Define a table schema

A schema is a named set of columns with explicit types. It is used to allocate table buffers and validate writes.

Usage

schema(...)

Arguments

...

Named columns with type specs (e.g., int32(), float64()).

Value

A shard_schema object.

Examples

s <- schema(x = float64(), y = int32(), label = string_col())
s
#> $columns
#> $columns$x
#> $kind
#> [1] "float64"
#> 
#> attr(,"class")
#> [1] "shard_coltype"
#> 
#> $columns$y
#> $kind
#> [1] "int32"
#> 
#> attr(,"class")
#> [1] "shard_coltype"
#> 
#> $columns$label
#> $kind
#> [1] "string"
#> 
#> attr(,"class")
#> [1] "shard_coltype"
#> 
#> 
#> attr(,"class")
#> [1] "shard_schema"