EXEC SQL [AT { db_name | :host_variable }] 
 [FOR { :host_integer | integer }]
 INSERT INTO 
 [ (subquery) 
 | [schema.] { table | view } 
   [ @db_link | PARTITION (part_name) ]
 ]
 [(column) [, (column)]...] 
 { VALUES (expr [, expr]...) | subquery }
 [DML.RETURNING.CLAUSE]

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