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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Parse and analyse a SQL query
*
* @package PhpMyAdmin
*/
if (! defined('PHPMYADMIN')) {
exit;
}
/**
*
*/
$GLOBALS['unparsed_sql'] = $sql_query;
$parsed_sql = PMA_SQP_parse($sql_query);
$analyzed_sql = PMA_SQP_analyze($parsed_sql);
// for bug 780516: now that we use case insensitive preg_match
// or flags from the analyser, do not put back the reformatted query
// into $sql_query, to make this kind of query work without
// capitalizing keywords:
//
// CREATE TABLE SG_Persons (
// id int(10) unsigned NOT NULL auto_increment,
// first varchar(64) NOT NULL default '',
// PRIMARY KEY (`id`)
// )
// Fills some variables from the analysed SQL
// A table has to be created, renamed, dropped:
// the navigation panel should be reloaded
$reload = isset($analyzed_sql[0]['queryflags']['reload']);
// check for drop database
$drop_database = isset($analyzed_sql[0]['queryflags']['drop_database']);
// for the presence of EXPLAIN
$is_explain = isset($analyzed_sql[0]['queryflags']['is_explain']);
// for the presence of DELETE
$is_delete = isset($analyzed_sql[0]['queryflags']['is_delete']);
// for the presence of UPDATE, DELETE or INSERT|LOAD DATA|REPLACE
$is_affected = isset($analyzed_sql[0]['queryflags']['is_affected']);
// for the presence of REPLACE
$is_replace = isset($analyzed_sql[0]['queryflags']['is_replace']);
// for the presence of INSERT
$is_insert = isset($analyzed_sql[0]['queryflags']['is_insert']);
// for the presence of CHECK|ANALYZE|REPAIR|OPTIMIZE TABLE
$is_maint = isset($analyzed_sql[0]['queryflags']['is_maint']);
// for the presence of SHOW
$is_show = isset($analyzed_sql[0]['queryflags']['is_show']);
// for the presence of PROCEDURE ANALYSE
$is_analyse = isset($analyzed_sql[0]['queryflags']['is_analyse']);
// for the presence of INTO OUTFILE
$is_export = isset($analyzed_sql[0]['queryflags']['is_export']);
// for the presence of GROUP BY|HAVING|SELECT DISTINCT
$is_group = isset($analyzed_sql[0]['queryflags']['is_group']);
// for the presence of SUM|AVG|STD|STDDEV|MIN|MAX|BIT_OR|BIT_AND
$is_func = isset($analyzed_sql[0]['queryflags']['is_func']);
// for the presence of SELECT COUNT
$is_count = isset($analyzed_sql[0]['queryflags']['is_count']);
// check for a real SELECT ... FROM
$is_select = isset($analyzed_sql[0]['queryflags']['select_from']);
// the query contains a subquery
$is_subquery = isset($analyzed_sql[0]['queryflags']['is_subquery']);
// check for CALL
// Since multiple query execution is anyway handled,
// ignore the WHERE clause of the first sql statement
// which might contain a phrase like 'call '
if (isset($analyzed_sql[0]['queryflags']['is_procedure'])
&& empty($analyzed_sql[0]['where_clause'])
) {
$is_procedure = true;
} else {
$is_procedure = false;
}
// aggregates all the results into one array
$analyzed_sql_results = array(
"parsed_sql" => $parsed_sql,
"analyzed_sql" => $analyzed_sql,
"reload" => $reload,
"drop_database" => $drop_database,
"is_explain" => $is_explain,
"is_delete" => $is_delete,
"is_affected" => $is_affected,
"is_replace" => $is_replace,
"is_insert" => $is_insert,
"is_maint" => $is_maint,
"is_show" => $is_show,
"is_analyse" => $is_analyse,
"is_export" => $is_export,
"is_group" => $is_group,
"is_func" => $is_func,
"is_count" => $is_count,
"is_select" => $is_select,
"is_procedure" => $is_procedure,
"is_subquery" => $is_subquery
);
// If the query is a Select, extract the db and table names and modify
// $db and $table, to have correct page headers, links and left frame.
// db and table name may be enclosed with backquotes, db is optional,
// query may contain aliases.
/**
* @todo if there are more than one table name in the Select:
* - do not extract the first table name
* - do not show a table name in the page header
* - do not display the sub-pages links)
*/
if ($is_select) {
$prev_db = $db;
if (isset($analyzed_sql[0]['table_ref'][0]['table_true_name'])) {
$table = $analyzed_sql[0]['table_ref'][0]['table_true_name'];
}
if (isset($analyzed_sql[0]['table_ref'][0]['db'])
&& /*overload*/mb_strlen($analyzed_sql[0]['table_ref'][0]['db'])
) {
$db = $analyzed_sql[0]['table_ref'][0]['db'];
} else {
$db = $prev_db;
}
// Don't change reload, if we already decided to reload in import
if (empty($reload) && empty($GLOBALS['is_ajax_request'])) {
$reload = ($db == $prev_db) ? 0 : 1;
}
}
?>
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