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20 lines
305 B
Text
20 lines
305 B
Text
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SELECT COUNT(id) AS cnt FROM
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(
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(
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SELECT
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recipient_id AS id
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FROM messages
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WHERE
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sender_id = ?
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AND
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sender_type = ?
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) UNION (
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SELECT
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sender_id AS id
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FROM messages
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WHERE
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recipient_id = ?
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AND
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recipient_type = ?
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)
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) dt
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