Fix PREWHERE for StorageBuffer with different source table column types.

[KochetovNicolai]

Changelog category (leave one):

• Bug Fix (user-visible misbehavior in an official stable release)

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Fix the Unexpected return type error for queries that read from StorageBuffer with PREWHERE when the source table has different types. Fixes #62545

[robot-ch-test-poll3]

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