[GitHub] [incubator-iotdb] yuqi1129 commented on pull request #902: [IOTDB-28] Calcite Integration for IoTDB

[GitBox <gi...@apache.org>]

yuqi1129 commented on pull request #902:
URL: https://github.com/apache/incubator-iotdb/pull/902#issuecomment-691814857


     @Test
     public void testFilter7() {
       CalciteAssert.that()
           .with(MODEL)
           .with("UnQuotedCasing", IoTDBConstant.UnQuotedCasing)
           .query("select * from \"root.vehicle\" " +
               "where (device = 'root.vehicle.d0' AND \"time\" <= 1) OR s2 = 2.22 and 1 = 1")
           .returns("time=1; device=root.vehicle.d0; s0=101; s1=1101; s2=null; s3=null; s4=null\n" +
               "time=2; device=root.vehicle.d0; s0=10000; s1=40000; s2=2.22; s3=null; s4=null\n" +
               "time=2222; device=root.vehicle.d1; s0=null; s1=null; s2=2.22; s3=null; s4=null\n")
           .explainContains("PLAN=IoTDBToEnumerableConverter\n" +
               "  IoTDBFilter(condition=[OR(AND(=($1, 'root.vehicle.d0'), <=($0, 1)), =(CAST($4):DOUBLE NOT NULL, 2.22))])\n" +
               "    IoTDBTableScan(table=[[IoTDBSchema, root.vehicle]])");
     }
   
   Should add rules to reduce constant value 
   
   like where 1 = 1 and a = 1 should be folded as where a = 1, see above


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