Adds custom data types method for Snowflake DBs (#451)

Co-authored-by: Jim Hester <james.f.hester@gmail.com>
r-dbi · Apr 1, 2021 · d19370c · d19370c
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diff --git a/NEWS.md b/NEWS.md
@@ -1,5 +1,7 @@
 # odbc (development version)
 
+* New `odbcDataType.Snowflake()` method for Snowflake databases. (@edgararuiz, #451)
+
 # odbc 1.3.1
 
 * Fixed warnings about anonymous unions (@detule, #440)

diff --git a/R/DataTypes.R b/R/DataTypes.R
@@ -296,6 +296,24 @@ odbcDataType.Oracle <- function(con, obj, ...) {
   )
 }
 
+#' @export
+`odbcDataType.Snowflake` <- function(con, obj, ...) {
+  switch_type(
+    obj,
+    factor = "VARCHAR(255)",
+    datetime = "TIMESTAMP",
+    date = "DATE",
+    time = "TIME",
+    binary = "VARBINARY(255)",
+    integer = "INTEGER",
+    double = "DOUBLE PRECISION",
+    character = "VARCHAR(255)",
+    logical = "BOOLEAN",
+    list = "VARCHAR(255)",
+    stop("Unsupported type", call. = FALSE)
+  )
+}
+
 switch_type <- function(obj, ...) {
   switch(object_type(obj), ...)
 }