jackylk commented on a change in pull request #3634: [CARBONDATA-3720] Support
alter table scenario for new insert into flow
URL: https://github.com/apache/carbondata/pull/3634#discussion_r383388985
##########
File path:
integration/spark/src/main/scala/org/apache/spark/sql/execution/command/management/CarbonInsertIntoCommand.scala
##########
@@ -449,67 +443,48 @@ case class CarbonInsertIntoCommand(databaseNameOp:
Option[String],
}
}
- private def isAlteredSchema(tableSchema: TableSchema): Boolean = {
- if (tableInfo.getFactTable.getSchemaEvolution != null) {
- tableInfo
- .getFactTable
- .getSchemaEvolution
- .getSchemaEvolutionEntryList.asScala.exists(entry =>
- (entry.getAdded != null && entry.getAdded.size() > 0) ||
- (entry.getRemoved != null && entry.getRemoved.size() > 0)
- )
- } else {
- false
- }
- }
-
def getReArrangedIndexAndSelectedSchema(
tableInfo: TableInfo,
partitionColumnSchema: mutable.Buffer[ColumnSchema]): (Seq[Int],
Seq[ColumnSchema]) = {
var reArrangedIndex: Seq[Int] = Seq()
var selectedColumnSchema: Seq[ColumnSchema] = Seq()
- var complexChildCount: Int = 0
var partitionIndex: Seq[Int] = Seq()
- val columnSchema = tableInfo.getFactTable.getListOfColumns.asScala
+ val internalOrderColumns: util.ArrayList[CarbonColumn] = new
util.ArrayList[CarbonColumn]()
+ internalOrderColumns.addAll(table.getVisibleDimensions)
+ internalOrderColumns.addAll(table.getVisibleMeasures)
+ val columnSchema = internalOrderColumns.asScala.map(col =>
col.getColumnSchema)
val partitionColumnNames = if (partitionColumnSchema != null) {
partitionColumnSchema.map(x => x.getColumnName).toSet
} else {
null
}
- // get invisible column indexes, alter table scenarios can have it before
or after new column
- // dummy measure will have ordinal -1 and it is invisible, ignore that
column.
- // alter table old columns are just invisible columns with proper ordinal
- val invisibleIndex = columnSchema.filter(col => col.isInvisible &&
col.getSchemaOrdinal != -1)
- .map(col => col.getSchemaOrdinal)
- columnSchema.filterNot(col => col.isInvisible).foreach {
+ var createOrderColumns = table.getCreateOrderColumn.asScala
+ val createOrderMap = mutable.Map[String, Int]()
+ var createOrderPosition = 0
+ if (partitionColumnNames != null) {
+ // For alter table drop/add column scenarios, partition column may not
be in the end.
+ // Need to keep it in the end.
+ createOrderColumns = createOrderColumns.filterNot(col =>
+ partitionColumnNames.contains(col.getColumnSchema.getColumnName)) ++
+ createOrderColumns.filter(col =>
+
partitionColumnNames.contains(col.getColumnSchema.getColumnName))
+ }
+ for (col: CarbonColumn <- createOrderColumns) {
Review comment:
use foreach instead
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