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the stuff i wrote for 2.3.0 that creates automatic JOINS in

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db_details_qbe came up with rather slow Queries in certain circumstances.
now i did a complete rewrite - this should come up with much faster JOINS
but of course this needs more tests yet
as i was installing a new server here i decided to add the SQL for
the db we ask for - is that ok with everybody?
This commit is contained in:
Mike Beck
2002-09-18 21:03:42 +00:00
parent 350fd6f06c
commit 4061729f5c
3 changed files with 300 additions and 295 deletions
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6
ChangeLog
View File

@@ -5,6 +5,12 @@ phpMyAdmin - Changelog
$Id$ $Id$
$Source$ $Source$
2002-09-18 Mike Beck <mikebeck@users.sourceforge.net>
* db_details_qbe.php3: complete rewrite of the code
that creates the JOINS hoping that this will
be much faster in certain circumstances
please try - this needs some testing
2002-09-18 Marc Delisle <lem9@users.sourceforge.net> 2002-09-18 Marc Delisle <lem9@users.sourceforge.net>
* lang/slovenian update: thanks to Kositer Uros (urosh) * lang/slovenian update: thanks to Kositer Uros (urosh)

490
db_details_qbe.php3
View File

@@ -729,183 +729,217 @@ if (!empty($qry_select)) {
// If we can use Relations we could make some left joins // If we can use Relations we could make some left joins
// First find out if relations are available in this database // First find out if relations are available in this database
// Debugging:
//echo "</textarea><pre style=\"background-color:white;\">";
// First we need the really needed Tables - those in TableList might // First we need the really needed Tables - those in TableList might
// still be all Tables. // still be all Tables.
if (isset($Field) && count($Field) > 0) { if (isset($Field) && count($Field) > 0) {
// Initialize some variables // Initialize some variables
$alltabs = array(); $tab_all = array();
$where = array(); $col_all = array();
$wheretabs = array(); $tab_know = array();
$reltabs = array(); $tab_left = array();
$rel = array(); $col_where = array();
$rest = array(); $fromclause = '';
$found = array();
// we only start this if we have fields, otherwise it would be dumb // we only start this if we have fields, otherwise it would be dumb
//echo "get everything\n";
while (list(, $value) = each($Field)) { while (list(, $value) = each($Field)) {
$parts = explode('.', $value); $_parts = explode('.', $value);
if (urldecode($parts[0]) != '') { if (!empty($_parts[0]) && !empty($_parts[1])) {
$alltabs[] = substr(urldecode($parts[0]), 1, strlen(urldecode($parts[0])) - 2); $_tab_raw = urldecode($_parts[0]);
$_tab = str_replace('`', '', $_tab_raw);
//echo "new Tab: " . $_tab . "\n";
$tab_all[$_tab] = $_tab;
$_col_raw = urldecode($_parts[1]);
$col_all[] = $_tab . '.' . str_replace('`', '', $_col_raw);
//echo "new col:" . $_tab . '.' . str_replace('`', '', $_col_raw) . "\n";
} }
} // end while } // end while
if ($cfgRelation['relwork'] && count($alltabs) > 0) { //echo "check whereclauses\n";
if ($cfgRelation['relwork'] && count($tab_all) > 0) {
// now we need all tables that we have in the whereclause // now we need all tables that we have in the whereclause
for ($x = 0; $x < count($Criteria); $x++) { for ($x = 0; $x < count($Criteria); $x++) {
$wtable = explode('.', urldecode($Field[$x])); $_tab_wher = explode('.', urldecode($Field[$x]));
$ctable = str_replace('`', '', $wtable[0]); if(!empty($_tab_wher[0]) && !empty($_tab_wher[1])) {
if (!empty($Field[$x]) && !empty($Criteria[$x])) { $_tab_raw = urldecode($_tab_wher[0]);
