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config option to disable use of information_schema (if ok backport to QA_2_11)

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This commit is contained in:
Sebastian Mendel
2007-12-13 10:07:01 +00:00
parent d462d869ad
commit 560c6d4f6f
2 changed files with 286 additions and 159 deletions
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434
libraries/database_interface.lib.php
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@@ -230,63 +230,65 @@ function PMA_DBI_get_tables_full($database, $table = false,
$tables = array();
// get table information from information_schema
if ($table) {
if (true === $tbl_is_group) {
$sql_where_table = 'AND `TABLE_NAME` LIKE \''
. PMA_escape_mysql_wildcards(addslashes($table)) . '%\'';
} elseif ('comment' === $tbl_is_group) {
$sql_where_table = 'AND `TABLE_COMMENT` LIKE \''
. PMA_escape_mysql_wildcards(addslashes($table)) . '%\'';
} else {
$sql_where_table = 'AND `TABLE_NAME` = \'' . addslashes($table) . '\'';
}
} else {
$sql_where_table = '';
if (! $GLOBALS['cfg']['Server']['DisableIS']) {
// get table information from information_schema
if ($table) {
if (true === $tbl_is_group) {
$sql_where_table = 'AND `TABLE_NAME` LIKE \''
. PMA_escape_mysql_wildcards(addslashes($table)) . '%\'';
} elseif ('comment' === $tbl_is_group) {
$sql_where_table = 'AND `TABLE_COMMENT` LIKE \''
. PMA_escape_mysql_wildcards(addslashes($table)) . '%\'';
} else {
$sql_where_table = 'AND `TABLE_NAME` = \'' . addslashes($table) . '\'';
}
} else {
$sql_where_table = '';
}
// for PMA bc:
// `SCHEMA_FIELD_NAME` AS `SHOW_TABLE_STATUS_FIELD_NAME`
//
// on non-Windows servers,
// added BINARY in the WHERE clause to force a case sensitive
// comparison (if we are looking for the db Aa we don't want
// to find the db aa)
$this_databases = array_map('PMA_sqlAddslashes', $databases);
$sql = '
SELECT *,
`TABLE_SCHEMA` AS `Db`,
`TABLE_NAME` AS `Name`,
`ENGINE` AS `Engine`,
`ENGINE` AS `Type`,
`VERSION` AS `Version`,
`ROW_FORMAT` AS `Row_format`,
`TABLE_ROWS` AS `Rows`,
`AVG_ROW_LENGTH` AS `Avg_row_length`,
`DATA_LENGTH` AS `Data_length`,
`MAX_DATA_LENGTH` AS `Max_data_length`,
`INDEX_LENGTH` AS `Index_length`,
`DATA_FREE` AS `Data_free`,
`AUTO_INCREMENT` AS `Auto_increment`,
`CREATE_TIME` AS `Create_time`,
`UPDATE_TIME` AS `Update_time`,
`CHECK_TIME` AS `Check_time`,
`TABLE_COLLATION` AS `Collation`,
`CHECKSUM` AS `Checksum`,
`CREATE_OPTIONS` AS `Create_options`,
`TABLE_COMMENT` AS `Comment`
FROM `information_schema`.`TABLES`
WHERE ' . (PMA_IS_WINDOWS ? '' : 'BINARY') . ' `TABLE_SCHEMA` IN (\'' . implode("', '", $this_databases) . '\')
' . $sql_where_table;
if ($limit_count) {
$sql .= ' LIMIT ' . $limit_count . ' OFFSET ' . $limit_offset;
}
$tables = PMA_DBI_fetch_result($sql, array('TABLE_SCHEMA', 'TABLE_NAME'),
null, $link);
unset($sql_where_table, $sql);
}
// for PMA bc:
// `SCHEMA_FIELD_NAME` AS `SHOW_TABLE_STATUS_FIELD_NAME`
//
// on non-Windows servers,
// added BINARY in the WHERE clause to force a case sensitive
