20161213.diff.01.hunks.php
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	<?php

	$conn = id(new DifferentialRevision())->establishConnection('w');
	$src_table = 'differential_hunk';
	$dst_table = 'differential_hunk_modern';

	echo tsprintf(
	"%s\n",
	pht('Migrating old hunks...'));

	foreach (new LiskRawMigrationIterator($conn, $src_table) as $row) {
	queryfx(
	$conn,
	'INSERT INTO %T
	(changesetID, oldOffset, oldLen, newOffset, newLen,
	dataType, dataEncoding, dataFormat, data,
	dateCreated, dateModified)
	VALUES
	(%d, %d, %d, %d, %d,
	%s, %s, %s, %s,
	%d, %d)',
	$dst_table,
	$row['changesetID'],
	$row['oldOffset'],
	$row['oldLen'],
	$row['newOffset'],
	$row['newLen'],
	DifferentialModernHunk::DATATYPE_TEXT,
	'utf8',
	DifferentialModernHunk::DATAFORMAT_RAW,
	// In rare cases, this could be NULL. See T12090.
	(string)$row['changes'],
	$row['dateCreated'],
	$row['dateModified']);
	}

	echo tsprintf(
	"%s\n",
	pht('Done.'));