Merge pull request #16740 from taosdata/szhou/2.4/fixbugs

fix: filter unit is keeped when values and nulls exist in same block

docs/examples/rust/nativeexample/Cargo.toml

@@ -6,5 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [dependencies]
 libtaos = { version = "0.4.3" }
-tokio = { version = "*", features = ["rt", "macros", "rt-multi-thread"] }
-bstr = { version = "*" }
+tokio = { version = "1", features = ["rt", "macros", "rt-multi-thread"] }
+bstr = { version = "0.2" }

src/query/src/qFilter.c

@@ -2786,6 +2786,10 @@ int32_t filterRmUnitByRange(SFilterInfo *info, SDataStatis *pDataStatis, int32_t
         info->blkUnitRes[k] = -1;
         rmUnit = 1;
         continue;
+      } else {
+        // when there are values and nulls in this block, no unit can produce all true
+        // or all false. so no unit can be removed
+        continue;
       }
     }