Beyyes opened a new pull request, #11610:
URL: https://github.com/apache/iotdb/pull/11610

   ## Description
   
   
   Before fix, the explain result of below sql list is empty.
   
   `
   CREATE database root.sg2;
   CREATE schema template t2 aligned (s1 FLOAT encoding=RLE, s2 BOOLEAN 
encoding=PLAIN compression=SNAPPY, s3 INT32);
   SET SCHEMA TEMPLATE t2 to root.sg2;
   INSERT INTO root.sg2.d1(timestamp,s1,s2,s3) values(1,1.1,false,1), 
(2,2.2,false,2);
   INSERT INTO root.sg2.d2(timestamp,s1,s2,s3) values(1,11.1,false,11), 
(2,22.2,false,22);
   INSERT INTO root.sg2.d3(timestamp,s1,s2,s3) values(1,111.1,true,null), 
(4,444.4,true,44);
   INSERT INTO root.sg2.d4(timestamp,s1,s2,s3) values(1,1111.1,true,1111), 
(5,5555.5,false,5555);
   SELECT * FROM root.sg2.** ALIGN BY DEVICE;
   
   `


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