How to implement multiple filtering articles for custom fields by wordpress

how does wordpress implement custom field multiple filtering articles? are there any plug-ins available, such as http://www.hanying55.com/dian.

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Aug.09,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-7b557e-29991.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-7b557e-29991.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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