github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/docs/generated/sql/bnf/drop_constraint.bnf (about)

     1  alter_onetable_stmt ::=
     2  	'ALTER' 'TABLE' table_name 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' name 'CASCADE'
     3  	| 'ALTER' 'TABLE' table_name 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' name 'RESTRICT'
     4  	| 'ALTER' 'TABLE' table_name 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' name 
     5  	| 'ALTER' 'TABLE' table_name 'DROP' 'CONSTRAINT' name 'CASCADE'
     6  	| 'ALTER' 'TABLE' table_name 'DROP' 'CONSTRAINT' name 'RESTRICT'
     7  	| 'ALTER' 'TABLE' table_name 'DROP' 'CONSTRAINT' name 
     8  	| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' name 'CASCADE'
     9  	| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' name 'RESTRICT'
    10  	| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' name 
    11  	| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'DROP' 'CONSTRAINT' name 'CASCADE'
    12  	| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'DROP' 'CONSTRAINT' name 'RESTRICT'
    13  	| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'DROP' 'CONSTRAINT' name