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d1dbb40362Tools for profiling Datasette's request/response cycle in-process with Python 3.15's profiling.sampling, plus the patches proposed by the study (one per optimisation, and ALL-combined.diff). The patches are not applied to the code. A report with measurements follows. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01F8mEgRS8swZfYqwqrVMeo5
24 lines
1.1 KiB
Diff
24 lines
1.1 KiB
Diff
diff --git a/datasette/utils/actions_sql.py b/datasette/utils/actions_sql.py
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index fb28d3a..917e3a4 100644
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--- a/datasette/utils/actions_sql.py
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+++ b/datasette/utils/actions_sql.py
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@@ -600,14 +600,15 @@ async def check_permissions_for_actions(
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rule_parts = []
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restriction_parts = []
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- for permission_sql in permission_sqls:
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+ for j, permission_sql in enumerate(permission_sqls):
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sql = permission_sql.sql
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restriction_sql = permission_sql.restriction_sql
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# Namespace this block's params so identical names used for
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- # different actions cannot collide
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+ # different actions cannot collide. Positional names keep the
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+ # SQL text stable across requests (sqlite3 statement cache)
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renames = {}
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- for key in permission_sql.params or {}:
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- new_key = prefix + key
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+ for n, key in enumerate(permission_sql.params or {}):
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+ new_key = f"{prefix}b{j}_{n}"
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params[new_key] = permission_sql.params[key]
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renames[key] = new_key
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if renames:
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