@@ -16,11 +16,34 @@ Time Series Collection Limitations
1616   :description: Time Series, IOT
1717   :keywords: Time Series, IOT
1818
19+ Unsupported Features
20+ ~~~~~~~~~~~~~~~~~~~~~
21+ 
22+ The following features are not supported for 
23+ :ref:`time series collections <manual-timeseries-collection>`.
24+ 
25+ * :doc:`Client-side field level encryption </core/security-client-side-encryption>`
26+ * :dbcommand:`reIndex`
27+ * :doc:`Change streams </changeStreams>`
28+ * :realm:`Database Triggers </triggers/database-triggers>`
29+ * :realm:`GraphQL API </graphql>`
30+ * :atlas:`Atlas Search </atlas-search>`
31+ * :realm:`Realm Sync </sync>`
32+ * :atlas:`Data API </api/data-api>`
33+ * :doc:`Schema validation rules </core/schema-validation>`
34+ 
1935Constraints
2036~~~~~~~~~~~
2137
2238The maximum size of a measurement document is 4 MB.
2339
40+ Aggregation $out and $merge
41+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
42+ 
43+ You can't use aggregation pipeline stages :pipeline:`$out` and :pipeline:`$merge`
44+ to output or merge into to :ref:`time series collections
45+ <manual-timeseries-collection>` from another collection.
46+ 
2447.. _timeseries-limitations-updates-deletes:
2548
2649Updates and Deletes
@@ -83,12 +106,6 @@ Secondary indexes don't support the following index properties:
83106- :doc:`Unique </core/index-unique>`
84107- :doc:`Partial </core/index-partial>`
85108
86- ``reIndex``
87- ~~~~~~~~~~~
88- 
89- The :dbcommand:`reIndex` command is not supported for :ref:`time series
90- collections <manual-timeseries-collection>`.
91- 
92109Capped Collections
93110~~~~~~~~~~~~~~~~~~
94111
@@ -127,19 +144,6 @@ a time. From ``"seconds"`` to ``"minutes"`` or from ``"minutes"`` to
127144``granularity`` from ``"seconds"`` to ``"hours"``, first increase the
128145``granularity`` to ``"minutes"`` and then to ``"hours"``.
129146
130- Schema Validation
131- ~~~~~~~~~~~~~~~~~
132- 
133- You cannot specify :doc:`validation rules </core/schema-validation>` for
134- :ref:`time series collections <manual-timeseries-collection>`.
135- 
136- Client-Side Field Level Encryption
137- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
138- 
139- :doc:`Client-side field level encryption
140- </core/security-client-side-encryption>` is not supported for
141- :ref:`time series collections <manual-timeseries-collection>`.
142- 
143147.. _time-series-limitations-sharding:
144148
145149Sharding
@@ -172,13 +176,6 @@ Shard Keys
172176
173177.. include:: /includes/time-series/fact-shard-key-limitations.rst
174178
175- Aggregation $out and $merge
176- ~~~~~~~~~~~~~~~~~~~~~~~~~~~
177- 
178- The aggregation pipeline stages :pipeline:`$out` and :pipeline:`$merge`
179- can't output to :ref:`time series collections
180- <manual-timeseries-collection>`.
181- 
182179Transactions
183180~~~~~~~~~~~~
184181
@@ -190,33 +187,5 @@ You can't write to :ref:`time series collections
190187
191188  Reads from time series collections are supported in transactions.
192189
193- Change Streams
194- ~~~~~~~~~~~~~~
195- 
196- :doc:`Change streams </changeStreams>` are not supported for
197- :ref:`time series collections <manual-timeseries-collection>`.
198- 
199- Database Triggers
200- ~~~~~~~~~~~~~~~~~
201- 
202- :realm:`Database Triggers </triggers/database-triggers>` are not
203- supported for :ref:`time series collections
204- <manual-timeseries-collection>`.
205- 
206- GraphQL API
207- ~~~~~~~~~~~
208- 
209- :realm:`GraphQL API </graphql>` is not supported for :ref:`time series
210- collections <manual-timeseries-collection>`.
211- 
212- Atlas Search
213- ~~~~~~~~~~~~
214- 
215- :atlas:`Atlas Search </atlas-search>` is not supported for :ref:`time
216- series collections <manual-timeseries-collection>`.
217190
218- Realm Sync
219- ~~~~~~~~~~
220191
221- :realm:`Realm Sync </sync>` is not supported for :ref:`time series
222- collections <manual-timeseries-collection>`.
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