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Allow for selection of single properties of map key elements

Description

The JPA spec (section 4.8) allows to select specific properties of map key elements:

1 SELECT KEY(i).title FROM VideoStore v JOIN v.videoInventory i;

The parser complains about the extraneous input after the KEY function, though:

1 line 1:13 extraneous input '.' expecting {',', '+', '-', '*', '/', '%', '||', IDENTIFIER}

Environment

None

Status

Assignee

Steve Ebersole

Reporter

Gunnar Morling

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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Components

Priority

Major