// comparison (if we are looking for the db Aa we don't want
// to find the db aa)
$this_databases = array_map('PMA_sqlAddslashes', $databases);
$sql = '
SELECT *,
`TABLE_SCHEMA` AS `Db`,
`TABLE_NAME` AS `Name`,
`ENGINE` AS `Engine`,
`ENGINE` AS `Type`,
`VERSION` AS `Version`,
`ROW_FORMAT` AS `Row_format`,
`TABLE_ROWS` AS `Rows`,
`AVG_ROW_LENGTH` AS `Avg_row_length`,
`DATA_LENGTH` AS `Data_length`,
`MAX_DATA_LENGTH` AS `Max_data_length`,
`INDEX_LENGTH` AS `Index_length`,
`DATA_FREE` AS `Data_free`,
`AUTO_INCREMENT` AS `Auto_increment`,
`CREATE_TIME` AS `Create_time`,
`UPDATE_TIME` AS `Update_time`,
`CHECK_TIME` AS `Check_time`,
`TABLE_COLLATION` AS `Collation`,
`CHECKSUM` AS `Checksum`,
`CREATE_OPTIONS` AS `Create_options`,
`TABLE_COMMENT` AS `Comment`
FROM `information_schema`.`TABLES`
WHERE ' . (PMA_IS_WINDOWS ? '' : 'BINARY') . ' `TABLE_SCHEMA` IN (\'' . implode("', '", $this_databases) . '\')
' . $sql_where_table;
if ($limit_count) {
$sql .= ' LIMIT ' . $limit_count . ' OFFSET ' . $limit_offset;
}
$tables = PMA_DBI_fetch_result($sql, array('TABLE_SCHEMA', 'TABLE_NAME'),
null, $link);
unset($sql_where_table, $sql);
// If permissions are wrong on even one database directory,
// information_schema does not return any table info for any database
// this is why we fall back to SHOW TABLE STATUS even for MySQL >= 50002
@@ -411,80 +413,124 @@ function PMA_DBI_get_databases_full($database = null, $force_stats = false,
$apply_limit_and_order_manual = true;
/**
* if $GLOBALS['cfg']['NaturalOrder'] is enabled, we cannot use LIMIT
* cause MySQL does not support natural ordering, we have to do it afterward
*/
if ($GLOBALS['cfg']['NaturalOrder']) {
$limit = '';
} else {
if ($limit_count) {
$limit = ' LIMIT ' . $limit_count . ' OFFSET ' . $limit_offset;
if (! $GLOBALS['cfg']['Server']['DisableIS']) {
/**
* if $GLOBALS['cfg']['NaturalOrder'] is enabled, we cannot use LIMIT
* cause MySQL does not support natural ordering, we have to do it afterward
*/
if ($GLOBALS['cfg']['NaturalOrder']) {
$limit = '';
} else {
if ($limit_count) {
$limit = ' LIMIT ' . $limit_count . ' OFFSET ' . $limit_offset;
}
$apply_limit_and_order_manual = false;
}
$apply_limit_and_order_manual = false;
}
// get table information from information_schema
if ($database) {
$sql_where_schema = 'WHERE `SCHEMA_NAME` LIKE \''
. addslashes($database) . '\'';
} else {
$sql_where_schema = '';
}
// get table information from information_schema
if ($database) {
$sql_where_schema = 'WHERE `SCHEMA_NAME` LIKE \''
. addslashes($database) . '\'';
} else {
$sql_where_schema = '';
}
// for PMA bc:
// `SCHEMA_FIELD_NAME` AS `SHOW_TABLE_STATUS_FIELD_NAME`
$sql = '
SELECT `information_schema`.`SCHEMATA`.*';
if ($force_stats) {
$sql .= ',
COUNT(`information_schema`.`TABLES`.`TABLE_SCHEMA`)
AS `SCHEMA_TABLES`,
SUM(`information_schema`.`TABLES`.`TABLE_ROWS`)
AS `SCHEMA_TABLE_ROWS`,
SUM(`information_schema`.`TABLES`.`DATA_LENGTH`)
AS `SCHEMA_DATA_LENGTH`,
SUM(`information_schema`.`TABLES`.`MAX_DATA_LENGTH`)
