DESCRIBE ONLINE FEATURE TABLE¶

Describes the columns in an online feature table.

DESCRIBE can be abbreviated to DESC.

See also:: CREATE ONLINE FEATURE TABLE , ALTER ONLINE FEATURE TABLE, DROP ONLINE FEATURE TABLE , SHOW ONLINE FEATURE TABLES

Syntax¶

{ DESC | DESCRIBE } ONLINE FEATURE TABLE <name>

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Parameters¶

name

Specifies the identifier for the online feature table to describe.

If the identifier contains spaces or special characters, the entire string must be enclosed in double quotes. Identifiers enclosed in double quotes are also case-sensitive.

For more information, see 識別子の要件.

Access control requirements¶

Privilege	Object	Notes
MONITOR	Online feature table	Role that has the MONITOR privilege on the online feature table.

For instructions on creating a custom role with a specified set of privileges, see カスタムロールの作成.

For general information about roles and privilege grants for performing SQL actions on securable objects, see アクセス制御の概要.

Usage notes¶

To post-process the output of this command, you can use the pipe operator (->>) or the RESULT_SCAN function. Both constructs treat the output as a result set that you can query.

For example, you can use the pipe operator or RESULT_SCAN function to select specific columns from the SHOW command output or filter the rows.

When you refer to the output columns, use double-quoted identifiers for the column names. For example, to select the output column type, specify SELECT "type".

You must use double-quoted identifiers because the output column names for SHOW commands are in lowercase. The double quotes ensure that the column names in the SELECT list or WHERE clause match the column names in the SHOW command output that was scanned.