Use the general statement cache for type introspection #199
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1st1
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Sep 27, 2017
asyncpg/connection.py
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| stmt, args, '', limit, return_status, timeout) | ||
| timeout = self._protocol._get_timeout(timeout) | ||
| with self._stmt_exclusive_section: | ||
| return await self._do_execute(query, executor, timeout) |
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Maybe we should refactor def _execute to:
async def _execute(self, query, args, limit, timeout, return_status=False):
with self._stmt_exclusive_section:
return await self.__execute(self, query, args, limit, timeout, return_status)?
1st1
reviewed
Sep 27, 2017
| # cache turned off has blown away the anonymous statement | ||
| # we've prepared for the query, so we need to re-prepare it. | ||
| statement = await self._protocol.prepare( | ||
| stmt_name, query, timeout) |
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Yes, and my code is wrong.
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Pushed a more robust check.
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1st1
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Sep 28, 2017
| types, intro_stmt = await self.__execute( | ||
| self._intro_query, (list(ready),), 0, timeout) | ||
| self._protocol.get_settings().register_data_types(types) | ||
| if not intro_stmt.name and not statement.name: |
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Just check for statement.name? The current check won’t work correctly if statement is anonymous and intro_stmt is not. Also, tests?
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I don't think that's true. From the docs:
An unnamed prepared statement lasts only until the next Parse statement specifying the unnamed statement as destination is issued.
I added another test to show that.
1st1
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Sep 28, 2017
Type introspection queries now rely on the general statement cache instead of ad-hoc prepared statements. Fixes: #198.
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Type introspection queries now rely on the general statement cache
instead of ad-hoc prepared statements.
Fixes: #198.