updates.inc

    case 'pgsql':
      $ret[] = update_sql("ALTER TABLE {forum} DROP shadow");
      break;
    case 'mysql':
    case 'mysqli':
      break;
  }

  return $ret;
}

function system_update_153(){
  $ret = array();
  switch ($GLOBALS['db_type']) {
    case 'pgsql':
      $ret[] = update_sql("ALTER TABLE {contact} DROP CONSTRAINT {contact}_pkey");
      $ret[] = update_sql("CREATE SEQUENCE {contact}_cid_seq");
      db_add_column($ret, 'contact', 'cid', 'int', array('not null' => TRUE, 'default' => "nextval('{contact}_cid_seq')"));
      $ret[] = update_sql("ALTER TABLE {contact} ADD PRIMARY KEY (cid)");
      $ret[] = update_sql("ALTER TABLE {contact} ADD CONSTRAINT {contact}_category_key UNIQUE (category)");
      break;
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql("ALTER TABLE {contact} DROP PRIMARY KEY");
      $ret[] = update_sql("ALTER TABLE {contact} ADD COLUMN cid int(11) NOT NULL PRIMARY KEY auto_increment");
      $ret[] = update_sql("ALTER TABLE {contact} ADD UNIQUE KEY category (category)");
      break;
  }
  return $ret;
}

function system_update_154() {
  $ret = array();
  switch ($GLOBALS['db_type']) {
    case 'pgsql':
      db_add_column($ret, 'contact', 'weight', 'smallint', array('not null' => TRUE, 'default' => 0));
      db_add_column($ret, 'contact', 'selected', 'smallint', array('not null' => TRUE, 'default' => 0));
      break;
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql("ALTER TABLE {contact} ADD COLUMN weight tinyint(3) NOT NULL DEFAULT 0");
      $ret[] = update_sql("ALTER TABLE {contact} ADD COLUMN selected tinyint(1) NOT NULL DEFAULT 0");
      break;
  }
  return $ret;
}

function system_update_155() {
  $ret = array();

  // Postgresql only update
  switch ($GLOBALS['db_type']) {
    case 'pgsql':
      $ret[] = update_sql("DROP TABLE {cache}");
      $ret[] = update_sql("CREATE TABLE {cache} (
        cid varchar(255) NOT NULL default '',
        data bytea default '',
        expire integer NOT NULL default '0',
        created integer NOT NULL default '0',
        headers text default '',
        PRIMARY KEY (cid)
        )");
      $ret[] = update_sql("CREATE INDEX {cache}_expire_idx ON {cache}(expire)");
      break;
    case 'mysql':
    case 'mysqli':
      break;
  }

  return $ret;
}

function system_update_156() {
  $ret = array();
  $ret[] = update_sql("DELETE FROM {cache}");
  system_themes();
  return $ret;
}

function system_update_157() {
  $ret = array();
  $ret[] = update_sql("DELETE FROM {url_alias} WHERE src = 'node/feed' AND dst = 'rss.xml'");
  $ret[] = update_sql("INSERT INTO {url_alias} (src, dst) VALUES ('rss.xml', 'node/feed')");
  return $ret;
}

function system_update_158() {
  $ret = array();

  switch ($GLOBALS['db_type']) {
    case 'mysqli':
    case 'mysql':
      $ret[] = update_sql("ALTER TABLE {old_revisions} ADD done tinyint(1) NOT NULL DEFAULT 0");
      $ret[] = update_sql("ALTER TABLE {old_revisions} ADD INDEX (done)");
      break;

    case 'pgsql':
      db_add_column($ret, 'old_revisions', 'done', 'smallint', array('not null' => TRUE, 'default' => 0));
      $ret[] = update_sql('CREATE INDEX {old_revisions}_done_idx ON {old_revisions}(done)');
      break;
  }

  return $ret;
}

/**
 * Retrieve data out of the old_revisions table and put into new revision
 * system.
 *
 * The old_revisions table is not deleted because any data which could not be
 * put into the new system is retained.
 */
function system_update_159() {
  $ret = array();

  $result = db_query_range("SELECT * FROM {old_revisions} WHERE done = 0 AND type IN ('page', 'story', 'poll', 'book', 'forum')", 0, 20);

  $vid = db_next_id('{node_revisions}_vid');
  while ($node = db_fetch_object($result)) {
    $revisions = unserialize($node->revisions);
    if (!$revisions && is_array($revisions) && count($revisions) > 0) {
      $revisions_query = array();
      $revisions_args = array();
      $book_query = array();
      $book_args = array();
      $forum_query = array();
      $forum_args = array();
      foreach ($revisions as $version) {
        $revision = array();
        foreach ($version['node'] as $node_field => $node_value) {
          $revision[$node_field] = $node_value;
        }
        $revision['uid'] = $version['uid'];
        $revision['timestamp'] = $version['timestamp'];
        $vid++;
        $revisions_query[] = "(%d, %d, %d, '%s', '%s', '%s', '%s', %d, %d)";
        $revisions_args = array_merge($revisions_args, array($node->nid, $vid, $revision['uid'], $revision['title'], $revision['body'], $revision['teaser'], $revision['log'], $revision['timestamp'], $revision['format']));
        switch ($node->type) {
          case 'forum':
            if ($revision['tid'] > 0) {
              $forum_query[] = "(%d, %d, %d)";
              $forum_args = array_merge($forum_args, array($vid, $node->nid, $revision['tid']));
            }
            break;

