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Batch fetch bundled annotations (#14491)

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Avoid an n+1 query problem and fetch the bundled aggregations for
m.annotation relations in a single query instead of a query per event.

This applies similar logic for as was previously done for edits in
8b309adb43 (#11660) and threads
in b65acead42 (#11752).
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Patrick Cloke 2022-11-22 07:26:11 -05:00 • committed by GitHub
parent da933bfc3f
commit 1799a54a54
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5 changed files with 203 additions and 142 deletions
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synapse/util/caches/descriptors.py
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@ -503,7 +503,7 @@ def cachedList(
is specified as a list that is iterated through to lookup keys in the
original cache. A new tuple consisting of the (deduplicated) keys that weren't in
the cache gets passed to the original function, which is expected to results
in a map of key to value for each passed value. THe new results are stored in the
in a map of key to value for each passed value. The new results are stored in the
original cache. Note that any missing values are cached as None.
Args: