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-rw-r--r--system/database/drivers/interbase/interbase_driver.php26
1 files changed, 25 insertions, 1 deletions
diff --git a/system/database/drivers/interbase/interbase_driver.php b/system/database/drivers/interbase/interbase_driver.php
index b49d1fa74..e55a476bb 100644
--- a/system/database/drivers/interbase/interbase_driver.php
+++ b/system/database/drivers/interbase/interbase_driver.php
@@ -601,7 +601,31 @@ SQL;
*/
protected function _limit($sql, $limit, $offset)
{
- //There doesn't seem to be a limit clause?
+ // Keep the current sql string safe for a moment
+ $orig_sql = $sql;
+
+ // Limit clause depends on if Interbase or Firebird
+ if (stripos($this->_version(), 'firebird') !== FALSE)
+ {
+ $sql = 'FIRST '. (int) $limit;
+
+ if ($offset > 0)
+ {
+ $sql .= ' SKIP'. (int) $offset;
+ }
+ }
+ else
+ {
+ $sql = 'ROWS ' . (int) $limit;
+
+ if ($offset > 0)
+ {
+ $sql = 'ROWS '. (int) $offset . ' TO ' . ($limit + $offset);
+ }
+ }
+
+ $sql = preg_replace("`SELECT`i", "SELECT {$sql}", $orig_sql);
+
return $sql;
}