LiShuMing commented on a change in pull request #3631: [CARBONDATA-3696] Avoid
list db's all Tables to check table exists in the db
URL: https://github.com/apache/carbondata/pull/3631#discussion_r386956578
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File path:
integration/spark2/src/main/scala/org/apache/spark/sql/execution/command/table/CarbonCreateTableAsSelectCommand.scala
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@@ -54,8 +54,8 @@ case class CarbonCreateTableAsSelectCommand(
setAuditTable(dbName, tableName)
setAuditInfo(Map("query" -> query.simpleString))
// check if table already exists
- if (sparkSession.sessionState.catalog.listTables(dbName)
- .exists(_.table.equalsIgnoreCase(tableName))) {
+ if (!sparkSession.sessionState.catalog
+ .tableExists(TableIdentifier(tableName, Some(dbName)))) {
Review comment:
I'm sorry. It's my mistake.
What I mean is It's very bad to use `listTables` to check table's existence
instead of `tableExists`.
I've rebased and fixed this.
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