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* fix(otlp): coerce empty and "-" trace attribute strings to null
Instrumentations fill numeric attributes from absent headers with an empty
string (PSR-7 getHeaderLine returns ""). Coercing that into an existing
numeric column failed and rejected the whole span.
Signed-off-by: Dennis Zhuang <killme2008@gmail.com>
* test: trim redundant row from empty-string rewrite test
Signed-off-by: Dennis Zhuang <killme2008@gmail.com>
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Signed-off-by: Dennis Zhuang <killme2008@gmail.com>
(cherry picked from commit d640ab8bc5)
Signed-off-by: WenyXu <wenymedia@gmail.com>