How to call WeChat Mini Programs plug-in

1, now make a date range selection, use WeChat Mini Programs"s plug-in, after the app.json reference, how to use

in the page

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I don"t know what this XXX rewrites? , not seen in the plug-in development documentation

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-64f5-1bf51ae-31f56.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bf51ae-31f56.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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