[IMPALA-10958] Decouple getConstraintsInformation from hive.ql.metadata.Table

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 4.1.0
• Component/s: Frontend
• Epic Color: ghx-label-8
• Assignee: Yu-Wen Lai
• Reporter: Yu-Wen Lai
• Created: 08/Oct/21 23:42
• Updated: 14/Mar/22 23:43
• Resolved: 14/Mar/22 23:43

Description

After HIVE-22782, ql.metadata.Table object has no methods to set PrimaryKeyInfo and ForeignKeyInfo alone. However, we call these two functions In DescribeResultFactory to set constraints and pass the table into HiveMetadataFormatUtils. Instead of calling the methods from table, we can directly pass PrimaryKeyInfo and ForeignKeyInfo to HiveMetadataFormatUtils so that Impala won't be influenced even though the table class changes interface.

Additionally, we can get rid of ql.metadata.Table for getTableInformation altogether since it just needs metastore.api.Table internally.