However, UPSERT does not let you specify columns to infer a unique constraint as an arbiter. For example, the following statements are equivalent: DO UPDATE, you can use the UPSERT statement. Rather than inferring one using a column list, which is the default behavior. ON CONSTRAINT allows you to explicitly specify an index or unique constraint for INSERT ON CONFLICT, If the values in the SET expression cause uniqueness conflicts, See the Update values ON CONFLICT and Do not update values ON CONFLICT examples. To prevent the affected rows from updating while allowing new rows to be inserted, set ON CONFLICT to DO NOTHING. To update the affected rows instead, use an ON CONFLICT clause containing the column(s) with the unique constraint and the DO UPDATE SET expression set to the column(s) to be updated (any SET expression supported by the UPDATE statement is also supported here, including those with WHERE clauses). Normally, when inserted values conflict with a UNIQUE constraint on one or more columns, CockroachDB returns an error. ON CONFLICT DO NOTHING ( name, ) ON CONSTRAINT constraint_name DO NOTHING UPDATE SET column_name = a_expr ( column_name, ) = ( select_stmt a_expr, a_expr, ) , See the Insert and Return Values example below. Return values based on rows inserted, where target_list can be specific column names from the table, * for all columns, or computations using scalar expressions. See the Insert Default Values examples below. To fill a specific column with its default value, leave the value out of the select_stmt or use DEFAULT at the appropriate position. To fill all columns with their default values, use DEFAULT VALUES in place of select_stmt. Also, if column names are listed after INTO, values must be in corresponding order otherwise, they must follow the declared order of the columns in the table. Each value must match the data type of its column. The name of a column to populate during the insert.Ī selection query. When you provide an alias, it completely hides the actual table name. WITH RECURSIVE common_table_expr, INSERT INTO table_name AS table_alias_name ( column_name, ) select_stmt DEFAULT VALUES on_conflict RETURNING target_elem, NOTHING Parameters ParameterĪn alias for the table name.
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