Extracting consts

Author: pdelewski

platform/frontend_connectors/physical_functions.go

@@ -6,6 +6,8 @@ const (
 	CLickhouseDateHourFunction           = "toHour"
 	ClickhouseFromUnixTimeFunction64mili = "fromUnixTimestamp64Milli"
 	ClickhouseFromUnixTimeFunction       = "fromUnixTimestamp"
+	ClickhouseToTimezone                 = "toTimezone"
+	ClickhousetoUnixTimestamp64Milli     = "toUnixTimestamp64Milli"
 	DorisDateHourFunction                = "HOUR"
 	DorisFromUnixTimeFunction            = "FROM_UNIXTIME"
 	DorisFromUnixTimeFunction64mili      = "FROM_MILLISECOND"

platform/frontend_connectors/schema_transformer.go

@@ -1109,16 +1109,16 @@ func (s *SchemaCheckPass) acceptIntsAsTimestamps(indexSchema schema.Schema, quer
 	}
 
 	visitor.OverrideVisitFunction = func(b *model.BaseExprVisitor, f model.FunctionExpr) interface{} {
-		if f.Name == "toUnixTimestamp64Milli" && len(f.Args) == 1 {
+		if f.Name == ClickhousetoUnixTimestamp64Milli && len(f.Args) == 1 {
 			if col, ok := model.ExtractColRef(f.Args[0]); ok && table.IsInt(col.ColumnName) {
 				// erases toUnixTimestamp64Milli
 				return f.Args[0]
 			}
 		}
-		if f.Name == "toTimezone" && len(f.Args) == 2 {
+		if f.Name == ClickhouseFromUnixTimeFunction64mili && len(f.Args) == 2 {
 			if col, ok := model.ExtractColRef(f.Args[0]); ok && table.IsInt(col.ColumnName) {
 				// adds fromUnixTimestamp64Milli
-				return model.NewFunction("toTimezone", model.NewFunction(model.FromUnixTimeFunction64mili, f.Args[0]), f.Args[1])
+				return model.NewFunction(ClickhouseToTimezone, model.NewFunction(ClickhouseFromUnixTimeFunction64mili, f.Args[0]), f.Args[1])
 			}
 		}
 		return visitFunction(b, f)