Re: how to check if keys disabled?
You can use the mysqlshow command to list all disabled keys: e.g.: mysqlshow -k world foo When the indexes are displayed the word "disabled" will be in the comment field -- Partha Dutta, Senior Consultant MySQL Inc, NY, USA, www.mysql.com Are you MySQL certified? www.mysql.com/certification Victor Pendleton wrote: > Try show index from t1; > Show index from t2; Hi Victor, Nope, this does not help. t1 has key disabled, t1 enabled, and the result is the same: mysql> show index from t1\G *** 1. row *** Table: t1 Non_unique: 0 Key_name: PRIMARY Seq_in_index: 1 Column_name: x Collation: A Cardinality: 0 Sub_part: NULL Packed: NULL Null: Index_type: BTREE Comment: 1 row in set (0.00 sec) mysql> show index from t2\G *** 1. row *** Table: t2 Non_unique: 0 Key_name: PRIMARY Seq_in_index: 1 Column_name: x Collation: A Cardinality: 0 Sub_part: NULL Packed: NULL Null: Index_type: BTREE Comment: 1 row in set (0.00 sec) cheers, Jacek > > -Original Message- > From: Jacek Becla [mailto:[EMAIL PROTECTED] > Sent: Tuesday, May 03, 2005 4:00 PM > To: Jay Blanchard > Cc: [EMAIL PROTECTED] > Subject: Re: how to check if keys disabled? > > Jay > > Are you sure? DESCRIBE tells me the table has an index, but not whether > the index is enabled or not: > > mysql> create table t1 (x int primary key); > Query OK, 0 rows affected (0.01 sec) > > mysql> create table t2 (x int primary key); > Query OK, 0 rows affected (0.01 sec) > > mysql> alter table t1 disable keys; > Query OK, 0 rows affected (0.00 sec) > > mysql> describe t1; > +---+-+--+-+-+---+ > | Field | Type| Null | Key | Default | Extra | > +---+-+--+-+-+---+ > | x | int(11) | NO | PRI | | | > +---+-+--+-+-+---+ > 1 row in set (0.00 sec) > > mysql> describe t2; > +---+-+--+-+-+---+ > | Field | Type| Null | Key | Default | Extra | > +---+-+--+-+-+---+ > | x | int(11) | NO | PRI | | | > +---+-+--+-+-+---+ > 1 row in set (0.00 sec) > > Am I missing something? > > thanks, > Jacek > > > Jay Blanchard wrote: > >>[snip] >>How can I find out if keys are enabled/disabled for a given table? >> >>Suppose I do: >>create table t1 (x int primary key); >>create table t2 (x int primary key); >>alter table t1 disable keys; >> >>How can I now find out that t1 has keys disabled, and t2 enabled? >>[/snip] >> >>DESCRIBE t1 or DESCRIBE t2 > > >
Re: how to check if keys disabled?
Victor Pendleton wrote: Try show index from t1; Show index from t2; Hi Victor, Nope, this does not help. t1 has key disabled, t1 enabled, and the result is the same: mysql> show index from t1\G *** 1. row *** Table: t1 Non_unique: 0 Key_name: PRIMARY Seq_in_index: 1 Column_name: x Collation: A Cardinality: 0 Sub_part: NULL Packed: NULL Null: Index_type: BTREE Comment: 1 row in set (0.00 sec) mysql> show index from t2\G *** 1. row *** Table: t2 Non_unique: 0 Key_name: PRIMARY Seq_in_index: 1 Column_name: x Collation: A Cardinality: 0 Sub_part: NULL Packed: NULL Null: Index_type: BTREE Comment: 1 row in set (0.00 sec) cheers, Jacek -Original Message- From: Jacek Becla [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 03, 2005 4:00 PM To: Jay Blanchard Cc: mysql@lists.mysql.com Subject: Re: how to check if keys disabled? Jay Are you sure? DESCRIBE tells me the table has an index, but not whether the index is enabled or not: mysql> create table t1 (x int primary key); Query OK, 0 rows affected (0.01 sec) mysql> create table t2 (x int primary key); Query OK, 0 rows affected (0.01 sec) mysql> alter table t1 disable keys; Query OK, 0 rows affected (0.00 sec) mysql> describe t1; +---+-+--+-+-+---+ | Field | Type| Null | Key | Default | Extra | +---+-+--+-+-+---+ | x | int(11) | NO | PRI | | | +---+-+--+-+-+---+ 1 row in set (0.00 sec) mysql> describe t2; +---+-+--+-+-+---+ | Field | Type| Null | Key | Default | Extra | +---+-+--+-+-+---+ | x | int(11) | NO | PRI | | | +---+-+--+-+-+---+ 1 row in set (0.00 sec) Am I missing something? thanks, Jacek Jay Blanchard wrote: [snip] How can I find out if keys are enabled/disabled for a given table? Suppose I do: create table t1 (x int primary key); create table t2 (x int primary key); alter table t1 disable keys; How can I now find out that t1 has keys disabled, and t2 enabled? [/snip] DESCRIBE t1 or DESCRIBE t2 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: how to check if keys disabled?