AS `SCHEMA_MAX_DATA_LENGTH`,
SUM(`information_schema`.`TABLES`.`INDEX_LENGTH`)
AS `SCHEMA_INDEX_LENGTH`,
SUM(`information_schema`.`TABLES`.`DATA_LENGTH`
+ `information_schema`.`TABLES`.`INDEX_LENGTH`)
AS `SCHEMA_LENGTH`,
SUM(`information_schema`.`TABLES`.`DATA_FREE`)
AS `SCHEMA_DATA_FREE`';
}
$sql .= '
FROM `information_schema`.`SCHEMATA`';
if ($force_stats) {
// for PMA bc:
// `SCHEMA_FIELD_NAME` AS `SHOW_TABLE_STATUS_FIELD_NAME`
$sql = '
SELECT `information_schema`.`SCHEMATA`.*';
if ($force_stats) {
$sql .= ',
COUNT(`information_schema`.`TABLES`.`TABLE_SCHEMA`)
AS `SCHEMA_TABLES`,
SUM(`information_schema`.`TABLES`.`TABLE_ROWS`)
AS `SCHEMA_TABLE_ROWS`,
SUM(`information_schema`.`TABLES`.`DATA_LENGTH`)
AS `SCHEMA_DATA_LENGTH`,
SUM(`information_schema`.`TABLES`.`MAX_DATA_LENGTH`)
AS `SCHEMA_MAX_DATA_LENGTH`,
SUM(`information_schema`.`TABLES`.`INDEX_LENGTH`)
AS `SCHEMA_INDEX_LENGTH`,
SUM(`information_schema`.`TABLES`.`DATA_LENGTH`
+ `information_schema`.`TABLES`.`INDEX_LENGTH`)
AS `SCHEMA_LENGTH`,
SUM(`information_schema`.`TABLES`.`DATA_FREE`)
AS `SCHEMA_DATA_FREE`';
}
$sql .= '
LEFT JOIN `information_schema`.`TABLES`
ON BINARY `information_schema`.`TABLES`.`TABLE_SCHEMA`
= BINARY `information_schema`.`SCHEMATA`.`SCHEMA_NAME`';
}
$sql .= '
' . $sql_where_schema . '
GROUP BY BINARY `information_schema`.`SCHEMATA`.`SCHEMA_NAME`
ORDER BY BINARY ' . PMA_backquote($sort_by) . ' ' . $sort_order
. $limit;
$databases = PMA_DBI_fetch_result($sql, 'SCHEMA_NAME', null, $link);
$mysql_error = PMA_DBI_getError($link);
if (! count($databases) && $GLOBALS['errno']) {
PMA_mysqlDie($mysql_error, $sql);
}
// display only databases also in official database list
// f.e. to apply hide_db and only_db
$drops = array_diff(array_keys($databases), $GLOBALS['PMA_List_Database']->items);
if (count($drops)) {
foreach ($drops as $drop) {
unset($databases[$drop]);
FROM `information_schema`.`SCHEMATA`';
if ($force_stats) {
$sql .= '
LEFT JOIN `information_schema`.`TABLES`
ON BINARY `information_schema`.`TABLES`.`TABLE_SCHEMA`
= BINARY `information_schema`.`SCHEMATA`.`SCHEMA_NAME`';
}
$sql .= '
' . $sql_where_schema . '
GROUP BY BINARY `information_schema`.`SCHEMATA`.`SCHEMA_NAME`
ORDER BY BINARY ' . PMA_backquote($sort_by) . ' ' . $sort_order
. $limit;
$databases = PMA_DBI_fetch_result($sql, 'SCHEMA_NAME', null, $link);
$mysql_error = PMA_DBI_getError($link);
if (! count($databases) && $GLOBALS['errno']) {
PMA_mysqlDie($mysql_error, $sql);
}
// display only databases also in official database list
// f.e. to apply hide_db and only_db
$drops = array_diff(array_keys($databases), $GLOBALS['PMA_List_Database']->items);
if (count($drops)) {
foreach ($drops as $drop) {
unset($databases[$drop]);
}
unset($drop);
}
unset($sql_where_schema, $sql, $drops);
} else {
foreach ($GLOBALS['PMA_List_Database']->items as $database_name) {
// MySQL forward compatibility
// so pma could use this array as if every server is of version >5.0
$databases[$database_name]['SCHEMA_NAME'] = $database_name;
