New execution model for rates

Author: dnhatn

x-pack/plugin/esql/compute/build.gradle

@@ -632,22 +632,17 @@ tasks.named('stringTemplates').configure {
   template {
     it.properties = intProperties
     it.inputFile = rateAggregatorInputFile
-    it.outputFile = "org/elasticsearch/compute/aggregation/RateIntAggregator.java"
+    it.outputFile = "org/elasticsearch/compute/aggregation/OldRateIntAggregator.java"
   }
   template {
     it.properties = longProperties
     it.inputFile = rateAggregatorInputFile
-    it.outputFile = "org/elasticsearch/compute/aggregation/RateLongAggregator.java"
-  }
-  template {
-    it.properties = floatProperties
-    it.inputFile = rateAggregatorInputFile
-    it.outputFile = "org/elasticsearch/compute/aggregation/RateFloatAggregator.java"
+    it.outputFile = "org/elasticsearch/compute/aggregation/OldRateLongAggregator.java"
   }
   template {
     it.properties = doubleProperties
     it.inputFile = rateAggregatorInputFile
-    it.outputFile = "org/elasticsearch/compute/aggregation/RateDoubleAggregator.java"
+    it.outputFile = "org/elasticsearch/compute/aggregation/OldRateDoubleAggregator.java"
   }
 
   File stdDevAggregatorInputFile = file("src/main/java/org/elasticsearch/compute/aggregation/X-StdDevAggregator.java.st")