mysqlclient: add capture_parameters option#4800
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Add a shared _set_db_query_parameters helper that emits one db.query.parameter.<key> attribute per prepared-statement parameter, keyed by name for named parameters and by 0-based index for positional parameters, with values stringified. Wire it into the dbapi CursorTracer so that, when capture_parameters is enabled, the legacy db.statement.parameters attribute is reported only in the old semconv while db.query.parameter.<key> is reported in the new (stable) database semconv. Parameters are not captured on batch operations (executemany), per the semantic conventions.
Thread a capture_parameters flag through MySQLClientInstrumentor so users can enable prepared-statement parameter capture. The flag is read in _instrument and passed to dbapi.wrap_connect, and exposed as a parameter on instrument_connection which forwards it to dbapi.instrument_connection.
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Description
Threads a
capture_parametersoption through the mysqlclient instrumentor to the shared DB-API layer, so parameters are recorded asdb.query.parameter.<key>.Part of #4787. Fixes #4790.
Type of change
How Has This Been Tested?
MySQLdbdriver requires system libs and is not buildable here). The change is the same passthrough as the other MySQL-family PRs;ruffis clean and the module compiles.Does This PR Require a Core Repo Change?
Checklist: