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      Help Center/ Data Warehouse Service/ FAQs/ Database Use
      Updated on 2026-08-21 GMT+08:00
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      Database Use

      • How Do I Adjust DWS Distribution Columns?
      • How Do I View and Set the Character Set Encoding Format of a DWS Database?
      • How Do I Do If a Field of the Date Type Is Automatically Converted to a Timestamp Type During Table Creation in DWS?
      • Do I Need to Run VACUUM FULL and ANALYZE on Common Tables Periodically in DWS?
      • How Do I Export a DWS Table Schema?
      • Does DWS Provide an Efficient Way to Delete Table Data?
      • How Do I View DWS Foreign Table Information?
      • How Will Data Be Stored in a DWS Table If No Distribution Column Is Specified During Its Creation?
      • How Do I Replace the Null Results with 0 in a DWS Join Query?
      • How Do I Check Whether a DWS Table Is Row-Stored or Column-Stored?
      • How Do I Query DWS Column-Store Table Information?
      • Why Is the Index Invalid During DWS Query?
      • How Do I Use a User-Defined DWS Function to Rewrite the CRC32() Function?
      • What Is a DWS Schema Starting with pg_toast_temp* or pg_temp*?
      • Solutions to Inconsistent DWS Query Results
      • Which System Catalogs in DWS Cannot Undergo the VACUUM FULL Operation?
      • In Which Scenarios Will a DWS Statement Be in the "idle in transaction" State?
      • How Does DWS Implement Row-to-Column and Column-to-Row Conversion?
      • What Are the Differences Between DWS Unique Constraints and Unique Indexes?
      • What Are the Differences Between DWS Functions and Stored Procedures?
      • How Do I Delete Duplicate Table Data from DWS?

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      2025-08-11
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