Github user jackylk commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2103#discussion_r179950297
--- Diff:
integration/spark2/src/main/spark2.2/org/apache/spark/sql/hive/CarbonSessionStateWithoutHive.scala
---
@@ -0,0 +1,253 @@
+package org.apache.spark.sql.hive
+
+import org.apache.hadoop.conf.Configuration
+import org.apache.hadoop.fs.Path
+import org.apache.spark.sql.catalyst.TableIdentifier
+import org.apache.spark.sql.catalyst.analysis.{Analyzer, FunctionRegistry}
+import org.apache.spark.sql.catalyst.catalog._
+import org.apache.spark.sql.catalyst.expressions.Expression
+import org.apache.spark.sql.catalyst.optimizer.Optimizer
+import org.apache.spark.sql.catalyst.parser.ParserInterface
+import org.apache.spark.sql.catalyst.plans.logical.{LogicalPlan,
SubqueryAlias}
+import org.apache.spark.sql.catalyst.rules.Rule
+import org.apache.spark.sql.execution.command.{AlterTableVo, TableRenameVo}
+import org.apache.spark.sql.execution.datasources._
+import org.apache.spark.sql.execution.strategy.{CarbonLateDecodeStrategy,
DDLStrategy, StreamingTableStrategy}
+import org.apache.spark.sql.internal.{SQLConf, SessionResourceLoader,
SessionState, SessionStateBuilder}
+import org.apache.spark.sql.optimizer.{CarbonIUDRule,
CarbonLateDecodeRule, CarbonUDFTransformRule}
+import org.apache.spark.sql.parser.CarbonSparkSqlParser
+import org.apache.spark.sql.types.{StructField, StructType}
+import org.apache.spark.sql.{CarbonDatasourceHadoopRelation, CarbonEnv,
SparkSession}
+import org.apache.spark.util.CarbonReflectionUtils
+
+import org.apache.carbondata.core.util.CarbonUtil
+import org.apache.carbondata.core.util.path.CarbonTablePath
+import org.apache.carbondata.format.TableInfo
+import org.apache.carbondata.spark.util.CarbonScalaUtil
+
+/**
+ * This class will have carbon catalog and refresh the relation from cache
if the carbontable in
+ * carbon catalog is not same as cached carbon relation's carbon table
+ *
+ * @param externalCatalog
+ * @param globalTempViewManager
+ * @param sparkSession
+ * @param functionResourceLoader
+ * @param functionRegistry
+ * @param conf
+ * @param hadoopConf
+ */
+class CarbonInMemorySessionCatalog(
--- End diff --
I think you can name it `InMemorySessionCatalog` and change the file name
also
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