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(Retrofit from trunk) r4492 N.1065 Fix performance issues.

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Add statistics on query table join optimization.

SVN:2.4[4995]
This commit is contained in:
Pierre Goiffon
2017-10-06 14:25:49 +00:00
parent 341261c14e
commit 8df12e64f2
4 changed files with 177 additions and 4 deletions
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5
core/sqlobjectquery.class.inc.php
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@@ -36,7 +36,8 @@
class SQLObjectQuery extends SQLQuery
{
private $m_SourceOQL = '';
public $m_aContextData = null;
public $m_iOriginalTableCount = 0;
private $m_sTable = '';
private $m_sTableAlias = '';
private $m_aFields = array();
@@ -510,6 +511,7 @@ class SQLObjectQuery extends SQLQuery
public function OptimizeJoins($aUsedTables, $bTopCall = true)
{
$this->m_iOriginalTableCount = $this->CountTables();
if ($bTopCall)
{
// Top call: complete the list of tables absolutely required to perform the right query
@@ -612,4 +614,5 @@ class SQLObjectQuery extends SQLQuery
// None of the tables is in the list of required tables
return $bResult;
}
}