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become an externally usable package but still remains within the main sqlalchemy parent package.
in this system, we use kind of an ugly hack to get the noseplugin imported outside of the
"sqlalchemy" package, while still making it available within sqlalchemy for usage by
third party libraries.
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fires off for so-called "_cursor_execute"
events, which are usually special-case
executions of primary-key bound sequences
and default-generation SQL
phrases that invoke separately when RETURNING
is not used with INSERT. [ticket:2459]
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which prevented referring to a CTE in a union
of itself without it being aliased.
CTEs now render uniquely
on name, rendering the outermost CTE of a given
name only - all other references are rendered
just as the name. This even includes other
CTE/SELECTs that refer to different versions
of the same CTE object, such as a SELECT
or a UNION ALL of that SELECT. We are
somewhat loosening the usual link between object
identity and lexical identity in this case.
A true name conflict between two unrelated
CTEs now raises an error.
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- rework bindtemplate system of "numbered" params by applying
the numbers last, as we now need to generate these out of order
in some cases
- add positional assertion to assert_compile
- add new cte_positional collection to track bindparams generated
within cte visits; splice this onto the beginning of self.positiontup
at cte render time, [ticket:2521]
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