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bug 762213 row count and subqueries

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This commit is contained in:
Marc Delisle
2003-07-08 14:24:41 +00:00
parent 67422095b5
commit 6081dca310
3 changed files with 56 additions and 31 deletions
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4
ChangeLog
View File

@@ -5,6 +5,10 @@ phpMyAdmin - Changelog
$Id$
$Source$
2003-07-08 Marc Delisle <lem9@users.sourceforge.net>
* libraries/sqlparser.lib.php3, sql.php3: bug 762213,
incorrect row count for MySQL 4.1 subqueries
2003-07-08 Michal Cihar <nijel@users.sourceforge.net>
* config.inc.php3, tbl_properties_operations.php3,
libraries/config_import.lib.php3, libraries/display_export.lib.php3,

25
libraries/sqlparser.lib.php3
View File

@@ -655,6 +655,7 @@ if (!defined('PMA_SQP_LIB_INCLUDED')) {
$subresult = array(
'querytype' => '',
'select_expr_clause'=> '', // the whole stuff between SELECT and FROM , except DISTINCT
'position_of_first_select' => '', // the array index
'from_clause'=> '',
'group_by_clause'=> '',
'order_by_clause'=> '',
@@ -732,6 +733,12 @@ if (!defined('PMA_SQP_LIB_INCLUDED')) {
* The CREATE TABLE may contain FOREIGN KEY clauses, so they get
* analyzed and ['foreign_keys'] is an array filled with the index list,
* the REFERENCES table name and REFERENCES index list.
*
* lem9: position_of_first_select
* ------------------------
*
* The array index of the first SELECT we find. Will be used to
* insert a SQL_CALC_FOUND_ROWS.
*/
// must be sorted
@@ -1204,6 +1211,11 @@ if (!defined('PMA_SQP_LIB_INCLUDED')) {
|| $first_reserved_word == 'DELETE') {
$subresult['queryflags']['need_confirm'] = 1;
}
if ($first_reserved_word=='SELECT'){
$position_of_first_select = $i;
}
} else {
if ($upper_data=='DROP' && $first_reserved_word=='ALTER') {
$subresult['queryflags']['need_confirm'] = 1;
@@ -1418,6 +1430,10 @@ if (!defined('PMA_SQP_LIB_INCLUDED')) {
$subresult['where_clause_identifiers'] = $where_clause_identifiers;
}
if (isset($position_of_first_select)) {
$subresult['position_of_first_select'] = $position_of_first_select;
}
// They are naughty and didn't have a trailing semi-colon,
// then still handle it properly
@@ -1464,7 +1480,7 @@ if (!defined('PMA_SQP_LIB_INCLUDED')) {
*
* @access public
*/
function PMA_SQP_formatHtml($arr, $mode='color')
function PMA_SQP_formatHtml($arr, $mode='color', $start_token=0)
{
// first check for the SQL parser having hit an error
if (PMA_SQP_isError()) {
@@ -1550,12 +1566,13 @@ if (!defined('PMA_SQP_LIB_INCLUDED')) {
$typearr[0] = '';
$typearr[1] = '';
$typearr[2] = '';
$typearr[3] = $arr[0]['type'];
//$typearr[3] = $arr[0]['type'];
$typearr[3] = $arr[$start_token]['type'];
}
$in_priv_list = FALSE;
for ($i = 0; $i < $arraysize; $i++) {
//DEBUG echo "<b>" . $arr[$i]['data'] . "</b> " . $arr[$i]['type'] . "<br />";
for ($i = $start_token; $i < $arraysize; $i++) {
// DEBUG echo "<b>" . $arr[$i]['data'] . "</b> " . $arr[$i]['type'] . "<br />";
$before = '';
$after = '';
$indent = 0;

32
sql.php3
View File

@@ -349,7 +349,7 @@ else {
// c o u n t q u e r y
// If we are just browsing, there is only one table,
// If we are "just browsing", there is only one table,
// and no where clause (or just 'WHERE 1 '),
// so we do a quick count (which uses MaxExactCount)
// because SQL_CALC_FOUND_ROWS
@@ -359,9 +359,10 @@ else {
&& (empty($analyzed_sql[0]['where_clause'])
|| $analyzed_sql[0]['where_clause'] == '1 ')) {
// "just browsing"
// "j u s t b r o w s i n g"
$unlim_num_rows = PMA_countRecords($db, $table, TRUE);
} else { // not "just browsing"
} else { // n o t " j u s t b r o w s i n g "
if (PMA_MYSQL_INT_VERSION < 40000) {
if (eregi('DISTINCT(.*)', $sql_query)) {
@@ -387,28 +388,29 @@ else {
// add select expression after the SQL_CALC_FOUND_ROWS
if (PMA_MYSQL_INT_VERSION >= 40000) {
if (eregi('DISTINCT(.*)', $sql_query)) {
$count_query .= 'DISTINCT ' . $analyzed_sql[0]['select_expr_clause'];
} else {
$count_query .= $analyzed_sql[0]['select_expr_clause'];
}
}
// if (eregi('DISTINCT(.*)', $sql_query)) {
// $count_query .= 'DISTINCT ' . $analyzed_sql[0]['select_expr_clause'];
// } else {
//$count_query .= $analyzed_sql[0]['select_expr_clause'];
// add everything that was after the first SELECT
$count_query .= PMA_SQP_formatHtml($parsed_sql, 'query_only', $analyzed_sql[0]['position_of_first_select']+1);
// }
} else { // PMA_MYSQL_INT_VERSION < 40000
if (!empty($analyzed_sql[0]['from_clause'])) {
$count_query .= ' FROM ' . $analyzed_sql[0]['from_clause'];
}
if (!empty($analyzed_sql[0]['where_clause'])) {
$count_query .= ' WHERE ' . $analyzed_sql[0]['where_clause'];
}
if (!empty($analyzed_sql[0]['group_by_clause'])) {
$count_query .= ' GROUP BY ' . $analyzed_sql[0]['group_by_clause'];
}
if (!empty($analyzed_sql[0]['having_clause'])) {
$count_query .= ' HAVING ' . $analyzed_sql[0]['having_clause'];
}
} // end if
// if using SQL_CALC_FOUND_ROWS, add a LIMIT to avoid
// long delays. Returned count will be complete anyway.
@@ -417,12 +419,13 @@ else {
$count_query .= ' LIMIT 1';
}
// do not put the order_by_clause, it interferes
// run the count query
//echo "trace cq=" . $count_query . "<br/>";
if (PMA_MYSQL_INT_VERSION < 40000) {
if ($cnt_all_result = PMA_mysql_query($count_query)) {
//if ($is_group) {
if ($count_what == '*') {
if ($is_group) {
// if ($count_what == '*') {
$unlim_num_rows = @mysql_num_rows($cnt_all_result);
} else {
$unlim_num_rows = PMA_mysql_result($cnt_all_result, 0, 'count');
@@ -430,6 +433,7 @@ else {
mysql_free_result($cnt_all_result);
} else {
if (mysql_error()) {
// there are some cases where the generated
// count_query (for MySQL 3) is wrong,
// so we get here.