From creates context from table and dml.

NewConstraint returns a new Constraint.

NewParameter returns a new parameter.

ActionCreate represents a create action.

ActionDelete represents a delete action.

ActionRead represents a read action.

ActionTransaction represents a transaction action.

ActionUpdate represents an update action.

TypeNullDecimal is a type extension for mysql.TypeDecimal.

TypeNullLongLong is a type extension for mysql.TypeLongLong.

TypeNullString is a type extension for mysql.TypeString.

WildCard is a wildcard column.

ByItem represents an order-by or group-by item.

Clause represents a where clause, having clause.

Column represents a column in a table.

ColumnOption is a column option.

Comment represents a sql comment.

Constraint is a struct that contains the constraints of a table.

Context is sql table and query context.

DDL represents a DDL statement.

DeleteStmt represents a delete statement.

DXL describes ddl and dml.

Field represents a select filed.

InsertStmt represents a insert statement.

Limit represents a limit clause.

SelectStmt represents a select statement.

Table represents a table in the database.

UpdateStmt represents a update statement.

DML represents a DML statement.

Action represents an action.

ByItems returns the by items.

OP is opcode type.

Type is the type of the column.