From d721d1a2f6cb6f82b4d75e0f34caf21d8eecc937 Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Sun, 12 Sep 2021 15:15:49 +0800
Subject: [PATCH 01/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c            |  7 +++++++
 ext/pdo/pdo_stmt.c           |  7 +++++++
 ext/pdo/php_pdo_driver.h     |  2 ++
 ext/pdo/tests/bug_78227.phpt | 27 +++++++++++++++++++++++++++
 4 files changed, 43 insertions(+)
 create mode 100644 ext/pdo/tests/bug_78227.phpt

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index d53d2ca63c0d1..75ac1127f87e1 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -25,6 +25,7 @@
 #include "php.h"
 #include "php_ini.h"
 #include "ext/standard/info.h"
+#include "ext/standard/php_string.h"
 #include "php_pdo.h"
 #include "php_pdo_driver.h"
 #include "php_pdo_int.h"
@@ -566,6 +567,12 @@ PHP_METHOD(PDO, prepare)
 
 	if (dbh->methods->preparer(dbh, statement, stmt, options)) {
 		pdo_stmt_construct(execute_data, stmt, return_value, dbstmt_ce, &ctor_args);
+
+		stmt->select_all = 0;
+		if (php_stristr(stmt->query_string, "select", sizeof(stmt->query_string) - 1, sizeof("select") - 1) &&
+			php_stristr(stmt->query_string, "*", sizeof(stmt->query_string) - 1, sizeof("*") - 1)) {
+			stmt->select_all = 1;
+		}
 		return;
 	}
 
diff --git a/ext/pdo/pdo_stmt.c b/ext/pdo/pdo_stmt.c
index 5320d50cf9c9f..5ff5d882d9878 100644
--- a/ext/pdo/pdo_stmt.c
+++ b/ext/pdo/pdo_stmt.c
@@ -461,6 +461,13 @@ PHP_METHOD(PDOStatement, execute)
 		RETURN_FALSE;
 	}
 	if (stmt->methods->executer(stmt)) {
+		/* When selecting all fields,
+		 * we have to check column name and reload columns descriptions to prevent a column name change. */
+		if (stmt->select_all) {
+			pdo_stmt_reset_columns(stmt);
+			stmt->executed = 0;
+		}
+
 		if (!stmt->executed) {
 			/* this is the first execute */
 
diff --git a/ext/pdo/php_pdo_driver.h b/ext/pdo/php_pdo_driver.h
index 91a60fe323244..99165dc4887c6 100644
--- a/ext/pdo/php_pdo_driver.h
+++ b/ext/pdo/php_pdo_driver.h
@@ -558,6 +558,8 @@ struct _pdo_stmt_t {
 	/* if true, we've already successfully executed this statement at least
 	 * once */
 	unsigned executed:1;
+	/* if true, it means select all fields */
+	unsigned select_all:1;
 	/* if true, the statement supports placeholders and can implement
 	 * bindParam() for its prepared statements, if false, PDO should
 	 * emulate prepare and bind on its behalf */
diff --git a/ext/pdo/tests/bug_78227.phpt b/ext/pdo/tests/bug_78227.phpt
new file mode 100644
index 0000000000000..6ad99f927d248
--- /dev/null
+++ b/ext/pdo/tests/bug_78227.phpt
@@ -0,0 +1,27 @@
+--TEST--
+Bug #78227 Prepared statements ignore RENAME COLUMN
+--EXTENSIONS--
+pdo
+--SKIPIF--
+<?php
+$db = new PDO('sqlite::memory:');
+$db->exec("CREATE TABLE user (id INTEGER PRIMARY KEY NOT NULL, foo VARCHAR(255) NOT NULL)");
+$db->exec("INSERT INTO user (id, foo) VALUES (10, 'test')");
+$stmt = $db->prepare("SELECT * FROM user WHERE id = :id");
+$stmt->execute(['id' => 10]);
+print_r($stmt->fetch(PDO::FETCH_ASSOC));
+$db->exec("ALTER TABLE user RENAME COLUMN foo TO bar");
+$res = $stmt->execute(['id' => 10]);
+print_r($stmt->fetch(PDO::FETCH_ASSOC));
+?>
+--EXPECT--
+Array
+(
+    [id] => 10
+    [foo] => test
+)
+Array
+(
+    [id] => 20
+    [bar] => test
+)
\ No newline at end of file

From 8509b15f9fe18fdaf71bcedb24e0038eb1bd9a21 Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Sun, 12 Sep 2021 15:22:16 +0800
Subject: [PATCH 02/25] fix bug 78227