if (empty($where[$ctable]) || $where[$ctable] != '=') { $_tab = str_replace('`', '', $_tab_raw);
$where[$ctable] = substr($Criteria[$x], 0, 1);
$_col_raw = urldecode($_tab_wher[1]);
$_col = str_replace('`', '', $_col_raw);
$_col = $_tab . '.' . $_col;
// now we know that our array has the same numbers as $Criteria
// we can check which of our columns has a whereclause
if (!empty($Criteria[$x])) {
if (substr($Criteria[$x],0,1) == '=' || eregi('is',$Criteria[$x])) {
$col_where[$_col] = $_col;
$tab_where[$_tab] = $_tab;
//echo "new Whereclause:".$_tab."\n";
}
} }
} }
} // end for } // end for
if (count($where) > 1) { // clean temp vars w/o further use
// if we have enough whereclauses then we want those that have unset($_tab_raw,$_col_raw);
// a '=' (not for example 'like')
while (list($key, $value) = each($where)) {
if ($value == '=') {
$wheretabs[$key] = '=';
}
}
} // end if
// if there was nothing starting with '=' we have to use all we got in if (count($col_where) == 1) {
// the first place (we can't use an "&=" assignment because of PHP3 // if there is exactly one column that has a decent where-clause
// compliance) // we will just use this
if (count($wheretabs) == 0) { $master = $col_where[0];
$wheretabs = $where; //echo "nur ein where: master =".$master . "\n";
} else {
// now let's find out which of the tables has an index
//echo "pr<70>fe indexe:\n";
while (list(, $_tab) = each($tab_all)) {
$ind_qry = 'SHOW INDEX FROM ' . PMA_backquote($_tab);
$ind_rs = PMA_mysql_query($ind_qry);
while ($ind = PMA_mysql_fetch_array($ind_rs)) {
$_col = $_tab . '.' . $ind['Column_name'];
if (isset($col_all[$_col])) {
if ($ind['non_unique'] == 0) {
if (isset($col_where[$_col])) {
$col_unique[$_col] = 'Y';
} else {
$col_unique[$_col] = 'N';
}
//echo "neuen unique index gefunden:".$_col."\n";
} else {
if (isset($col_where[$_col])) {
$col_index[$_col] = 'Y';
} else {
$col_index[$_col] = 'N';
}
//echo "neuen index gefunden:".$_col."\n";
}
}
} // End while (each col of tab)
} // End while (each tab)
// now we want to find the best.
if (isset($col_unique) && count($col_unique)>0) {
$col_cand = $col_unique;
//echo "Kandidaten sind jetzt alle mit unique index\n";
$_needsort= 1;
} elseif (isset($col_index) && count($col_index) > 0) {
$col_cand = $col_index;
$_needsort= 1;
//echo "Kandidaten sind jetzt alle mit index\n";
} elseif (isset($col_where) && count($col_where) > 0) {
$col_cand = $tab_where;
//echo "Kandidaten sind jetzt alle im whereclause\n";
$_needsort= 0;
} else {
$col_cand = $tab_all;
$_needsort= 0;
//echo "Kandidaten sind jetzt alle \n";
} }
// When we want the fastest SELECT Statement, it would be great // if we came up with $col_unique (very good) or
// to have one Table as $master (that is the one that will be in // $col_index (still good) as $col_cand we want to check
// FROM ... contrary to the rest which will just show in the LEFT JOIN // if we have any 'Y' there (that would mean that
// lines) that has a good whereclause and is FOREIGN table to as many // they were also found in the whereclauses which would be
// tables as possible // great). if yes, we take only those
if ($_needsort == 1) {
while (list($_col,$_iswhere) = each($col_cand)) {
$_tab = explode('.',$_col);
$_tab = $_tab[0];
if ($_iswhere == 'Y') {
$_vg[$_col] = $_tab;
} else {
$_sg[$_col] = $_tab;
}
}
if (isset($vg)) {
$col_cand = $vg;
//echo "Kandidaten konnten auf index+where beschr<68>nkt werden\n";
} else {
$col_cand = $sg;
//echo "keiner der Kandidaten mit Index ist im wherclause\n";
}
}
// We will need this a few times: // if our array of candidates has more than one member
$incrit = '(\'' . implode('\', \'', $alltabs) . '\')'; // we'll just find the smallest table.
