Indhumathi27 commented on code in PR #4257:
URL: https://github.com/apache/carbondata/pull/4257#discussion_r845058254
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integration/spark/src/main/scala/org/apache/spark/sql/execution/command/view/CarbonCreateMVCommand.scala:
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@@ -143,9 +143,24 @@ case class CarbonCreateMVCommand(
tableIdentifier: TableIdentifier,
viewManager: MVManagerInSpark,
viewCatalog: MVCatalogInSpark): MVSchema = {
- val logicalPlan = MVHelper.dropDummyFunction(
+ var logicalPlan = MVHelper.dropDummyFunction(
MVQueryParser.getQueryPlan(queryString, session))
- // check if mv with same query already exists
+ val relatedTables = getRelatedTables(logicalPlan)
+ val viewRefreshMode = if (checkIsQueryNeedFullRefresh(logicalPlan) ||
+ checkIsHasNonCarbonTable(relatedTables)) {
+ MVProperty.REFRESH_MODE_FULL
+ } else {
+ MVProperty.REFRESH_MODE_INCREMENTAL
+ }
+ var modifiedQueryString = queryString
+ if (viewRefreshMode.equalsIgnoreCase(MVProperty.REFRESH_MODE_INCREMENTAL)
&&
+ queryString.toLowerCase.contains(CarbonCommonConstants.AVERAGE)) {
Review Comment:
please check from the logical plan, instead of string, as column names also
can contain avg keyword
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integration/spark/src/main/scala/org/apache/spark/sql/parser/MVQueryParser.scala:
##########
@@ -103,6 +104,43 @@ object MVQueryParser {
.drop(MVFunctions.DUMMY_FUNCTION)
}
+ // In the mv query string, check if avg of column is present and
+ // replace it with sum and count of same column.
+ // Check for duplicates and replace column if its not present already.
+ def checkForAvgAndModifySql(sql: String): String = {
+ val (avg, sum, count) = (CarbonCommonConstants.AVERAGE,
+ CarbonCommonConstants.SUM, CarbonCommonConstants.COUNT)
+ var modifiedSql: String = sql.toLowerCase
+ if (modifiedSql.contains(avg)) {
Review Comment:
this check can be removed, as the condition is already checked in the caller
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