R/onLoad.R

In dbi.table: Database Queries Using 'data.table' Syntax

session <- new.env(parent = emptyenv())
session$table_name_counter <- 0L
session$print <- NULL
session$special_symbols <- new.env(parent = emptyenv())
session$key_base <- "+xcwrl+"
session$tmp_base <- "DBI_TABLE_PACKAGE_TEMPORARY_TABLE_"
session$ignore_schemas <- c("information_schema", "pg_catalog")
session$default_information_schema_tables <- c("columns",
                                               "key_column_usage",
                                               "referential_constraints",
                                               "tables")

.onLoad <- function(libname, pkgname) {
  add_special(".N", function(e, dbi_table, specials, env) call("n"))
  add_special(".SD")
  add_special(".BY")
  add_special(".I")
  add_special(".GRP")
  add_special(".NGRP")
  add_special(".EACHI")

  add_special("%in%", special_in)
  add_special("%chin%", special_in)
  add_special("local", special_local)
  add_special("!", special_not)
  add_special("%like%", special_like)
  add_special("%LIKE%", special_LIKE)

  NULL
}