---
 ext/pdo/tests/bug_78227.phpt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/pdo/tests/bug_78227.phpt b/ext/pdo/tests/bug_78227.phpt
index 6ad99f927d248..34f91a82fe484 100644
--- a/ext/pdo/tests/bug_78227.phpt
+++ b/ext/pdo/tests/bug_78227.phpt
@@ -24,4 +24,4 @@ Array
 (
     [id] => 20
     [bar] => test
-)
\ No newline at end of file
+)

From e8ab09af0fb855a20108ea399f8f7b63e8d5d427 Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Sun, 12 Sep 2021 16:45:37 +0800
Subject: [PATCH 03/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index 75ac1127f87e1..848b9740108fe 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -569,8 +569,8 @@ PHP_METHOD(PDO, prepare)
 		pdo_stmt_construct(execute_data, stmt, return_value, dbstmt_ce, &ctor_args);
 
 		stmt->select_all = 0;
-		if (php_stristr(stmt->query_string, "select", sizeof(stmt->query_string) - 1, sizeof("select") - 1) &&
-			php_stristr(stmt->query_string, "*", sizeof(stmt->query_string) - 1, sizeof("*") - 1)) {
+		if (php_stristr(Z_STR_P(stmt->query_string), "select", sizeof(stmt->query_string) - 1, sizeof("select") - 1) &&
+			php_stristr(Z_STR_P(stmt->query_string), "*", sizeof(stmt->query_string) - 1, sizeof("*") - 1)) {
 			stmt->select_all = 1;
 		}
 		return;

From ab5e9e3fdb4b4eb57088af1ebbd7b269d4a4036a Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Sun, 12 Sep 2021 16:58:52 +0800
Subject: [PATCH 04/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index 848b9740108fe..422471456e35a 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -569,8 +569,8 @@ PHP_METHOD(PDO, prepare)
 		pdo_stmt_construct(execute_data, stmt, return_value, dbstmt_ce, &ctor_args);
 
 		stmt->select_all = 0;
-		if (php_stristr(Z_STR_P(stmt->query_string), "select", sizeof(stmt->query_string) - 1, sizeof("select") - 1) &&
-			php_stristr(Z_STR_P(stmt->query_string), "*", sizeof(stmt->query_string) - 1, sizeof("*") - 1)) {
+		if (php_stristr(ZSTR_VAL(stmt->query_string), "select", sizeof(stmt->query_string) - 1, sizeof("select") - 1) &&
+			php_stristr(ZSTR_VAL(stmt->query_string), "*", sizeof(stmt->query_string) - 1, sizeof("*") - 1)) {
 			stmt->select_all = 1;
 		}
 		return;

From 20f25105d49c471015bb5f90ee308e70aaa977ba Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Sun, 12 Sep 2021 17:02:50 +0800
Subject: [PATCH 05/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index 422471456e35a..05a992a7c0c94 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -569,8 +569,8 @@ PHP_METHOD(PDO, prepare)
 		pdo_stmt_construct(execute_data, stmt, return_value, dbstmt_ce, &ctor_args);
 
 		stmt->select_all = 0;
-		if (php_stristr(ZSTR_VAL(stmt->query_string), "select", sizeof(stmt->query_string) - 1, sizeof("select") - 1) &&
-			php_stristr(ZSTR_VAL(stmt->query_string), "*", sizeof(stmt->query_string) - 1, sizeof("*") - 1)) {
+		if (php_stristr(ZSTR_VAL(stmt->query_string), "select", ZSTR_LEN(stmt->query_string), sizeof("select") - 1) &&
+			php_stristr(ZSTR_VAL(stmt->query_string), "*", ZSTR_LEN(stmt->query_string), sizeof("*") - 1)) {
 			stmt->select_all = 1;
 		}
 		return;

From efb4f0d627cd070c684bf1f213260318f6e9629c Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Sun, 12 Sep 2021 17:58:48 +0800
Subject: [PATCH 06/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index 05a992a7c0c94..8e9d24c340aa0 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -569,8 +569,14 @@ PHP_METHOD(PDO, prepare)
 		pdo_stmt_construct(execute_data, stmt, return_value, dbstmt_ce, &ctor_args);
 
 		stmt->select_all = 0;
-		if (php_stristr(ZSTR_VAL(stmt->query_string), "select", ZSTR_LEN(stmt->query_string), sizeof("select") - 1) &&
-			php_stristr(ZSTR_VAL(stmt->query_string), "*", ZSTR_LEN(stmt->query_string), sizeof("*") - 1)) {
+
+		char *action = estrdup("select");
+		char *wildcard = estrdup("*");
+		char *query_string_val = ZSTR_VAL(stmt->query_string);
+		size_t query_string_len = ZSTR_LEN(stmt->query_string);
+
+		if (php_stristr(query_string_val, action, query_string_len, sizeof("select") - 1) &&
+			php_stristr(query_string_val, wildcard, query_string_len, sizeof("*") - 1)) {
 			stmt->select_all = 1;
 		}
 		return;

