[python/r] Update docstrings for domain argument to create

apis/python/src/tiledbsoma/_dataframe.py

@@ -172,16 +172,22 @@ def create(
                 index column name is required.
             domain:
                 An optional sequence of tuples specifying the domain of each
-                index column. Each tuple should be a pair consisting of the minimum and
-                maximum values storable in the index column. For example, if there is a
-                single int64-valued index column, then ``domain`` might be ``[(100,
-                200)]`` to indicate that values between 100 and 200, inclusive, can be
-                stored in that column.  If provided, this sequence must have the same
-                length as ``index_column_names``, and the index-column domain will be as
-                specified.  If omitted entirely, or if ``None`` in a given dimension,
-                the corresponding index-column domain will use the minimum and maximum
-                possible values for the column's datatype.  This makes a
-                :class:`DataFrame` growable.
+                index column. Each tuple must be a pair consisting of the
+                minimum and maximum values storable in the index column. For
+                example, if there is a single int64-valued index column, then
+                ``domain`` might be ``[(100, 200)]`` to indicate that values
+                between 100 and 200, inclusive, can be stored in that column.
+                If provided, this sequence must have the same length as
+                ``index_column_names``, and the index-column domain will be as
+                specified.  If omitted entirely, or if ``None`` in a given
+                dimension, the corresponding index-column domain will use the
+                smallest possible values for the column's datatype, and data
+                writes after that will fail with "A range was set outside of the
+                current domain". Unless you have a particular reason not to, you
+                should always provide the desired `domain` at create time: this
+                is an optional but strongly recommended parameter. See also
+                ``change_domain`` which allows you to expand the domain after
+                create.
             platform_config:
                 Platform-specific options used to create this array.
                 This may be provided as settings in a dictionary, with options

apis/r/R/SOMADataFrame.R

@@ -19,14 +19,21 @@ SOMADataFrame <- R6::R6Class(
     #' @param index_column_names A vector of column names to use as user-defined
     #' index columns.  All named columns must exist in the schema, and at least
     #' one index column name is required.
-    #' @param domain An optional list of 2-element vectors specifying the domain of each index
-    #' column. Each vector should be a pair consisting of the minimum and maximum values storable in
-    #' the index column. For example, if there is a single int64-valued index column, then `domain`
-    #' might be `c(100, 200)` to indicate that values between 100 and 200, inclusive, can be stored
-    #' in that column.  If provided, this list must have the same length as `index_column_names`,
-    #' and the index-column domain will be as specified.  If omitted entirely, or if `NULL` in a given
-    #' dimension, the corresponding index-column domain will use the minimum and maximum possible
-    #' values for the column's datatype.  This makes a `DataFrame` growable.
+    #' @param domain An optional sequence of tuples specifying the domain of each
+    #' index column. Each tuple must be a pair consisting of the minimum and
+    #' maximum values storable in the index column. For example, if there is a
+    #' single int64-valued index column `soma_joinid`, then `domain` might be
+    #' `list(soma_joinid=c(100, 200))` to indicate that values between 100 and
+    #' 200, inclusive, can be stored in that column.  If provided, this sequence
+    #' must have the same length as `index_column_names`, and the index-column
+    #' domain will be as specified.  If omitted entirely, or if `NULL` in a given
+    #' dimension, the corresponding index-column domain will use the smallest
+    #' possible values for the column's datatype, and data writes after that will
+    #' fail with "A range was set outside of the current domain". Unless you have
+    #' a particular reason not to, you should always provide the desired `domain`
+    #' at create time: this is an optional but strongly recommended parameter.
+    #' See also `change_domain` which allows you to expand the domain after
+    #' create.
     #' @template param-platform-config
     #' @param internal_use_only Character value to signal this is a 'permitted' call,
     #' as `create()` is considered internal and should not be called directly.