diff --git a/.github/workflows/snapshot-publish.yml b/.github/workflows/snapshot-publish.yml
index 7dae546b3..6025a3b02 100644
--- a/.github/workflows/snapshot-publish.yml
+++ b/.github/workflows/snapshot-publish.yml
@@ -29,6 +29,7 @@ jobs:
       - name: Publish to Local Maven
         run: |
           sbt standaloneCosmetic/publishM2
+          sbt sparkPPLCosmetic/publishM2
           sbt sparkSqlApplicationCosmetic/publishM2
 
       - uses: actions/checkout@v3
diff --git a/build.sbt b/build.sbt
index 6b7c8d53a..ad1f5de2f 100644
--- a/build.sbt
+++ b/build.sbt
@@ -61,13 +61,16 @@ lazy val flintCore = (project in file("flint-core"))
         exclude ("com.fasterxml.jackson.core", "jackson-databind")),
     publish / skip := true)
 
-lazy val pplSparkIntegration = (project in file("ppl-spark-integration"))
+lazy val flintSparkIntegration = (project in file("flint-spark-integration"))
+  .dependsOn(flintCore)
   .enablePlugins(AssemblyPlugin, Antlr4Plugin)
   .settings(
     commonSettings,
-    name := "ppl-spark-integration",
+    name := "flint-spark-integration",
     scalaVersion := scala212,
     libraryDependencies ++= Seq(
+      "com.amazonaws" % "aws-java-sdk" % "1.12.397" % "provided"
+        exclude ("com.fasterxml.jackson.core", "jackson-databind"),
       "org.scalactic" %% "scalactic" % "3.2.15" % "test",
       "org.scalatest" %% "scalatest" % "3.2.15" % "test",
       "org.scalatest" %% "scalatest-flatspec" % "3.2.15" % "test",
@@ -77,7 +80,7 @@ lazy val pplSparkIntegration = (project in file("ppl-spark-integration"))
     libraryDependencies ++= deps(sparkVersion),
     // ANTLR settings
     Antlr4 / antlr4Version := "4.8",
-    Antlr4 / antlr4PackageName := Some("org.opensearch.flint.spark.ppl"),
+    Antlr4 / antlr4PackageName := Some("org.opensearch.flint.spark.sql"),
     Antlr4 / antlr4GenListener := true,
     Antlr4 / antlr4GenVisitor := true,
     // Assembly settings
@@ -97,16 +100,14 @@ lazy val pplSparkIntegration = (project in file("ppl-spark-integration"))
     },
     assembly / test := (Test / test).value)
 
-lazy val flintSparkIntegration = (project in file("flint-spark-integration"))
-  .dependsOn(flintCore)
+lazy val pplSparkIntegration = (project in file("ppl-spark-integration"))
   .enablePlugins(AssemblyPlugin, Antlr4Plugin)
+  .dependsOn(flintSparkIntegration)
   .settings(
     commonSettings,
-    name := "flint-spark-integration",
+    name := "ppl-spark-integration",
     scalaVersion := scala212,
     libraryDependencies ++= Seq(
-      "com.amazonaws" % "aws-java-sdk" % "1.12.397" % "provided"
-        exclude ("com.fasterxml.jackson.core", "jackson-databind"),
       "org.scalactic" %% "scalactic" % "3.2.15" % "test",
       "org.scalatest" %% "scalatest" % "3.2.15" % "test",
       "org.scalatest" %% "scalatest-flatspec" % "3.2.15" % "test",
@@ -116,7 +117,7 @@ lazy val flintSparkIntegration = (project in file("flint-spark-integration"))
     libraryDependencies ++= deps(sparkVersion),
     // ANTLR settings
     Antlr4 / antlr4Version := "4.8",
-    Antlr4 / antlr4PackageName := Some("org.opensearch.flint.spark.sql"),
+    Antlr4 / antlr4PackageName := Some("org.opensearch.flint.spark.ppl"),
     Antlr4 / antlr4GenListener := true,
     Antlr4 / antlr4GenVisitor := true,
     // Assembly settings
diff --git a/ppl-spark-integration/src/main/scala/org/opensearch/flint/spark/FlintPPLSparkExtensions.scala b/ppl-spark-integration/src/main/scala/org/opensearch/flint/spark/FlintPPLSparkExtensions.scala
index 26ad4b69b..3379048a2 100644
--- a/ppl-spark-integration/src/main/scala/org/opensearch/flint/spark/FlintPPLSparkExtensions.scala
+++ b/ppl-spark-integration/src/main/scala/org/opensearch/flint/spark/FlintPPLSparkExtensions.scala
@@ -5,6 +5,7 @@
 
 package org.opensearch.flint.spark
 
+import org.opensearch.flint.spark.function.TumbleFunction
 import org.opensearch.flint.spark.ppl.FlintSparkPPLParser
 
 import org.apache.spark.sql.SparkSessionExtensions
@@ -18,5 +19,11 @@ class FlintPPLSparkExtensions extends (SparkSessionExtensions => Unit) {
     extensions.injectParser { (spark, parser) =>
       new FlintSparkPPLParser(parser)
     }
+
+    extensions.injectFunction(TumbleFunction.description)
+
+    extensions.injectOptimizerRule { spark =>
+      new FlintSparkOptimizer(spark)
+    }
   }
 }