WebMar 10, 2016 · 2 Answers Sorted by: 5 Most likely you hit a locking issue. First thing to check is pg_locks - it would show you the current locks on the table. I bet your table is locked by some process, this is why truncate and drop table is hanging. Find the blocking query and terminate it, then you would be able to easily drop/truncate target table. WebTo maintain access to Hadoop data in Greenplum 6, you must migrate your gphdfs external tables to use the Greenplum Platform Extension Framework (PXF). This …
postgresql - Permission denied for relation - Stack Overflow
WebMar 14, 2024 · MySQL 的 GRANT 命令用于授权用户访问数据库或执行特定操作。GRANT 命令的语法如下: GRANT privileges ON database.table TO user@host IDENTIFIED BY 'password'; 其中,privileges 表示授权的权限,可以是 SELECT、INSERT、UPDATE、DELETE 等;database.table 表示授权的数据库和表名;user@host 表示授权的用户和主 … WebFeb 9, 2024 · In the SQL standard, WITH HIERARCHY OPTION is a separate (sub-)privilege allowing certain operations on table inheritance hierarchies. In PostgreSQL, … joy of having a baby
Example: Reading From and Writing to a PostgreSQL Table
WebApr 10, 2024 · The user invoking the hdfs dfs command must have read privileges on the HDFS data store to list and view directory and file contents, ... You must provide the profile name when you specify the pxf protocol in a CREATE EXTERNAL TABLE command to create a Greenplum Database external table that references a Hadoop file or directory, … WebThe Greenplum gpload utility loads data using readable external tables and the Greenplum parallel file server ( gpfdist or gpfdists ). It handles parallel file-based external table setup and allows users to configure their data format, external table definition, and gpfdist or gpfdists setup in a single configuration file. WebApr 7, 2024 · Gphdfs external tables. The source installation contains gphdfs external tables. Gphdfs was deprecated in Greenplum 5 and removed in Greenplum 6 and the recommendation is to use PXF. Resolution: Run gpupgrade initialize and apply the initialize data migration SQL script gphdfs_external_tables when prompted. Users assigned the … how to make a macaroni casserole