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Document how to confirm that `INSERT` worked with prepared statement

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
45/100
Issue type
Documentation
Clarity
Mostly clear
Activity status
Stale
Tech stack
postgresql, python

Research direction

Start by reviewing asyncpg's documented execute() and fetch*() methods alongside PostgreSQL's INSERT command documentation. Determine how a fetch-based call can confirm whether an INSERT affected a row while using the prepared-statement LRU, including the meaning of zero affected rows. Done means the documentation clearly explains the recommended method and expected result.

Written by the indexing model from the issue text.

Description

When using execute() I can parse the command output for INSERT to confirm a single row inserted like INSERT 0 1. However, execute() does not support the LRU for automatically prepared statements. Can you document how to confirm that the INSERT worked using a fetch*() method that will use the LRU? I do sometimes see INSERT 0 0 results in some high-volume workloads (likely just duplicate data), and these do not raise UniqueViolationError, QueryCanceledError, or some TimeoutError.

Dominant language
Python
Stars
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Forks
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Avg merge
2d 20h
Merged PRs (30d)
9

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