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Begin-mask query operation.

Source: R/query_builders_exports.R
BeginMask.Rd

Builds a [ <property> query fragment that opens a masked subquery against property. Close the mask with EndMask().

Usage

BeginMask(value, ...)

Arguments

value

Property name (character scalar), or a piped DafrQuery.

...

Optional piped DafrQuery.

Value

A DafrQuery.

See also

BeginNegatedMask(), EndMask(), AndMask()

Examples

BeginMask("type")
#> <DafrQuery> [ type 
Axis("cell") |> BeginMask("type") |> EndMask()
#> <DafrQuery> @ cell [ type ]