From b758023323dfdb92457c8eaf1fd97214a211a66a Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Sun, 12 Sep 2021 18:08:28 +0800
Subject: [PATCH 07/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c  | 2 ++
 ext/pdo/pdo_stmt.c | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index 8e9d24c340aa0..c4197d9b810f6 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -579,6 +579,8 @@ PHP_METHOD(PDO, prepare)
 			php_stristr(query_string_val, wildcard, query_string_len, sizeof("*") - 1)) {
 			stmt->select_all = 1;
 		}
+		efree(action);
+		efree(wildcard);
 		return;
 	}
 
diff --git a/ext/pdo/pdo_stmt.c b/ext/pdo/pdo_stmt.c
index 5ff5d882d9878..21b28613ea64c 100644
--- a/ext/pdo/pdo_stmt.c
+++ b/ext/pdo/pdo_stmt.c
@@ -463,7 +463,7 @@ PHP_METHOD(PDOStatement, execute)
 	if (stmt->methods->executer(stmt)) {
 		/* When selecting all fields,
 		 * we have to check column name and reload columns descriptions to prevent a column name change. */
-		if (stmt->select_all) {
+		if (stmt->select_all && stmt->columns) {
 			pdo_stmt_reset_columns(stmt);
 			stmt->executed = 0;
 		}

From 00b3feac8c1f248d3151221f5994fbba3c246c21 Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Sun, 12 Sep 2021 18:22:47 +0800
Subject: [PATCH 08/25] fix bug 78227

---
 ext/pdo/pdo_stmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/pdo/pdo_stmt.c b/ext/pdo/pdo_stmt.c
index 21b28613ea64c..8d1e071c93964 100644
--- a/ext/pdo/pdo_stmt.c
+++ b/ext/pdo/pdo_stmt.c
@@ -464,7 +464,7 @@ PHP_METHOD(PDOStatement, execute)
 		/* When selecting all fields,
 		 * we have to check column name and reload columns descriptions to prevent a column name change. */
 		if (stmt->select_all && stmt->columns) {
-			pdo_stmt_reset_columns(stmt);
+			php_pdo_stmt_set_column_count(stmt, stmt->column_count);
 			stmt->executed = 0;
 		}
 

From bfd26f3dfc27ba8b1f3f232f2b2245bd51a1afd3 Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Sun, 12 Sep 2021 18:35:29 +0800
Subject: [PATCH 09/25] fix bug 78227

---
 ext/pdo/pdo_stmt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ext/pdo/pdo_stmt.c b/ext/pdo/pdo_stmt.c
index 8d1e071c93964..e6f374ba237d2 100644
--- a/ext/pdo/pdo_stmt.c
+++ b/ext/pdo/pdo_stmt.c
@@ -464,7 +464,9 @@ PHP_METHOD(PDOStatement, execute)
 		/* When selecting all fields,
 		 * we have to check column name and reload columns descriptions to prevent a column name change. */
 		if (stmt->select_all && stmt->columns) {
-			php_pdo_stmt_set_column_count(stmt, stmt->column_count);
+			int count = stmt->column_count;
+			pdo_stmt_reset_columns(stmt);
+			stmt->column_count = count;
 			stmt->executed = 0;
 		}
 

From 5b8dd49bf43cec9baea79fc646bced93cf89d381 Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Mon, 13 Sep 2021 22:24:29 +0800
Subject: [PATCH 10/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c            | 1 -
 ext/pdo/tests/bug_78227.phpt | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index c4197d9b810f6..6f350e61bcce4 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -569,7 +569,6 @@ PHP_METHOD(PDO, prepare)
 		pdo_stmt_construct(execute_data, stmt, return_value, dbstmt_ce, &ctor_args);
 
 		stmt->select_all = 0;
-
 		char *action = estrdup("select");
 		char *wildcard = estrdup("*");
 		char *query_string_val = ZSTR_VAL(stmt->query_string);
diff --git a/ext/pdo/tests/bug_78227.phpt b/ext/pdo/tests/bug_78227.phpt
index 34f91a82fe484..7540d66cc300e 100644
--- a/ext/pdo/tests/bug_78227.phpt
+++ b/ext/pdo/tests/bug_78227.phpt
@@ -2,7 +2,7 @@
 Bug #78227 Prepared statements ignore RENAME COLUMN
 --EXTENSIONS--
 pdo
---SKIPIF--
+--FILE--
 <?php
 $db = new PDO('sqlite::memory:');
 $db->exec("CREATE TABLE user (id INTEGER PRIMARY KEY NOT NULL, foo VARCHAR(255) NOT NULL)");

