:
  Small improvements + fix the ALTER TABLE problem by introducing a lazy drop table it can use
innobase/srv/srv0srv.c:
  Small improvements
innobase/srv/srv0start.c:
  Small improvements
innobase/trx/trx0purge.c:
  Small improvements
innobase/trx/trx0trx.c:
  Small improvements
This commit is contained in:
unknown
2002-02-04 23:55:41 +02:00
parent 3518de828d
commit 9871a6d080
17 changed files with 610 additions and 123 deletions
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20
innobase/include/row0mysql.h
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@ -251,6 +251,24 @@ row_table_add_foreign_constraints(
char* name); /* in: table full name in the normalized form
database_name/table_name */
/*************************************************************************
The master thread in srv0srv.c calls this regularly to drop tables which
we must drop in background after queries to them have ended. Such lazy
dropping of tables is needed in ALTER TABLE on Unix. */
ulint
row_drop_tables_for_mysql_in_background(void);
/*=========================================*/
/* out: how many tables dropped
+ remaining tables in list */
/*************************************************************************
Get the background drop list length. NOTE: the caller must own the kernel
mutex! */
ulint
row_get_background_drop_list_len_low(void);
/*======================================*/
/* out: how many tables in list */
/*************************************************************************
Drops a table for MySQL. If the name of the dropped table ends to
characters INNODB_MONITOR, then this also stops printing of monitor
output by the master thread. */
@ -426,7 +444,7 @@ struct row_prebuilt_struct {
fetched row in fetch_cache */
ulint n_fetch_cached; /* number of not yet fetched rows
in fetch_cache */
mem_heap_t* blob_heap; /* in SELECTS BLOB fields are copied
mem_heap_t* blob_heap; /* in SELECTS BLOB fie lds are copied
to this heap */
mem_heap_t* old_vers_heap; /* memory heap where a previous
version is built in consistent read */