exposed-jdbc/src/main/kotlin/org/jetbrains/exposed/v1/jdbc/Query.kt [301:327]:
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    override fun iterator(): Iterator<ResultRow> {
        val rs = transaction.execQuery(queryToExecute)
        val resultIterator = ResultIterator(rs)
        return if (transaction.db.supportsMultipleResultSets) {
            resultIterator
        } else {
            Iterable { resultIterator }.toList().iterator()
        }
    }

    private inner class ResultIterator(rs: ResultSet) : StatementIterator<Expression<*>, ResultRow>(rs) {
        override val fieldIndex = set.realFields.toSet()
            .mapIndexed { index, expression -> expression to index }
            .toMap()

        init {
            hasNext = result.next()
            if (hasNext) trackResultSet(transaction)
        }

        override fun createResultRow(): ResultRow = ResultRow.create(JdbcResult(result), fieldIndex)
    }

    companion object {
        private fun trackResultSet(transaction: JdbcTransaction) {
            val threshold = transaction.db.config.logTooMuchResultSetsThreshold
            if (threshold > 0 && threshold < transaction.openResultSetsCount) {
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exposed-jdbc/src/main/kotlin/org/jetbrains/exposed/v1/jdbc/SetOperations.kt [156:182]:
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    override fun iterator(): Iterator<ResultRow> {
        val rs = transaction.execQuery(queryToExecute)
        val resultIterator = ResultIterator(rs)
        return if (transaction.db.supportsMultipleResultSets) {
            resultIterator
        } else {
            Iterable { resultIterator }.toList().iterator()
        }
    }

    private inner class ResultIterator(rs: ResultSet) : StatementIterator<Expression<*>, ResultRow>(rs) {
        override val fieldIndex = set.realFields.toSet()
            .mapIndexed { index, expression -> expression to index }
            .toMap()

        init {
            hasNext = result.next()
            if (hasNext) trackResultSet(transaction)
        }

        override fun createResultRow(): ResultRow = ResultRow.create(JdbcResult(result), fieldIndex)
    }

    companion object {
        private fun trackResultSet(transaction: JdbcTransaction) {
            val threshold = transaction.db.config.logTooMuchResultSetsThreshold
            if (threshold > 0 && threshold < transaction.openResultSetsCount) {
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