public Optional < ColumnDefinitionSegment > findColumnDefinition ( final String columnName , final ShardingTableMetaData shardingTableMetaData ) { Optional < ColumnDefinitionSegment > result = findColumnDefinitionFromMetaData ( columnName , shardingTableMetaData ) ; return result . isPresent ( ) ? result : findColumnDefinitionFromCurrentAddClause ( columnName ) ; }
Find column definition .