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优化sql

This commit is contained in:
wlx 2014-03-20 18:59:19 +00:00
parent 2e568a7cab
commit dd87964ad7
2 changed files with 4 additions and 4 deletions
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4
vendor/Westdc/MetadataSync/Plugin/Qinghaihu.php vendored
View File

@ -88,10 +88,10 @@ class Qinghaihu implements SyncPluginInterface
{ {
if(!empty($this->last_sync)) if(!empty($this->last_sync))
{ {
$sql = "SELECT x.* FROM xml x"; $sql = "SELECT x.* FROM xml x where x.id in (select id from normalmetadata)";
}else{ }else{
$sql = "SELECT x.* FROM xml x $sql = "SELECT x.* FROM xml x
LEFT JOIN metadata m ON x.id=m.id LEFT JOIN normalmetadata m ON x.id=m.id
WHERE m.ts_created > '{$this->last_sync}'"; WHERE m.ts_created > '{$this->last_sync}'";
} }
$rs = $this->db->query($sql); $rs = $this->db->query($sql);

4
vendor/Westdc/MetadataSync/Plugin/Sanjiangyuan.php vendored
View File

@ -90,8 +90,8 @@ class Sanjiangyuan implements SyncPluginInterface
$sql = "SELECT * FROM xml where id in (select id from normalmetadata)"; $sql = "SELECT * FROM xml where id in (select id from normalmetadata)";
}else{ }else{
$sql = "SELECT x.* FROM xml x $sql = "SELECT x.* FROM xml x
LEFT JOIN metadata m ON x.id=m.id LEFT JOIN normalmetadata m ON x.id=m.id
WHERE m.ts_created > '{$this->last_sync}' AND m.id in (select id from normalmetadata)"; WHERE m.ts_created > '{$this->last_sync}'";
} }
$sql = "SELECT * FROM xml where id in (select id from normalmetadata)"; $sql = "SELECT * FROM xml where id in (select id from normalmetadata)";
$rs = $this->db->query($sql); $rs = $this->db->query($sql);