          case 'book':
            $book_query[] = "(%d, %d, %d, %d)";
            $book_args = array_merge($book_args, array($vid, $node->nid, $revision['parent'], $revision['weight']));
            break;
        }
      }
      if (count($revisions_query)) {
        $revision_status = db_query("INSERT INTO {node_revisions} (nid, vid, uid, title, body, teaser, log, timestamp, format) VALUES ". implode(',', $revisions_query), $revisions_args);
      }
      if (count($forum_query)) {
        $forum_status = db_query("INSERT INTO {forum} (vid, nid, tid) VALUES ". implode(',', $forum_query), $forum_args);
      }
      if (count($book_query)) {
        $book_status = db_query("INSERT INTO {book} (vid, nid, parent, weight) VALUES ". implode(',', $book_query), $book_args);
      }
      $delete = FALSE;
      switch ($node->type) {
        case 'forum':
          if ($forum_status && $revision_status) {
            $delete = TRUE;
          }
          break;

        case 'book':
          if ($book_status && $revision_status) {
            $delete = TRUE;
          }
          break;

        default:
          if ($revision_status) {
            $delete = TRUE;
          }
          break;
      }

      if ($delete) {
        db_query('DELETE FROM {old_revisions} WHERE nid = %d', $node->nid);
      }
      else {
        db_query('UPDATE {old_revisions} SET done = 1 WHERE nid = %d', $node->nid);
      }
    }
  }

  switch ($GLOBALS['db_type']) {
    case 'mysqli':
    case 'mysql':
      $ret[] = update_sql("UPDATE {sequences} SET id = $vid WHERE name = '{node_revisions}_vid'");
      break;

    case 'pgsql':
      $ret[] = update_sql("SELECT setval('{node_revisions}_vid_seq', $vid)");
      break;
  }

  if (db_num_rows($result) < 20) {
    $ret[] = update_sql('ALTER TABLE {old_revisions} DROP done');
  }
  else {
    $ret['#finished'] = FALSE;
  }

  return $ret;
}

function system_update_160() {
  $types = module_invoke('node', 'get_types');
  if (is_array($types)) {
    foreach($types as $type) {
      if (!is_array(variable_get("node_options_$type", array()))) {
        variable_set("node_options_$type", array());
      }
    }
  }
  return array();
}

function system_update_161() {
  variable_del('forum_icon_path');
  return array();
}

function system_update_162() {
  $ret = array();

  // PostgreSQL only update
  switch ($GLOBALS['db_type']) {
    case 'pgsql':

      $ret[] = update_sql('DROP INDEX {book}_parent');
      $ret[] = update_sql('CREATE INDEX {book}_parent_idx ON {book}(parent)');

      $ret[] = update_sql('DROP INDEX {node_comment_statistics}_timestamp_idx');
      $ret[] = update_sql('CREATE INDEX {node_comment_statistics}_last_comment_timestamp_idx ON {node_comment_statistics}(last_comment_timestamp)');

      $ret[] = update_sql('ALTER TABLE {filters} ALTER delta SET DEFAULT 0');
      $ret[] = update_sql('DROP INDEX {filters}_module_idx');

      $ret[] = update_sql('DROP INDEX {locales_target}_lid_idx');
      $ret[] = update_sql('DROP INDEX {locales_target}_lang_idx');
      $ret[] = update_sql('CREATE INDEX {locales_target}_locale_idx ON {locales_target}(locale)');

      $ret[] = update_sql('DROP INDEX {node}_created');
      $ret[] = update_sql('CREATE INDEX {node}_created_idx ON {node}(created)');
      $ret[] = update_sql('DROP INDEX {node}_changed');
      $ret[] = update_sql('CREATE INDEX {node}_changed_idx ON {node}(changed)');

      $ret[] = update_sql('DROP INDEX {profile_fields}_category');
      $ret[] = update_sql('CREATE INDEX {profile_fields}_category_idx ON {profile_fields}(category)');

      $ret[] = update_sql('DROP INDEX {url_alias}_dst_idx');
      $ret[] = update_sql('CREATE UNIQUE INDEX {url_alias}_dst_idx ON {url_alias}(dst)');

      $ret[] = update_sql('CREATE INDEX {sessions}_uid_idx ON {sessions}(uid)');
      $ret[] = update_sql('CREATE INDEX {sessions}_timestamp_idx ON {sessions}(timestamp)');

      $ret[] = update_sql('ALTER TABLE {accesslog} DROP mask');

      db_change_column($ret, 'accesslog', 'path', 'path', 'text');
      db_change_column($ret, 'accesslog', 'url', 'url', 'text');
      db_change_column($ret, 'watchdog', 'link', 'link', 'text', array('not null' => TRUE, 'default' => "''"));
      db_change_column($ret, 'watchdog', 'location', 'location', 'text', array('not null' => TRUE, 'default' => "''"));
      db_change_column($ret, 'watchdog', 'referer', 'referer', 'text', array('not null' => TRUE, 'default' => "''"));

      break;
  }

  return $ret;
}

function system_update_163() {
  $ret = array();
  if ($GLOBALS['db_type'] == 'mysql') {
    $ret[] = update_sql('ALTER TABLE {cache} CHANGE data data LONGBLOB');
  }
  return $ret;
}