// of course the actual query would be faster if we check
// for the Criteria which gives the smallest resultset
// in its table, but it would take too much time to check this
if (count($col_cand)>1) {
//echo "wir haben immer noch mehr als einen Kandidaten. Pr<50>fe Gr<47><72>e\n";
// of course we only want to check each table once
$_checked_tables = $col_cand;
while (list(, $_tab) = each($col_cand)) {
if ($_checked_tables[$_tab] != 1 ) {
//echo "pr<70>fe jetzt: Tabelle ".$_tab. "\n";
$rows_qry = 'SELECT count(1) as anz '
. 'FROM ' . PMA_backquote($_tab);
$rows_rs = PMA_mysql_query($rows_qry);
while ($res = PMA_mysql_fetch_array($rows_rs)) {
$_tsize[$_tab] = $res['anz'];
//echo "$_tab hat:" .$_tsize[$_tab]."\n";
}
$_checked_tables[$_tab] =1;
}
$_csize[$_tab] = $_tsize[$_tab];
//echo "erster csize: ".$_csize[$_tab]."\n";
}
asort($_csize);
reset($_csize);
$master = key($_csize);
//echo "kleinste Datei: " . $master . "\n";
} else {
$master = $col_cand[0];
//echo "master ist der einzige Kandidat: " . $master . "\n";
}
} // end if (exactly one where clause)
//echo "ich habe mich entschieden: " . $master;
//die;
$rel_query = 'SELECT foreign_table AS wer, COUNT(master_table) AS hits' // i will need something to remove unwanted entries from
. ' FROM ' . PMA_backquote($cfgRelation['relation']) // arrays which works with php3
. ' WHERE master_db = \'' . PMA_sqlAddslashes($db) . '\'' function array_short($array,$key)
. ' AND foreign_db = \'' . PMA_sqlAddslashes($db) . '\'' {
. ' AND master_table IN ' . $incrit while (list($k, $v) = each($array)) {
. ' AND foreign_table IN ' . $incrit; if ($k != $key) {
if (!empty($column)) { $reta[$k] = $v;
$rel_query .= ' AND foreign_field = \'' . PMA_sqlAddslashes($column) . '\''; }
}
if(!isset($reta)){
$reta = array();
}
return $reta;
} }
$rel_query .= ' GROUP BY foreign_table ORDER BY hits DESC';
$relations = PMA_query_as_cu($rel_query);
$bpm = FALSE; // now we will often need a function to find all
while ($row = PMA_mysql_fetch_array($relations)) { // related tables. what we will have is an array
// in case we will not find any foreign table that is also in the // of allready connected tables $tab_know and one
// where clause AND we do not find a master table later, then we // of tables that we still couldn't connect $tab_left
// just use the most popular foreign table (allthough chances are // all we start with is $tab_all and the knowledge of
// remote) // our $master
if (!isset($master)) { // as we need to work with php3 we cannot give the variables
$master = $row['wer']; // by & so i need to make them global ;-(
} // the only thing we give is wether to go from
if ($bpm == FALSE) { // master to foreign or vice versa
while (list($key, $value) = each($wheretabs)) {
if ($row['wer'] == $key) {
$master = $row['wer'];
$bpm = TRUE; // best possible master found ;-)
break;
}
} // end while
reset($wheretabs);
}
} // end while
// if we didn't find any best possible master at this point, then we function getrelatives($from) {
// will settle for the most popular master_table in the where clause global $tab_left,$tab_know,$fromclause,$db,$cfgRelation;
// (sbpm = second best possible master ;-) or if that fails as well, if ($from == 'master') {
// then rather the most popular master table than the most popular $to = 'foreign';
// foreign_table } else {
if ($bpm == FALSE) { $to = 'master';
$sbpm = FALSE;
// Easier to just save any bad master we had and use it if we do
// not find anything better
if (isset($master)) {
$badmaster = $master;
unset($master);
} }
$rel_query = 'SELECT master_table AS wer, COUNT(foreign_table) AS hits' $in_know = '(\'' . implode('\', \'', $tab_know) . '\')';
. ' FROM ' . PMA_backquote($cfgRelation['relation']) $in_left = '(\'' . implode('\', \'', $tab_left) . '\')';
