Better exception message for PostgreSQL81Dialect and named REF_CURSOR parameter binding

Description

This exception message in PostgreSQL81Dialect should be changed to "supports only REF_CURSOR parameters by position":

Environment

None

Status

Assignee

Vlad Mihalcea

Reporter

Christian Bauer

Fix versions

Labels

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backPortable

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Suitable for new contributors

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Requires Release Note

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Pull Request

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backportDecision

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Affects versions

Priority

Trivial
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