add zero column note

WinVector · Jun 27, 2019 · 9913c92 · 9913c92
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commit 9913c92
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Showing 4 changed files with 5 additions and 4 deletions.
diff --git a/README.Rmd b/README.Rmd
@@ -92,5 +92,5 @@ To install `rqdatatable` please use `install.packages("rqdatatable")`.
 
 --
 
-Note `rqdatatable` is intended for "simple column names", in particular as `rqdatatable` often uses `eval()` to work over `data.table` escape characters such as "`\`" and "`\\`" are not reliable in column names.
+Note `rqdatatable` is intended for "simple column names", in particular as `rqdatatable` often uses `eval()` to work over `data.table` escape characters such as "`\`" and "`\\`" are not reliable in column names.  Also `rqdatatable` does not support tables with no columns.
 
diff --git a/README.md b/README.md
@@ -133,3 +133,4 @@ To install `rqdatatable` please use `install.packages("rqdatatable")`.
 Note `rqdatatable` is intended for “simple column names”, in particular
 as `rqdatatable` often uses `eval()` to work over `data.table` escape
 characters such as “`\`” and “`\\`” are not reliable in column names.
+Also `rqdatatable` does not support tables with no columns.
diff --git a/docs/index.html b/docs/index.html
diff --git a/docs/reference/ex_data_table.relop_drop_columns.html b/docs/reference/ex_data_table.relop_drop_columns.html
Original file line number	Diff line number	Diff line change
Expand Up		@@ -92,5 +92,5 @@ To install `rqdatatable` please use `install.packages("rqdatatable")`.

		--

		Note `rqdatatable` is intended for "simple column names", in particular as `rqdatatable` often uses `eval()` to work over `data.table` escape characters such as "`\`" and "`\\`" are not reliable in column names.
		Note `rqdatatable` is intended for "simple column names", in particular as `rqdatatable` often uses `eval()` to work over `data.table` escape characters such as "`\`" and "`\\`" are not reliable in column names. Also `rqdatatable` does not support tables with no columns.