. ' WHERE master_db = \'' . PMA_sqlAddslashes($db) . '\''
. ' AND foreign_db = \'' . PMA_sqlAddslashes($db) . '\''
. ' AND master_table IN ' . $incrit
. ' AND foreign_table IN ' . $incrit;
if (!empty($column)) {
$rel_query .= ' AND master_field = \'' . PMA_sqlAddslashes($column) . '\'';
}
$rel_query .= ' GROUP BY master_table ORDER BY hits DESC';
$relations = PMA_query_as_cu($rel_query);
while ($row = PMA_mysql_fetch_array($relations)) {
// we want the first one (highest number of hits) or the first one
// that is in the WHERE clause
if (!isset($master)) {
$master = $row['wer'];
}
if ($sbpm == FALSE) {
while (list($key, $value) = each($wheretabs)) {
if ($row['wer'] == $key) {
$master = $row['wer'];
$sbpm = TRUE;
break;
}
} // end while
reset($wheretabs);
}
} // end while
if (!isset($master) && isset($badmaster)) {
$master = $badmaster;
unset($badmaster);
}
} // end if bpm == FALSE
// if we still don't have a master at this point we might as well
// give up ;-)
if (isset($master) && $master != '') {
$qry_from = PMA_backquote($master);
// now we want one Array that has all tablenames but master
while (list(, $value) = each($alltabs)) {
if ($value != $master) {
$reltabs[] = $value;
$rel[$value]['mcon'] = 0;
}
} // end while
// everything but the first table
$incrit_s = '(\'' . implode('\', \'', $reltabs) . '\')';
$rel_query = 'SELECT *' $rel_query = 'SELECT *'
. ' FROM ' . PMA_backquote($cfgRelation['relation']) . ' FROM ' . PMA_backquote($cfgRelation['relation'])
. ' WHERE master_db = \'' . PMA_sqlAddslashes($db) . '\'' . ' WHERE ' . $from . '_db = \'' . $db . '\''
. ' AND foreign_db = \'' . PMA_sqlAddslashes($db) . '\''; . ' AND ' . $to . '_db = \'' . $db . '\''
if ($bpm == TRUE) { // means that my $master is a foreign table . ' AND ' . $from . '_table IN ' . $in_know
$rel_query .= ' AND master_table IN ' . $incrit_s . ' AND ' . $to . '_table IN ' . $in_left;
. ' AND foreign_table IN ' . $incrit;
if (!empty($column)) {
$rel_query .= ' AND foreign_field = \'' . PMA_sqlAddslashes($column) . '\'';
}
} else {
$rel_query .= ' AND foreign_table IN ' . $incrit_s
. ' AND master_table IN ' . $incrit;
if (!empty($column)) {
$rel_query .= ' AND master_field = \'' . $column . '\'';
}
}
if (isset($dbh)) { if (isset($dbh)) {
PMA_mysql_select_db($cfgRelation['db'], $dbh); PMA_mysql_select_db($cfgRelation['db'], $dbh);
$relations = @PMA_mysql_query($rel_query, $dbh) or PMA_mysqlDie(PMA_mysql_error($dbh), $rel_query, '', $err_url_0); $relations = @PMA_mysql_query($rel_query, $dbh) or PMA_mysqlDie(PMA_mysql_error($dbh), $rel_query, '', $err_url_0);
@@ -915,155 +949,47 @@ if (isset($Field) && count($Field) > 0) {
$relations = @PMA_mysql_query($rel_query) or PMA_mysqlDie('', $rel_query, '', $err_url_0); $relations = @PMA_mysql_query($rel_query) or PMA_mysqlDie('', $rel_query, '', $err_url_0);
PMA_mysql_select_db($db); PMA_mysql_select_db($db);
} }
if ($bpm == TRUE) { // means that my $master is a foreign table
while ($row = PMA_mysql_fetch_array($relations)) { while ($row = PMA_mysql_fetch_array($relations)) {
$master_table = $row['master_table']; $found_table = $row[$to.'_table'];
if ($rel[$master_table]['mcon'] == 0) { if (isset($tab_left[$found_table])) {
// if we already found a link to the master table we don't $fromclause .= "\n LEFT JOIN "
// want another otherwise we take whatever we get . PMA_backquote($row[$to . '_table']) . ' ON '
$rel[$master_table]['link'] = ' LEFT JOIN ' . PMA_backquote($master_table) . PMA_backquote($row[$from. '_table']) . '.'
. ' ON ' . PMA_backquote($row['foreign_table']) . '.' . PMA_backquote($row['foreign_field']) . PMA_backquote($row[$from. '_field']) . ' = '
. ' = ' . PMA_backquote($row['master_table']) . '.' . PMA_backquote($row['master_field']); . PMA_backquote($row[$to . '_table']) . '.'
