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170 lines
5.2 KiB
170 lines
5.2 KiB
5 months ago
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'\" t
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.\" Title: \fBndb_drop_index\fR
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.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
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.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
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.\" Date: 09/06/2019
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.\" Manual: MySQL Database System
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.\" Source: MySQL 8.0
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.\" Language: English
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.\"
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.TH "\FBNDB_DROP_INDEX\FR" "1" "09/06/2019" "MySQL 8\&.0" "MySQL Database System"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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ndb_drop_index \- drop index from an NDB table
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.SH "SYNOPSIS"
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.HP \w'\fBndb_drop_index\ \fR\fB\fIoptions\fR\fR\ 'u
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\fBndb_drop_index \fR\fB\fIoptions\fR\fR
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.SH "DESCRIPTION"
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.PP
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\fBndb_drop_index\fR
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drops the specified index from an
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NDB
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table\&.
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\fIIt is recommended that you use this utility only as an example for writing NDB API applications\fR\(emsee the Warning later in this section for details\&.
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Usage
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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ndb_drop_index \-c \fIconnection_string\fR \fItable_name\fR \fIindex\fR \-d \fIdb_name\fR
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.fi
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.if n \{\
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.RE
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.\}
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.PP
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The statement shown above drops the index named
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\fIindex\fR
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from the
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\fItable\fR
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in the
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\fIdatabase\fR\&.
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.PP
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The following table includes options that are specific to
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\fBndb_drop_index\fR\&. Additional descriptions follow the table\&. For options common to most NDB Cluster programs (including
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\fBndb_drop_index\fR), see
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Options Common to NDB Cluster Programs(1)\&.
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.sp
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.it 1 an-trap
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.nr an-no-space-flag 1
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.nr an-break-flag 1
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.br
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.B Table\ \&22.333.\ \&Command\-line options for the ndb_drop_index program
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.TS
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allbox tab(:);
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lB lB lB.
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T{
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Format
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T}:T{
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Description
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T}:T{
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Added, Deprecated, or Removed
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T}
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.T&
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l l l.
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T{
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.PP
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--database=dbname,
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.PP
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-d
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T}:T{
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Name of the database in which the table is found
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T}:T{
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.PP
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All NDB 8.0 releases
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T}
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.TE
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.sp 1
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.if n \{\
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.sp
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.\}
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.RS 4
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.it 1 an-trap
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.nr an-no-space-flag 1
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.nr an-break-flag 1
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.br
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.ps +1
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\fBWarning\fR
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.ps -1
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.br
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.PP
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\fIOperations performed on Cluster table indexes using the NDB API are not visible to MySQL and make the table unusable by a MySQL server\fR\&. If you use this program to drop an index, then try to access the table from an SQL node, an error results, as shown here:
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.sp .5v
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.RE
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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shell> \fB\&./ndb_drop_index \-c localhost dogs ix \-d ctest1\fR
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Dropping index dogs/idx\&.\&.\&.OK
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NDBT_ProgramExit: 0 \- OK
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shell> \fB\&./mysql \-u jon \-p ctest1\fR
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Enter password: *******
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Reading table information for completion of table and column names
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You can turn off this feature to get a quicker startup with \-A
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Welcome to the MySQL monitor\&. Commands end with ; or \eg\&.
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Your MySQL connection id is 7 to server version: 5\&.7\&.28\-ndb\-7\&.5\&.16
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Type \*(Aqhelp;\*(Aq or \*(Aq\eh\*(Aq for help\&. Type \*(Aq\ec\*(Aq to clear the buffer\&.
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mysql> \fBSHOW TABLES;\fR
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+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-+
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| Tables_in_ctest1 |
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+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-+
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| a |
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| bt1 |
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| bt2 |
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| dogs |
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| employees |
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| fish |
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+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-+
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6 rows in set (0\&.00 sec)
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mysql> \fBSELECT * FROM dogs;\fR
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ERROR 1296 (HY000): Got error 4243 \*(AqIndex not found\*(Aq from NDBCLUSTER
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.fi
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.if n \{\
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.RE
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.\}
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.PP
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In such a case, your
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\fIonly\fR
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option for making the table available to MySQL again is to drop the table and re\-create it\&. You can use either the SQL statementDROP TABLE
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or the
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\fBndb_drop_table\fR
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utility (see
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\fBndb_drop_table\fR(1)) to drop the table\&.
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.SH "COPYRIGHT"
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.br
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.PP
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Copyright \(co 1997, 2019, Oracle and/or its affiliates. All rights reserved.
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.PP
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This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License.
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.PP
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This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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.PP
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You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.
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.sp
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.SH "SEE ALSO"
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For more information, please refer to the MySQL Reference Manual,
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which may already be installed locally and which is also available
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online at http://dev.mysql.com/doc/.
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.SH AUTHOR
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Oracle Corporation (http://dev.mysql.com/).
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