pub struct Merge {
    pub merge_token: AttachedToken,
    pub optimizer_hint: Option<OptimizerHint>,
    pub into: bool,
    pub table: TableFactor,
    pub source: TableFactor,
    pub on: Box<Expr>,
    pub clauses: Vec<MergeClause>,
    pub output: Option<OutputClause>,
}

The MERGE token that starts the statement.

optional INTO keyword

Specifies the table to merge

Specifies the table or subquery to join with the target table

Specifies the expression on which to join the target table and source

Specifies the actions to perform when values match or do not match.

Specifies the output to save changes in MSSQL