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Each row in the SYSIDXCOL system view describes one column of an index described in the SYSIDX system view. The underlying system table for this view is ISYSIDXCOL.
|Column name||Data type||Description|
|table_id||UNSIGNED INT||Identifies the table to which the index applies.|
|index_id||UNSIGNED INT||Identifies the index to which the column applies. Together, table_id and index_id identify one index described in the SYSIDX system view.|
|sequence||SMALLINT||Each column in an index is assigned a unique number starting at 0. The order of these numbers determines the relative significance of the columns in the index. The most important column has sequence number 0.|
|column_id||UNSIGNED INT||Identifies which column of the table is indexed. Together, table_id and column_id identify one column described in the SYSCOLUMN system view.|
|"order"||CHAR(1)||Indicates whether the column in the index is kept in ascending(A) or descending(D) order. This value is NULL for text indexes.|
|primary_column_id||UNSIGNED INT||The ID of the primary key column that corresponds to this foreign key column. The value is NULL for non foreign key columns.|
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