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Added the Contains basic operation to the documentation.

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ohad authored and jgm committed Dec 26, 2010
1 parent b7598ad commit c29f6a370c2efe181f84e793a1ff72c1cc0832b6
Showing with 5 additions and 1 deletion.
  1. +5 −1 README.markdown
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@@ -271,7 +271,11 @@ of lists of lists, and so on.
conditions*. A *basic condition* is of the form `value op value`,
where `value` may be either a fieldname or a constant. Note that
all constants must be enclosed in quotes. `op` may be one of the
-following: `=`, `>=`, `<=`, `>`, `<`.
+following: `=`, `>=`, `<=`, `>`, `<` and 'contains'.
+
+> The basic condition `arg1 contains arg2` succeeds if and only if
+`arg1` is a fieldname whose value is a list containing the value of
+`arg2`.
Note that the order of transformations is significant. You can get
different results if you use `LIMIT` before or after `ORDER BY`,

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