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key_column_usage

Overview​

This table is solely for compatibility with MySQL behavior. It is always empty.

Database​

information_schema

Table Information​

Column NameTypeDescription
CONSTRAINT_CATALOGvarchar(64)
CONSTRAINT_SCHEMAvarchar(64)
CONSTRAINT_NAMEvarchar(64)
TABLE_CATALOGvarchar(64)
TABLE_SCHEMAvarchar(64)
TABLE_NAMEvarchar(64)
COLUMN_NAMEvarchar(64)
ORDINAL_POSITIONbigint
POSITION_IN_UNIQUE_CONSTRAINTbigint
REFERENCED_TABLE_SCHEMAvarchar(64)
REFERENCED_TABLE_NAMEvarchar(64)
REFERENCED_COLUMN_NAMEvarchar(64)