Adding a new limitation to the README file. (#16475)

* Update README.md * Update README.md * Update README.md * Update README.md * Update README.md * Update sdk/cosmos/azure-cosmos/README.md Co-authored-by: Zachary Foster <zfoster@users.noreply.github.com> * Update README.md Co-authored-by: Zachary Foster <zfoster@users.noreply.github.com>
Azure · Feb 3, 2021 · 12115ad · 12115ad
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diff --git a/sdk/cosmos/azure-cosmos/README.md b/sdk/cosmos/azure-cosmos/README.md
@@ -87,6 +87,7 @@ As of August 2020 the features below are **not supported**.
 
 * Group By queries (in roadmap for 2021)
 * Language Native async i/o (in roadmap for 2021)
+* Queries with COUNT from a DISTINCT subquery: SELECT COUNT (1) FROM (SELECT DISTINCT C.ID FROM C)
 * Bulk/Transactional batch processing
 * Direct TCP Mode access
 * Continuation token for cross partitions queries