Upgrade DF46 (#48)

Author: xudong963

.gitignore

@@ -23,3 +23,5 @@ Cargo.lock
 # Added by cargo
 
 /target
+
+.idea

Cargo.toml

@@ -32,15 +32,15 @@ arrow = "54"
 arrow-schema = "54"
 async-trait = "0.1"
 dashmap = "6"
-datafusion = "45"
-datafusion-common = "45"
-datafusion-expr = "45"
-datafusion-functions = "45"
-datafusion-functions-aggregate = "45"
-datafusion-optimizer = "45"
-datafusion-physical-expr = "45"
-datafusion-physical-plan = "45"
-datafusion-sql = "45"
+datafusion = "46"
+datafusion-common = "46"
+datafusion-expr = "46"
+datafusion-functions = "46"
+datafusion-functions-aggregate = "46"
+datafusion-optimizer = "46"
+datafusion-physical-expr = "46"
+datafusion-physical-plan = "46"
+datafusion-sql = "46"
 futures = "0.3"
 itertools = "0.13"
 log = "0.4"