Add small note about timescale dependent objects (github#165)

* Add small note about timescale dependent objects * Update timescaledb/tutorials/custom-timescaledb-dashboards.md Co-authored-by: Lana Brindley <github@lanabrindley.com> Co-authored-by: Lana Brindley <github@lanabrindley.com>
jnidzwetzki · Jul 12, 2021 · 40d492a · 40d492a
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commit 40d492a
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diff --git a/timescaledb/tutorials/custom-timescaledb-dashboards.md b/timescaledb/tutorials/custom-timescaledb-dashboards.md
@@ -166,6 +166,11 @@ FROM (
     AND ch.chunk_name = cds.chunk_name;
 ```
 
+<highlight type="warning">
+The view is dependent on TimescaleDB internals. You might need to drop the view
+to upgrade the TimescaleDB extension, and recreate it after the upgrade.
+</highlight>
+
 To test, use the name of a random chunk from the hypertable to query this view and check that you get all of the information you need. You should see the time range of the chunk, the hypertable information, and its size before and after compression.
 
 In this example chunk, the `before_compression_total_bytes` is ten times bigger than `after_compression_total_bytes`. Compression saved more than 90% of disk space!