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SqlExpression()

Root class of SQL expressions or statements.

SQL expressions are tree structures, and can be regarded as SQL abstract syntax trees (AST).

Subclasses must satisfy the following rules:

Must be data class, providing common abilities such as destruction, copy function, equals function, etc.
Must be immutable, any modify operation should return a new expression instance.

To visit or modify expression trees, use SqlExpressionVisitor.

To format expressions as executable SQL strings, use SqlFormatter.

See Also

SqlExpressionVisitor