R: 'rquery' for 'data.table'

# 'rquery' for 'data.table'

## Documentation for package ‘rqdatatable’ version 1.3.3

- DESCRIPTION file
- User guides, package vignettes and other documentation
- Package NEWS
- Package README

## Help Pages

rqdatatable-package | 'rqdatatable': Relational Query Generator for Data Manipulation Implemented by data.table
ex_data_table | Execute an 'rquery' pipeline with 'data.table' sources.
ex_data_table_parallel | Execute an 'rquery' pipeline with 'data.table' in parallel.
ex_data_table_step.default | default non-impementation.
ex_data_table_step.relop_drop_columns | Implement drop columns.
ex_data_table_step.relop_extend | Implement extend/assign operator.
ex_data_table_step.relop_natural_join | Natural join.
ex_data_table_step.relop_non_sql | Direct non-sql (function) node, not implemented for 'data.table' case.
ex_data_table_step.relop_null_replace | Replace NAs.
ex_data_table_step.relop_orderby | Reorder rows.
ex_data_table_step.relop_order_expr | Order rows by expression.
ex_data_table_step.relop_project | Implement projection operator.
ex_data_table_step.relop_rename_columns | Rename columns.
ex_data_table_step.relop_select_columns | Implement drop columns.
ex_data_table_step.relop_select_rows | Select rows by condition.
ex_data_table_step.relop_set_indicator | Implement set_indicatoroperator.
ex_data_table_step.relop_sql | Direct sql node.
ex_data_table_step.relop_table_source | Build a data source description.
ex_data_table_step.relop_theta_join | Theta join (database implementation).
ex_data_table_step.relop_unionall | Bind tables together by rows.
make_dt_lookup_by_column | Lookup by column function factory.
rqdatatable | 'rqdatatable': Relational Query Generator for Data Manipulation Implemented by data.table
rq_df_funciton_node | Helper to build data.table capable non-sql nodes.
rq_df_grouped_funciton_node | Helper to build data.table capable non-sql nodes.
set_rqdatatable_as_executor | Set rqdatatable package as default rquery executor