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This set of S3 classes describe the action of dplyr verbs. These are currently used for SQL sources to separate the description of operations in R from their computation in SQL. This API is very new so is likely to evolve in the future.

Usage

lazy_base_query(x, vars, class = character(), ...)

op_grps(op)

op_vars(op)

op_sort(op)

op_frame(op)

Details

op_vars() and op_grps() compute the variables and groups from a sequence of lazy operations. op_sort() and op_frame() tracks the order and frame for use in window functions.