if ($row['foreign_table'] == $master) { . PMA_backquote($row[$to . '_field']) .' ';
$rel[$master_table]['mcon'] = 1; $tab_know[$found_table] = $found_table;
} $tab_left = array_short($tab_left,$found_table);
} }
} // end while } // end while
} // End of Function
$tab_left = array_short($tab_all,$master);
$tab_know[$master] = $master;
$run=0;$emerg='';
while (count($tab_left)>0) {
if ($run % 2 ==0) {
getrelatives('master');
} else { } else {
while ($row = PMA_mysql_fetch_array($relations)) { getrelatives('foreign');
$foreign_table = $row['foreign_table'];
if ($rel[$foreign_table]['mcon'] == 0) {
// if we already found a link to the master table we don't
// want another otherwise we take whatever we get
$rel[$foreign_table]['link'] = ' LEFT JOIN ' . PMA_backquote($foreign_table)
. ' ON ' . PMA_backquote($row['foreign_table']) . '.' . PMA_backquote($row['foreign_field'])
. ' = ' . PMA_backquote($row['master_table']) . '.' . PMA_backquote($row['master_field']);
if ($row['master_table'] == $master) {
$rel[$foreign_table]['mcon'] = 1;
} }
} $run++;
} // end while if ($run>5) {
}
// possibly we still don't have all - there might be some that are
// only found in relation to one of those that we already have
if ($master != '') {
$found[] = $master;
$qry_from = PMA_backquote($master);
} // end if
while (list($key, $varr) = each($rel)) { while ( list(,$_tab) = each($tab_left)) {
if (!isset($varr['link']) || $varr['link'] == '') { $emerg .= ', '.$t_tab;
$rest[] = $key; $tab_left=array_short($tab_left,$_tab);
} else {
$found[] = $key;
}
} // end while
if (count($rest) > 0) {
$incrit_d = '(\'' . implode('\', \'', $found) . '\')';
$incrit_s = '(\'' . implode('\', \'', $rest) . '\')';
if ($bpm == TRUE) {
$from_table = 'foreign_table';
$from_field = 'foreign_field';
$to_table = 'master_table';
} else {
$from_table = 'master_table';
$from_field = 'master_field';
$to_table = 'foreign_table';
}
$rel_query = 'SELECT *'
. ' FROM ' . PMA_backquote($cfgRelation['relation'])
. ' WHERE master_db = \'' . PMA_sqlAddslashes($db) . '\''
. ' AND foreign_db = \'' . PMA_sqlAddslashes($db) . '\''
. ' AND ' . $from_table . ' IN ' . $incrit_s
. ' AND ' . $to_table . ' IN ' . $incrit_d;
if (!empty($column)) {
$rel_query .= ' AND ' . $from_field . ' = \'' . PMA_sqlAddslashes($column) . '\'';
}
if (isset($dbh)) {
PMA_mysql_select_db($cfgRelation['db'], $dbh);
$relations = @PMA_mysql_query($rel_query, $dbh) or PMA_mysqlDie(PMA_mysql_error($dbh), $rel_query, '', $err_url_0);
PMA_mysql_select_db($db, $dbh);
} else {
PMA_mysql_select_db($cfgRelation['db']);
$relations = @PMA_mysql_query($rel_query) or PMA_mysqlDie('', $rel_query, '', $err_url_0);
PMA_mysql_select_db($db);
}
while ($row = PMA_mysql_fetch_array($relations)) {
if ($bpm == TRUE) {
$found_table = $row['foreign_table'];
$other_table = $row['master_table'];
} else {
$found_table = $row['master_table'];
$other_table = $row['foreign_table'];
}
if ($rel[$found_table]['mcon'] == 0) {
// if we allready found a link to the mastertable we
// don't want another otherwise we take whatever we get
$rel[$found_table]['link'] = ' LEFT JOIN ' . $found_table
. ' ON ' . PMA_backquote($row['master_table']) . '.' . PMA_backquote($row['master_field'])
. ' = ' . PMA_backquote($row['foreign_table']) . '.' . PMA_backquote($row['foreign_field']);
// in extreme cases we hadn't found a master yet, so
// let's use the one we found now
if ($master == '') {
$master = $found_table;
}
if ($other_table == $master) {
$rel[$found_table]['mcon'] = 1;
} }
} }
} // end while
} // end if
// now let's see what we found - every table that doesn't have a
// link gets added directly to the FROM the links go to a second
// variable $lj which is added afterwards
$lj = '';
$ljm = '';
reset($rel);
while (list($key, $varr) = each($rel)) {
if ($varr['link'] == '') {
if ($qry_from != '') {
$qry_from .= ', ';
} }
$qry_from .= PMA_backquote($key); $qry_from = $master . $emerg . $fromclause;
