Structure
SQLNestedSubpathExpression
A “nested subpath” expression is used to descend into the “deeper” structure of a non-scalar value, such as a dictionary, array, or JSON value.
struct SQLNestedSubpathExpressionOverview
This expression is effectively an API for nestedSubpathExpression(in:for:), which is defined as providing an expression for descending specifically into JSON values only. As a result, the more “general” usage of applying a nested subpath to any non-scalar value is not available via this interface.
Topics
Initializers
init(column:path:)Create a nested subpath from an identifier string and an array of one or more path elements.
Instance Properties
var column: any SQLExpressionThe expression to which the nested subpath is applied.var path: [String]The subpath itself. Must always contain at least one element.
Instance Methods
func serialize(to: inout SQLSerializer)Invoked when a request is made to serialize the expression to raw SQL.
Relationships
Conforms To
SQLExpressionSwift.SendableSwift.SendableMetatype
See Also
Basic Expressions
struct SQLAliasEncapsulates SQL’s<expression> [AS] <name>syntax, most often used to declare aliaed names for columns and tables.struct SQLBetweenAnSQLExpressionwhich constructs SQL of the form<operand> BETWEEN <lowerBound> AND <upperBound>.struct SQLColumnAn expression representing an optionally table-qualified column in an SQL table.struct SQLConstraintAn expression representing the combination of a constraint name and algorithm for table constraints.enum SQLDataTypeRepresents a value’s type in SQL.enum SQLDirectionDescribes an ordering direction for a given sorting key.struct SQLDistinctAn expression representing the subexpression of an aggregate function call which specifies whether the aggregate groups over all result rows or only distinct rows.enum SQLForeignKeyActionAn expression specifying a behavior for a foreign key constraint violation.struct SQLQualifiedTableAn expression representing an optionally second-level-qualified SQL table.struct SQLQueryStringAn expression consisting of an array of constituent subexpressions generated by custom string interpolations.