odps:tldr:6dd9a

The command "show partitions ${table_name};" is a SQL command used to retrieve the list of partitions of a specific table in a database.

Here's a breakdown of the command:

• "show partitions" - This is the SQL statement used to fetch information about the partitions.
• "${table_name}" - This is a placeholder that should be replaced with the actual name of the table you want to see the partitions for. The dollar sign and curly braces typically indicate a variable or placeholder that will be substituted with a value.

When executed, this command will return a result set that displays the partition details of the specified table. The information can include the partition names, their corresponding partition values or ranges, as well as any other relevant information about each partition.

The command is commonly used in databases that support partitioning, which is a technique used to divide a large table into smaller, more manageable parts.