Describe the bug: ...

Queries made to tables which requires escaping end up with the wrong span name.

The following spans are SELECTs from four different tables, but only two unique span names appear.

To Reproduce

Import package and call extract_signature:

>>> from elasticapm.instrumentation.packages import dbapi2 >>> dbapi2.extract_signature("SELECT username FROM user") 'SELECT FROM user' >>> dbapi2.extract_signature("SELECT username FROM [user]") 'SELECT FROM ['

Environment (please complete the following information)

• OS: [e.g. Linux]
• Python version:
• Framework and version [e.g. Django 2.1]:
• APM Server version:
• Agent version:

Additional context

Add any other context about the problem here.

• Agent config options

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  replace this line with your agent config options remember to mask any sensitive fields like tokens 

• requirements.txt:

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  replace this line with your `requirements.txt`