From c2f8c0ac65c6db58ec51b6c99633b4e2fe1f0c3f Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Mon, 13 Sep 2021 23:05:04 +0800
Subject: [PATCH 11/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c | 34 +++++++++++++++++++++++-----------
 1 file changed, 23 insertions(+), 11 deletions(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index 6f350e61bcce4..db4cf630e7c10 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -487,6 +487,29 @@ static void pdo_stmt_construct(zend_execute_data *execute_data, pdo_stmt_t *stmt
 }
 /* }}} */
 
+static void pdo_stmt_check_select_all(pdo_stmt_t *stmt) /* {{{ */
+{
+	stmt->select_all = 0;
+	char *action = estrdup("select");
+	char *wildcard = estrdup("*");
+
+	zend_string *statement = zend_string_dup(stmt->query_string, 0);
+	char *query_string_val = ZSTR_VAL(statement));
+	size_t query_string_len = ZSTR_LEN(statement);
+	php_strtolower(query_string_val, query_string_len);
+
+	if (php_memnstr(query_string_val, action, sizeof("select") - 1, query_string_val + query_string_len) &&
+		php_memnstr(query_string_val, wildcard, sizeof("*") - 1, query_string_val + query_string_len)
+	) {
+		stmt->select_all = 1;
+	}
+
+	efree(action);
+	efree(wildcard);
+	zend_string_release(statement);
+}
+/* }}} */
+
 /* {{{ Prepares a statement for execution and returns a statement object */
 PHP_METHOD(PDO, prepare)
 {
@@ -568,18 +591,7 @@ PHP_METHOD(PDO, prepare)
 	if (dbh->methods->preparer(dbh, statement, stmt, options)) {
 		pdo_stmt_construct(execute_data, stmt, return_value, dbstmt_ce, &ctor_args);
 
-		stmt->select_all = 0;
-		char *action = estrdup("select");
-		char *wildcard = estrdup("*");
-		char *query_string_val = ZSTR_VAL(stmt->query_string);
-		size_t query_string_len = ZSTR_LEN(stmt->query_string);
 
-		if (php_stristr(query_string_val, action, query_string_len, sizeof("select") - 1) &&
-			php_stristr(query_string_val, wildcard, query_string_len, sizeof("*") - 1)) {
-			stmt->select_all = 1;
-		}
-		efree(action);
-		efree(wildcard);
 		return;
 	}
 

From a3bf6e3de7141e2fddbbb8f1a6ea4e8a89f72d68 Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Mon, 13 Sep 2021 23:07:44 +0800
Subject: [PATCH 12/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index db4cf630e7c10..aa1143f1fbcdf 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -490,22 +490,18 @@ static void pdo_stmt_construct(zend_execute_data *execute_data, pdo_stmt_t *stmt
 static void pdo_stmt_check_select_all(pdo_stmt_t *stmt) /* {{{ */
 {
 	stmt->select_all = 0;
-	char *action = estrdup("select");
-	char *wildcard = estrdup("*");
 
 	zend_string *statement = zend_string_dup(stmt->query_string, 0);
 	char *query_string_val = ZSTR_VAL(statement));
 	size_t query_string_len = ZSTR_LEN(statement);
 	php_strtolower(query_string_val, query_string_len);
 
-	if (php_memnstr(query_string_val, action, sizeof("select") - 1, query_string_val + query_string_len) &&
-		php_memnstr(query_string_val, wildcard, sizeof("*") - 1, query_string_val + query_string_len)
+	if (php_memnstr(query_string_val, "select", sizeof("select") - 1, query_string_val + query_string_len) &&
+		php_memnstr(query_string_val, "*", sizeof("*") - 1, query_string_val + query_string_len)
 	) {
 		stmt->select_all = 1;
 	}
 
-	efree(action);
-	efree(wildcard);
 	zend_string_release(statement);
 }
 /* }}} */

