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SQLite specific implementation of UpdateQuery.

SQLite counts all the rows that match the conditions as modified, even if they will not be affected by the query. We workaround this by ensuring that we don't select those rows.

A query like this one: UPDATE test SET name = 'newname' WHERE tid = 1 will become: UPDATE test SET name = 'newname' WHERE tid = 1 AND name <> 'newname'

Hierarchy

includes/database/sqlite/query.inc, line 59

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Database abstraction layer

Allow the use of different database servers using the same code base.