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[ticket/16902] Improve test, use DISTINCT for precise results count

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PHPBB3-16902
This commit is contained in:
rxu
2021-10-30 13:07:36 +07:00
parent f78f3135fc
commit 5a69fc22b4
3 changed files with 33 additions and 13 deletions
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12
phpBB/phpbb/search/backend/fulltext_mysql.php
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@@ -509,6 +509,7 @@ class fulltext_mysql extends base implements search_backend_interface
extract($this->phpbb_dispatcher->trigger_event('core.search_mysql_keywords_main_query_before', compact($vars)));
$sql_select = ($type == 'posts') ? 'p.post_id' : 'DISTINCT t.topic_id';
$sql_select .= $sort_by_sql[$sort_key] ? ", {$sort_by_sql[$sort_key]}" : '';
$sql_from = ($join_topic) ? TOPICS_TABLE . ' t, ' : '';
$field = ($type == 'posts') ? 'post_id' : 'topic_id';
if (count($author_ary) && $author_name)
@@ -549,11 +550,10 @@ class fulltext_mysql extends base implements search_backend_interface
$this->db->sql_freeresult($result);
$id_ary = array_unique($id_ary);
// if the total result count is not cached yet, retrieve it from the db
if (!$result_count && count($id_ary))
{
$sql_found_rows = str_replace("SELECT $sql_select", "SELECT COUNT($sql_select) as result_count", $sql);
$sql_found_rows = str_replace("SELECT $sql_select", "SELECT COUNT(*) as result_count", $sql);
$result = $this->db->sql_query($sql_found_rows);
$result_count = (int) $this->db->sql_fetchfield('result_count');
$this->db->sql_freeresult($result);
@@ -752,6 +752,7 @@ class fulltext_mysql extends base implements search_backend_interface
// If the cache was completely empty count the results
$sql_select = ($type == 'posts') ? 'p.post_id' : 't.topic_id';
$sql_select .= $sort_by_sql[$sort_key] ? ", {$sort_by_sql[$sort_key]}" : '';
// Build the query for really selecting the post_ids
if ($type == 'posts')
@@ -780,7 +781,7 @@ class fulltext_mysql extends base implements search_backend_interface
AND t.topic_id = p.topic_id
$sql_sort_join
$sql_time
GROUP BY t.topic_id
GROUP BY $sql_select
ORDER BY $sql_sort";
$field = 'topic_id';
}
@@ -797,9 +798,10 @@ class fulltext_mysql extends base implements search_backend_interface
// retrieve the total result count if needed
if (!$result_count)
{
$sql_found_rows = str_replace("SELECT $sql_select", "SELECT COUNT($sql_select) as result_count", $sql);
$sql_found_rows = str_replace("SELECT $sql_select", "SELECT COUNT(*) as result_count", $sql);
$result = $this->db->sql_query($sql_found_rows);
$result_count = (int) $this->db->sql_fetchfield('result_count');
$result_count = ($type == 'posts') ? (int) $this->db->sql_fetchfield('result_count') : count($this->db->sql_fetchrowset($result));
$this->db->sql_freeresult($result);
if (!$result_count)

9
phpBB/phpbb/search/backend/fulltext_native.php
View File

@@ -939,6 +939,7 @@ class fulltext_native extends base implements search_backend_interface
$sql_array['WHERE'] = implode(' AND ', $sql_where);
$sql_array['GROUP_BY'] = ($group_by) ? (($type == 'posts') ? 'p.post_id' : 'p.topic_id') . ', ' . $sort_by_sql[$sort_key] : '';
$sql_array['ORDER_BY'] = $sql_sort;
$sql_array['SELECT'] .= $sort_by_sql[$sort_key] ? ", {$sort_by_sql[$sort_key]}" : '';
unset($sql_where, $sql_sort, $group_by);
@@ -954,7 +955,7 @@ class fulltext_native extends base implements search_backend_interface
// If using mysql and the total result count is not calculated yet, get it from the db
if (!$total_results && $is_mysql)
{
$sql_count = str_replace("SELECT {$sql_array['SELECT']}", "SELECT COUNT({$sql_array['SELECT']}) as total_results", $sql);
$sql_count = str_replace("SELECT {$sql_array['SELECT']}", "SELECT COUNT(DISTINCT {$sql_array['SELECT']}) as total_results", $sql);
$result = $this->db->sql_query($sql_count);
$total_results = (int) $this->db->sql_fetchfield('total_results');
$this->db->sql_freeresult($result);
@@ -976,7 +977,6 @@ class fulltext_native extends base implements search_backend_interface
$id_ary[] = (int) $row[(($type == 'posts') ? 'post_id' : 'topic_id')];
}
$this->db->sql_freeresult($result);
}
// store the ids, from start on then delete anything that isn't on the current page because we only need ids for one page
@@ -1092,6 +1092,7 @@ class fulltext_native extends base implements search_backend_interface
}
$select = ($type == 'posts') ? 'p.post_id' : 't.topic_id';
$select .= $sort_by_sql[$sort_key] ? ", {$sort_by_sql[$sort_key]}" : '';
$is_mysql = false;
/**
@@ -1239,9 +1240,9 @@ class fulltext_native extends base implements search_backend_interface
if (!$total_results && $is_mysql)
{
$sql_count = str_replace("SELECT $select", "SELECT COUNT($select) as total_results", $sql);
$sql_count = str_replace("SELECT $select", "SELECT COUNT(*) as total_results", $sql);
$result = $this->db->sql_query($sql_count);
$total_results = (int) $this->db->sql_fetchfield('total_results');
$total_results = ($type == 'posts') ? (int) $this->db->sql_fetchfield('total_results') : count($this->db->sql_fetchrowset($result));
$this->db->sql_freeresult($result);
if (!$total_results)