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Don't count NULL values in cardinalty for MyISAM tables.

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Free row buffer cache after each query for MyISAM tables.
Added table join option FORCE INDEX
Fixed core dump bug when connecting with hostname that could not be resolved.
This commit is contained in:
monty@mashka.mysql.fi
2003-01-09 02:19:14 +02:00
parent 23c13c4539
commit 3c08da957e
17 changed files with 207 additions and 52 deletions
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sql/table.h
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@ -91,6 +91,7 @@ struct st_table {
my_bool copy_blobs; /* copy_blobs when storing */
my_bool null_row; /* All columns are null */
my_bool maybe_null,outer_join; /* Used with OUTER JOIN */
my_bool force_index;
my_bool distinct,const_table,no_rows;
my_bool key_read, bulk_insert;
my_bool crypted;
@ -157,6 +158,7 @@ typedef struct st_table_list
bool straight; /* optimize with prev table */
bool updating; /* for replicate-do/ignore table */
bool do_redirect; /* To get the struct in UNION's */
bool force_index; /* Prefer index over table scan */
} TABLE_LIST;