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Functions ¶
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Types ¶
type Expr ¶
type Expr struct {
// contains filtered or unexported fields
}
Expr provides provides glue to run a traversal subquery in expression context. It implements zbuf.Puller so it can serve as the data source to the subquery as well as expr.Evalulator so it can be called from an expression. Each time its Eval method is called, it propagates the value to the batch channel to be pulled into the scope. If there is just one result, then the value is returned. If there are multiple results then they are returned in an array (with union elements if the type varies).
type Over ¶
type Over struct {
// contains filtered or unexported fields
}
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