Cache table permission check

Author: david-zlai

spark/src/main/scala/ai/chronon/spark/TableUtils.scala

@@ -264,11 +264,12 @@ class TableUtils(@transient val sparkSession: SparkSession) extends Serializable
     try {
       // retrieve one row from the table
       val partitionFilter = lastAvailablePartition(tableName).getOrElse(fallbackPartition)
-      sparkSession.read
+      val df = sparkSession.read
         .load(DataPointer.from(tableName, sparkSession))
         .where(s"$partitionColumn='$partitionFilter'")
         .limit(1)
-        .collect()
+      df.cache
+      df.collect()
       true
     } catch {
       case e: SparkException =>