Try show index from t1; Show index from t2; -Original Message- From: Jacek Becla [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 03, 2005 4:00 PM To: Jay Blanchard Cc: mysql@lists.mysql.com Subject: Re: how to check if keys disabled? Jay Are you sure? DESCRIBE tells me the table has an index, but not whether the index is enabled or not: mysql> create table t1 (x int primary key); Query OK, 0 rows affected (0.01 sec) mysql> create table t2 (x int primary key); Query OK, 0 rows affected (0.01 sec) mysql> alter table t1 disable keys; Query OK, 0 rows affected (0.00 sec) mysql> describe t1; +---+-+--+-+-+---+ | Field | Type| Null | Key | Default | Extra | +---+-+--+-+-+---+ | x | int(11) | NO | PRI | | | +---+-+--+-+-+---+ 1 row in set (0.00 sec) mysql> describe t2; +---+-+--+-+-+---+ | Field | Type| Null | Key | Default | Extra | +---+-+--+-+-+---+ | x | int(11) | NO | PRI | | | +---+-+--+-+-+---+ 1 row in set (0.00 sec) Am I missing something? thanks, Jacek Jay Blanchard wrote: > [snip] > How can I find out if keys are enabled/disabled for a given table? > > Suppose I do: > create table t1 (x int primary key); > create table t2 (x int primary key); > alter table t1 disable keys; > > How can I now find out that t1 has keys disabled, and t2 enabled? > [/snip] > > DESCRIBE t1 or DESCRIBE t2 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: how to check if keys disabled?
Jay Are you sure? DESCRIBE tells me the table has an index, but not whether the index is enabled or not: mysql> create table t1 (x int primary key); Query OK, 0 rows affected (0.01 sec) mysql> create table t2 (x int primary key); Query OK, 0 rows affected (0.01 sec) mysql> alter table t1 disable keys; Query OK, 0 rows affected (0.00 sec) mysql> describe t1; +---+-+--+-+-+---+ | Field | Type| Null | Key | Default | Extra | +---+-+--+-+-+---+ | x | int(11) | NO | PRI | | | +---+-+--+-+-+---+ 1 row in set (0.00 sec) mysql> describe t2; +---+-+--+-+-+---+ | Field | Type| Null | Key | Default | Extra | +---+-+--+-+-+---+ | x | int(11) | NO | PRI | | | +---+-+--+-+-+---+ 1 row in set (0.00 sec) Am I missing something? thanks, Jacek Jay Blanchard wrote: [snip] How can I find out if keys are enabled/disabled for a given table? Suppose I do: create table t1 (x int primary key); create table t2 (x int primary key); alter table t1 disable keys; How can I now find out that t1 has keys disabled, and t2 enabled? [/snip] DESCRIBE t1 or DESCRIBE t2 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: how to check if keys disabled?
[snip] How can I find out if keys are enabled/disabled for a given table? Suppose I do: create table t1 (x int primary key); create table t2 (x int primary key); alter table t1 disable keys; How can I now find out that t1 has keys disabled, and t2 enabled? [/snip] DESCRIBE t1 or DESCRIBE t2 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
how to check if keys disabled?
Hi, How can I find out if keys are enabled/disabled for a given table? Suppose I do: create table t1 (x int primary key); create table t2 (x int primary key); alter table t1 disable keys; How can I now find out that t1 has keys disabled, and t2 enabled? thanks, Jacek -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
