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From ravipesala <...@git.apache.org>
Subject [GitHub] carbondata pull request #1425: [WIP]Thrift Changes to support Pre-aggregate
Date Mon, 23 Oct 2017 04:09:15 GMT
Github user ravipesala commented on a diff in the pull request:

    https://github.com/apache/carbondata/pull/1425#discussion_r146163472
  
    --- Diff: format/src/main/thrift/schema.thrift ---
    @@ -165,9 +165,46 @@ struct TableSchema{
       4: optional map<string,string> tableProperties; // Table properties configured
by the user
       5: optional BucketingInfo bucketingInfo; // Bucketing information
       6: optional PartitionInfo partitionInfo; // Partition information
    +  7: optional list<ColumnRelation> columnRelationList;
     }
     
    +struct RelationIdentifier {
    +   1: optional string databaseName;
    +   2: required string tableName;
    +   3: required string tableId;
    +}
    +
    +struct ColumnRelation{
    +   // child column id
    +   1: required string columnId;
    +   2: optional list<ParentColumnTableRelation> columnTableRelation;
    +}
    +
    +struct ParentColumnTableRelation {
    +   1: required RelationIdentifier relationInfo;
    +   2: required string columnId;
    +   3: required string columnName
    +}
    +
    +enum RelationType {
    +  AGGREGATION = 0;
    +}
    +struct RelationProperties {
    +  1: optional RelationType relationTypes;
    +  // to maintain properties like select query, query type like groupby, join
    +  2: optional map<string, string> properties;
    +}
    +
    +struct ChildSchema {
    +  1: required RelationIdentifier relationInfo;
    +  2: required TableSchema childTableSchema;
    +  3: optional RelationProperties relationProperties;
    +}
     struct TableInfo{
     	1: required TableSchema fact_table;
     	2: required list<TableSchema> aggregate_table_list;
    +	3: optional list<ChildSchema> childSchemas; // childSchema information
    + // only in case of child table it will be filled to maintain the relation with parent
tables
    +   // to hanle operation like drop in that case parent table will be also updated
    +  4: optional list<RelationIdentifier> parentRelationInfo;
    --- End diff --
    
    not required again


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