Fixed bug #57702 (Multi-row BLOB fetches)

2 files changed, 166 insertions, 2 deletions

diff --git a/ext/pdo_oci/oci_statement.c b/ext/pdo_oci/oci_statement.c
index 2a93a66a84..dcb9557803 100644
--- a/ext/pdo_oci/oci_statement.c
+++ b/ext/pdo_oci/oci_statement.c
@@ -99,7 +99,7 @@ static int oci_stmt_dtor(pdo_stmt_t *stmt TSRMLS_DC) /* {{{ */
 				switch (S->cols[i].dtype) {
 					case SQLT_BLOB:
 					case SQLT_CLOB:
-						/* do nothing */
+						OCIDescriptorFree(S->cols[i].data, OCI_DTYPE_LOB);
 						break;
 					default:
 						efree(S->cols[i].data);
@@ -654,7 +654,6 @@ static int oci_blob_close(php_stream *stream, int close_handle TSRMLS_DC)
 
 	if (close_handle) {
 		OCILobClose(self->S->H->svc, self->S->err, self->lob);
-		OCIDescriptorFree(self->lob, OCI_DTYPE_LOB);
 		efree(self);
 	}
 
diff --git a/ext/pdo_oci/tests/bug57702.phpt b/ext/pdo_oci/tests/bug57702.phpt
new file mode 100644
index 0000000000..9281f6d0f7
--- /dev/null
+++ b/ext/pdo_oci/tests/bug57702.phpt
@@ -0,0 +1,165 @@
+--TEST--
+PDO OCI Bug #57702 (Multi-row BLOB fetches)
+--SKIPIF--
+<?php
+if (!extension_loaded('pdo') || !extension_loaded('pdo_oci')) die('skip not loaded');
+require(dirname(__FILE__).'/../../pdo/tests/pdo_test.inc');
+PDOTest::skip();
+?>
+--FILE--
+<?php
+
+require('ext/pdo/tests/pdo_test.inc');
+$db = PDOTest::test_factory('ext/pdo_oci/tests/common.phpt');
+
+// Note the PDO test setup sets PDO::ATTR_STRINGIFY_FETCHES to true
+// (and sets PDO::ATTR_CASE to PDO::CASE_LOWER)
+
+$query = "begin execute immediate 'drop table mytable'; exception when others then if sqlcode <> -942 then raise; end if; end;";
+$stmt = $db->prepare($query);
+$stmt->execute();
+
+$query = "create table bug57702 (id number, data1 blob, data2 blob)";
+$stmt = $db->prepare($query);
+$stmt->execute();
+
+function do_insert($db, $id, $data1, $data2)
+{
+	$db->beginTransaction(); 
+	$stmt = $db->prepare("insert into bug57702 (id, data1, data2) values (:id, empty_blob(), empty_blob()) returning data1, data2 into :blob1, :blob2");
+	$stmt->bindParam(':id', $id);
+	$stmt->bindParam(':blob1', $blob1, PDO::PARAM_LOB);
+	$stmt->bindParam(':blob2', $blob2, PDO::PARAM_LOB);
+	$blob1 = null;
+	$blob2 = null;
+	$stmt->execute();
+
+	fwrite($blob1, $data1);  
+	fclose($blob1);
+	fwrite($blob2, $data2);  
+	fclose($blob2);	
+	$db->commit();
+}
+
+do_insert($db, 1, "row 1 col 1", "row 1 col 2");
+do_insert($db, 2, "row 2 col 1", "row 2 col 2");
+
+////////////////////
+
+echo "First Query\n";
+
+// Fetch it back
+$stmt = $db->prepare('select data1, data2 from bug57702 order by id');
+$stmt->execute();
+$row = $stmt->fetch(PDO::FETCH_ASSOC);
+var_dump($row['data1']);
+var_dump($row['data2']);
+$row = $stmt->fetch(PDO::FETCH_ASSOC);
+var_dump($row['data1']);
+var_dump($row['data2']);
+
+////////////////////
+
+echo "\nSecond Query\n";
+
+foreach($db->query("select data1 as d1, data2 as d2 from bug57702 order by id") as $row) {
+	var_dump($row['d1']);
+	var_dump($row['d2']);
+}
+
+////////////////////
+
+echo "\nThird Query\n";
+
+$stmt = $db->prepare('select data1 as d3_1, data2 as d3_2 from bug57702 order by id');
+
+$rs = $stmt->execute();
+$stmt->bindColumn('d3_1' , $clob1, PDO::PARAM_LOB);
+$stmt->bindColumn('d3_2' , $clob2, PDO::PARAM_LOB);
+
+while ($stmt->fetch(PDO::FETCH_BOUND)) {
+    var_dump($clob1);
+    var_dump($clob2);
+}
+print "done\n";
+
+////////////////////
+
+echo "\nFourth Query\n"; 
+
+$a = array();
+$i = 0;
+foreach($db->query("select data1 as d4_1, data2 as d4_2 from bug57702 order by id") as $row) {
+	$a[$i][0] = $row['d4_1'];
+	$a[$i][1] = $row['d4_2'];
+    $i++;
+}
+
+for ($i = 0; $i < count($a); $i++) {
+    var_dump($a[$i][0]);
+    var_dump($a[$i][1]);
+}
+
+////////////////////
+
+echo "\nFifth Query\n"; 
+
+$db->setAttribute(PDO::ATTR_STRINGIFY_FETCHES, false);  // Let's use streams
+
+// Since each column only has one lob descriptor, the last row is
+// shown twice because the lob descriptor for each column is reused in
+// the stream
+
+$a = array();
+$i = 0;
+foreach($db->query("select data1 as d4_1, data2 as d4_2 from bug57702 order by id") as $row) {
+	$a[$i][0] = $row['d4_1'];
+	$a[$i][1] = $row['d4_2'];
+    $i++;
+}
+
+for ($i = 0; $i < count($a); $i++) {
+    var_dump(stream_get_contents($a[$i][0]));
+    var_dump(stream_get_contents($a[$i][1]));
+}
+
+// Cleanup
+$query = "drop table bug57702";
+$stmt = $db->prepare($query);
+$stmt->execute();
+
+print "done\n";
+
+?>
+--EXPECTF--
+First Query
+string(11) "row 1 col 1"
+string(11) "row 1 col 2"
+string(11) "row 2 col 1"
+string(11) "row 2 col 2"
+
+Second Query
+string(11) "row 1 col 1"
+string(11) "row 1 col 2"
+string(11) "row 2 col 1"
+string(11) "row 2 col 2"
+
+Third Query
+string(11) "row 1 col 1"
+string(11) "row 1 col 2"
+string(11) "row 2 col 1"
+string(11) "row 2 col 2"
+done
+
+Fourth Query
+string(11) "row 1 col 1"
+string(11) "row 1 col 2"
+string(11) "row 2 col 1"
+string(11) "row 2 col 2"
+
+Fifth Query
+string(11) "row 2 col 1"
+string(11) "row 2 col 2"
+string(11) "row 2 col 1"
+string(11) "row 2 col 2"
+done