Syncs cached files across storage depths by incrementally updating using cache_update or simply copying and converting the most recently-modified cache to the other locations using cache_read and cache_write.
Usage
sync_cache(
table_name,
type,
incremental = FALSE,
date_column = NULL,
whole_file = !cache_exists_any(table_name, type),
...
)Arguments
- table_name
string
- type
string, e.g. "tessi" or "stream"
- incremental
boolean, whether to incrementally update the caches by using cache_update or simply copying the whole file.
- date_column
character name of the column to be used for determining the date of last row update, useful for incremental updates.
- whole_file
boolean, whether to copy the whole file using file.copy or to convert it using cache_read and cache_write. The default is to convert if the cache is in a recognizable arrow format and to copy if it is not.
- ...
additional parameters passed on to cache_update
Examples
if (FALSE) { # \dontrun{
x <- data.table(a = c(1, 2, 3))
write_cache(x, "test", "stream", primary_keys = c("a"))
sync_cache("test", "stream")
} # }