// debug echo "add ". $key . ": " . PMA_backquote($key) . "\n";
} else if ($varr['mcon'] == 0) {
// those that have no link with the mastertable we will
// show at the end
$lj .= $varr['link'];
} else {
$ljm .= $varr['link'];
}
} // end while
// on one occasion i had qry_from at this point end with a , as I
// can't find why this happened i check this now:
$qry_from = ereg_replace(', $', '', $qry_from);
$qry_from .= $ljm . $lj;
} // end if ($master != '')
} // end rel work and $alltabs > 0
if (empty($qry_from) && count($alltabs)) {
// there might be more than one mentioning of the table in here
// as array_unique is only PHP4 we have to do this by hand
$temp = array();
while (list($k, $v) = each($alltabs)) {
$temp[$v] = 1;
}
unset($alltabs);
$alltabs = array();
while (list($k, $v) = each($temp)) {
$alltabs[] = $k;
}
$qry_from = implode(', ', PMA_backquote($alltabs));
} }
} // end count($Field) > 0 } // end count($Field) > 0
// now let's see what we got
if (!empty($qry_from)) { if (!empty($qry_from)) {
$encoded_qry .= urlencode('FROM ' . $qry_from . "\n"); $encoded_qry .= urlencode('FROM ' . $qry_from . "\n");
echo 'FROM ' . htmlspecialchars($qry_from) . "\n"; echo 'FROM ' . htmlspecialchars($qry_from) . "\n";

73
scripts/create_tables.sql Normal file
View File

@@ -0,0 +1,73 @@
#########################################################
# #
# SQL Commands to set up the pmadb as described in #
# Documentation.txt. #
# #
# This script expects the user pma to allready be #
# existing. (if we would put a line here to create him #
# too many users might just use this script and end #
# up with having the same password for the controluser) #
# #
# Please dont forget to set up the tablenames in #
# config.inc.php3 #
# #
#########################################################
CREATE DATABASE phpmyadmin;
GRANT SELECT,INSERT,DELETE ON phpmyadmin.* to
'pma'@localhost;
CREATE TABLE `PMA_bookmark` (
id int(11) DEFAULT '0' NOT NULL auto_increment,
dbase varchar(255) NOT NULL,
user varchar(255) NOT NULL,
label varchar(255) NOT NULL,
query text NOT NULL,
PRIMARY KEY (id)
) TYPE=MyISAM COMMENT='Bookmarks';
CREATE TABLE `PMA_relation` (
`master_db` varchar(64) NOT NULL default '',
`master_table` varchar(64) NOT NULL default '',
`master_field` varchar(64) NOT NULL default '',
`foreign_db` varchar(64) NOT NULL default '',
`foreign_table` varchar(64) NOT NULL default '',
`foreign_field` varchar(64) NOT NULL default '',
PRIMARY KEY (`master_db`, `master_table`,`master_field`),
KEY foreign_field (foreign_db, foreign_table)
) TYPE=MyISAM COMMENT='Relation table';
CREATE TABLE `PMA_table_info` (
`db_name` varchar(64) NOT NULL default '',
`table_name` varchar(64) NOT NULL default '',
`display_field` varchar(64) NOT NULL default '',
PRIMARY KEY (`db_name`, `table_name`)
) TYPE=MyISAM COMMENT='Table information for phpMyAdmin';
CREATE TABLE `PMA_table_coords` (
`db_name` varchar(64) NOT NULL default '',
`table_name` varchar(64) NOT NULL default '',
`pdf_page_number` int NOT NULL default '0',
`x` float unsigned NOT NULL default '0',
`y` float unsigned NOT NULL default '0',
PRIMARY KEY (`db_name`, `table_name`, `pdf_page_number`)
) TYPE=MyISAM COMMENT='Table coordinates for phpMyAdmin PDF output';
CREATE TABLE `PMA_pdf_pages` (
`db_name` varchar(64) NOT NULL default '',
`page_nr` int(10) unsigned NOT NULL auto_increment,
`page_descr` varchar(50) NOT NULL default '',
PRIMARY KEY (page_nr),
KEY (db_name)
) TYPE=MyISAM COMMENT='PDF Relationpages for PMA';
CREATE TABLE `PMA_column_comments` (
id int(5) unsigned NOT NULL auto_increment,
db_name varchar(64) NOT NULL default '',
table_name varchar(64) NOT NULL default '',
column_name varchar(64) NOT NULL default '',
comment varchar(255) NOT NULL default '',
PRIMARY KEY (id),
UNIQUE KEY db_name (db_name, table_name, column_name)
) TYPE=MyISAM COMMENT='Comments for Columns';