if ($force_stats) {
require_once 'mysql_charsets.lib.php';
$databases[$database_name]['DEFAULT_COLLATION_NAME']
= PMA_getDbCollation($database_name);
// get additonal info about tables
$databases[$database_name]['SCHEMA_TABLES'] = 0;
$databases[$database_name]['SCHEMA_TABLE_ROWS'] = 0;
$databases[$database_name]['SCHEMA_DATA_LENGTH'] = 0;
$databases[$database_name]['SCHEMA_MAX_DATA_LENGTH'] = 0;
$databases[$database_name]['SCHEMA_INDEX_LENGTH'] = 0;
$databases[$database_name]['SCHEMA_LENGTH'] = 0;
$databases[$database_name]['SCHEMA_DATA_FREE'] = 0;
$res = PMA_DBI_query('SHOW TABLE STATUS FROM ' . PMA_backquote($database_name) . ';');
while ($row = PMA_DBI_fetch_assoc($res)) {
$databases[$database_name]['SCHEMA_TABLES']++;
$databases[$database_name]['SCHEMA_TABLE_ROWS']
+= $row['Rows'];
$databases[$database_name]['SCHEMA_DATA_LENGTH']
+= $row['Data_length'];
$databases[$database_name]['SCHEMA_MAX_DATA_LENGTH']
+= $row['Max_data_length'];
$databases[$database_name]['SCHEMA_INDEX_LENGTH']
+= $row['Index_length'];
$databases[$database_name]['SCHEMA_DATA_FREE']
+= $row['Data_free'];
$databases[$database_name]['SCHEMA_LENGTH']
+= $row['Data_length'] + $row['Index_length'];
}
PMA_DBI_free_result($res);
unset($res);
}
}
unset($drop);
}
unset($sql_where_schema, $sql, $drops);
/**
* apply limit and order manually now
@@ -534,45 +580,117 @@ function PMA_DBI_get_columns_full($database = null, $table = null,
{
$columns = array();
$sql_wheres = array();
$array_keys = array();
if (! $GLOBALS['cfg']['Server']['DisableIS']) {
$sql_wheres = array();
$array_keys = array();
// get columns information from information_schema
if (null !== $database) {
$sql_wheres[] = '`TABLE_SCHEMA` = \'' . addslashes($database) . '\' ';
// get columns information from information_schema
if (null !== $database) {
$sql_wheres[] = '`TABLE_SCHEMA` = \'' . addslashes($database) . '\' ';
} else {
$array_keys[] = 'TABLE_SCHEMA';
}
if (null !== $table) {
$sql_wheres[] = '`TABLE_NAME` = \'' . addslashes($table) . '\' ';
} else {
$array_keys[] = 'TABLE_NAME';
}
if (null !== $column) {
$sql_wheres[] = '`COLUMN_NAME` = \'' . addslashes($column) . '\' ';
} else {
$array_keys[] = 'COLUMN_NAME';
}
// for PMA bc:
// `[SCHEMA_FIELD_NAME]` AS `[SHOW_FULL_COLUMNS_FIELD_NAME]`
$sql = '
SELECT *,
`COLUMN_NAME` AS `Field`,
`COLUMN_TYPE` AS `Type`,
`COLLATION_NAME` AS `Collation`,
`IS_NULLABLE` AS `Null`,
`COLUMN_KEY` AS `Key`,
`COLUMN_DEFAULT` AS `Default`,
`EXTRA` AS `Extra`,
`PRIVILEGES` AS `Privileges`,
`COLUMN_COMMENT` AS `Comment`
FROM `information_schema`.`COLUMNS`';
if (count($sql_wheres)) {
$sql .= "\n" . ' WHERE ' . implode(' AND ', $sql_wheres);
}
$columns = PMA_DBI_fetch_result($sql, $array_keys, null, $link);
unset($sql_wheres, $sql);
} else {
$array_keys[] = 'TABLE_SCHEMA';
}
if (null !== $table) {
$sql_wheres[] = '`TABLE_NAME` = \'' . addslashes($table) . '\' ';
} else {
$array_keys[] = 'TABLE_NAME';
}
if (null !== $column) {
$sql_wheres[] = '`COLUMN_NAME` = \'' . addslashes($column) . '\' ';
