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专题文献的sql效率提升

This commit is contained in:
wlx 2014-05-15 16:02:23 +00:00
parent feb6fc5fc6
commit 4c03869064
1 changed files with 6 additions and 5 deletions
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9
application/module/Reference/Reference.php
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@ -221,14 +221,14 @@ class Reference
public function fetchThemeReferences($code)
{
$wheresql = array();
$wheresql[] = " s.code='$code' ";
//$wheresql[] = " s.code='$code' ";
if(!empty($this->keyword))
{
$wheresql[] = " (ref.title LIKE '%{$this->keyword}%' OR ref.reference LIKE '%{$this->keyword}%') ";
$wheresql[] = " (ref.title iLIKE '%{$this->keyword}%' OR ref.reference iLIKE '%{$this->keyword}%') ";
}
if(count($wheresql)>0)
{
$wheresql = " WHERE ".join(" AND ",$wheresql);
$wheresql = " and ".join(" AND ",$wheresql);
}else{
$wheresql = "";
}
@ -240,8 +240,9 @@ class Reference
$order = "ref.{$this->order} {$this->sort}";
}
$sql="select distinct ref.* from mdref r left join {$this->table->reference} ref on r.refid=ref.id
$sql="select distinct ref.* from {$this->table->reference} ref where ref.id in (select r.refid from mdref r
left join datasource ds on r.uuid=ds.uuid left join {$this->table->source} s on s.id=ds.sourceid
where s.code='$code')
$wheresql
ORDER BY $order";
$rs=$this->db->query($sql);