#' Cria um index a partir dos julgados
#'
#' @param con conexão
#' @param tbl tabela
#'
#' @return Nenhum objeto R é retornado
#' @export
#'
#' @examples
#' \dontrun{
#' library(carf)
#' con <- dbx::dbxConnect()
#' dplyr::copy_to(con, "julgados", df)
#' psql_carf_tokenize(con, "julgados")
#' }
psql_carf_tokenize <- function(con, tbl) {
source <- "inteiro_teor"
target <- "document_tokens"
idx <- paste0(tbl,"_idx")
query <- glue::glue_sql("ALTER TABLE {`tbl`} ADD COLUMN {`target`} TSVECTOR", .con = con)
res <- DBI::dbSendQuery(con, query)
DBI::dbClearResult(res)
query <- glue::glue_sql("UPDATE {`tbl`} SET
{`target`} = to_tsvector(coalesce({`source`},''))", .con = con)
res <- DBI::dbSendQuery(con, query)
DBI::dbClearResult(res)
query <- glue::glue_sql("CREATE INDEX {`idx`} ON {`tbl`} USING GIN ({`target`})", .con = con)
res <- DBI::dbSendQuery(con, query)
DBI::dbClearResult(res)
}
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