} else {
$array_keys[] = 'COLUMN_NAME';
if (null === $database) {
foreach ($GLOBALS['PMA_List_Database']->items as $database) {
$columns[$database] = PMA_DBI_get_columns_full($database, null,
null, $link);
}
return $columns;
} elseif (null === $table) {
$tables = PMA_DBI_get_tables($database);
foreach ($tables as $table) {
$columns[$table] = PMA_DBI_get_columns_full(
$database, $table, null, $link);
}
return $columns;
}
$sql = 'SHOW FULL COLUMNS FROM '
. PMA_backquote($database) . '.' . PMA_backquote($table);
if (null !== $column) {
$sql .= " LIKE '" . $column . "'";
}
$columns = PMA_DBI_fetch_result($sql, 'Field', null, $link);
$ordinal_position = 1;
foreach ($columns as $column_name => $each_column) {
// MySQL forward compatibility
// so pma could use this array as if every server is of version >5.0
$columns[$column_name]['COLUMN_NAME'] =& $columns[$column_name]['Field'];
$columns[$column_name]['COLUMN_TYPE'] =& $columns[$column_name]['Type'];
$columns[$column_name]['COLLATION_NAME'] =& $columns[$column_name]['Collation'];
$columns[$column_name]['IS_NULLABLE'] =& $columns[$column_name]['Null'];
$columns[$column_name]['COLUMN_KEY'] =& $columns[$column_name]['Key'];
$columns[$column_name]['COLUMN_DEFAULT'] =& $columns[$column_name]['Default'];
$columns[$column_name]['EXTRA'] =& $columns[$column_name]['Extra'];
$columns[$column_name]['PRIVILEGES'] =& $columns[$column_name]['Privileges'];
$columns[$column_name]['COLUMN_COMMENT'] =& $columns[$column_name]['Comment'];
$columns[$column_name]['TABLE_CATALOG'] = null;
$columns[$column_name]['TABLE_SCHEMA'] = $database;
$columns[$column_name]['TABLE_NAME'] = $table;
$columns[$column_name]['ORDINAL_POSITION'] = $ordinal_position;
$columns[$column_name]['DATA_TYPE'] =
substr($columns[$column_name]['COLUMN_TYPE'], 0,
strpos($columns[$column_name]['COLUMN_TYPE'], '('));
/**
* @todo guess CHARACTER_MAXIMUM_LENGTH from COLUMN_TYPE
*/
$columns[$column_name]['CHARACTER_MAXIMUM_LENGTH'] = null;
/**
* @todo guess CHARACTER_OCTET_LENGTH from CHARACTER_MAXIMUM_LENGTH
*/
$columns[$column_name]['CHARACTER_OCTET_LENGTH'] = null;
$columns[$column_name]['NUMERIC_PRECISION'] = null;
$columns[$column_name]['NUMERIC_SCALE'] = null;
$columns[$column_name]['CHARACTER_SET_NAME'] =
substr($columns[$column_name]['COLLATION_NAME'], 0,
strpos($columns[$column_name]['COLLATION_NAME'], '_'));
$ordinal_position++;
}
if (null !== $column) {
reset($columns);
$columns = current($columns);
}
}
// for PMA bc:
// `[SCHEMA_FIELD_NAME]` AS `[SHOW_FULL_COLUMNS_FIELD_NAME]`
$sql = '
SELECT *,
`COLUMN_NAME` AS `Field`,
`COLUMN_TYPE` AS `Type`,
`COLLATION_NAME` AS `Collation`,
`IS_NULLABLE` AS `Null`,
`COLUMN_KEY` AS `Key`,
`COLUMN_DEFAULT` AS `Default`,
`EXTRA` AS `Extra`,
`PRIVILEGES` AS `Privileges`,
`COLUMN_COMMENT` AS `Comment`
FROM `information_schema`.`COLUMNS`';
if (count($sql_wheres)) {
$sql .= "\n" . ' WHERE ' . implode(' AND ', $sql_wheres);
}
return PMA_DBI_fetch_result($sql, $array_keys, null, $link);
return $columns;
}
/**