From 0df9f96aec6c63c50ef74167008af8eecf442d0f Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Mon, 13 Sep 2021 23:10:19 +0800
Subject: [PATCH 13/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index aa1143f1fbcdf..39478d4576ba0 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -586,8 +586,7 @@ PHP_METHOD(PDO, prepare)
 
 	if (dbh->methods->preparer(dbh, statement, stmt, options)) {
 		pdo_stmt_construct(execute_data, stmt, return_value, dbstmt_ce, &ctor_args);
-
-
+		pdo_stmt_check_select_all(stmt);
 		return;
 	}
 

From b6ec42517ddafa0d86abe04827753f8891bf6267 Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Mon, 13 Sep 2021 23:15:41 +0800
Subject: [PATCH 14/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index 39478d4576ba0..5fa5df9ce343c 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -489,16 +489,14 @@ static void pdo_stmt_construct(zend_execute_data *execute_data, pdo_stmt_t *stmt
 
 static void pdo_stmt_check_select_all(pdo_stmt_t *stmt) /* {{{ */
 {
-	stmt->select_all = 0;
-
 	zend_string *statement = zend_string_dup(stmt->query_string, 0);
 	char *query_string_val = ZSTR_VAL(statement));
 	size_t query_string_len = ZSTR_LEN(statement);
+	const char *end = query_string_val + query_string_len;
 	php_strtolower(query_string_val, query_string_len);
 
-	if (php_memnstr(query_string_val, "select", sizeof("select") - 1, query_string_val + query_string_len) &&
-		php_memnstr(query_string_val, "*", sizeof("*") - 1, query_string_val + query_string_len)
-	) {
+	stmt->select_all = 0;
+	if (php_memnstr(query_string_val, "select", sizeof("select") - 1, end) && php_memnstr(query_string_val, "*", sizeof("*") - 1, end)) {
 		stmt->select_all = 1;
 	}
 

From 80e645ce095cd557adda59aa5082c4ef3e499f78 Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Mon, 13 Sep 2021 23:23:46 +0800
Subject: [PATCH 15/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index 5fa5df9ce343c..05616ed047254 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -489,8 +489,9 @@ static void pdo_stmt_construct(zend_execute_data *execute_data, pdo_stmt_t *stmt
 
 static void pdo_stmt_check_select_all(pdo_stmt_t *stmt) /* {{{ */
 {
+	/* Avoid polluting stmt->query_string */
 	zend_string *statement = zend_string_dup(stmt->query_string, 0);
-	char *query_string_val = ZSTR_VAL(statement));
+	char *query_string_val = ZSTR_VAL(statement);
 	size_t query_string_len = ZSTR_LEN(statement);
 	const char *end = query_string_val + query_string_len;
 	php_strtolower(query_string_val, query_string_len);

From e087b19258488d1e4217ce4b19088ac87076cad0 Mon Sep 17 00:00:00 2001
From: MARiA so cute <33935209+NathanFreeman@users.noreply.github.com>
Date: Tue, 14 Sep 2021 10:50:18 +0800
Subject: [PATCH 16/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index 05616ed047254..39cc9844c33be 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -489,15 +489,16 @@ static void pdo_stmt_construct(zend_execute_data *execute_data, pdo_stmt_t *stmt
 
 static void pdo_stmt_check_select_all(pdo_stmt_t *stmt) /* {{{ */
 {
-	/* Avoid polluting stmt->query_string */
-	zend_string *statement = zend_string_dup(stmt->query_string, 0);
-	char *query_string_val = ZSTR_VAL(statement);
-	size_t query_string_len = ZSTR_LEN(statement);
-	const char *end = query_string_val + query_string_len;
-	php_strtolower(query_string_val, query_string_len);
+	/* Avoid modifying stmt->query_string */
+	zend_string *statement = zend_string_init(ZSTR_VAL(stmt->query_string), ZSTR_LEN(stmt->query_string), 0);
+
+	char *statement_val = ZSTR_VAL(statement_val);
+	size_t statement_len = ZSTR_LEN(statement_val);
+	char *end = statement_val + statement_len;
+	php_strtolower(statement_val, statement_len);
 
 	stmt->select_all = 0;
-	if (php_memnstr(query_string_val, "select", sizeof("select") - 1, end) && php_memnstr(query_string_val, "*", sizeof("*") - 1, end)) {
+	if (php_memnstr(statement_val, "select", sizeof("select") - 1, end) && php_memnstr(statement_val, "*", sizeof("*") - 1, end)) {
 		stmt->select_all = 1;
 	}
 

From 87fa99c096f3425300d64cb39a681e1d8f8d3505 Mon Sep 17 00:00:00 2001
From: MARiA so cute <33935209+NathanFreeman@users.noreply.github.com>
Date: Tue, 14 Sep 2021 11:01:38 +0800
Subject: [PATCH 17/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index 39cc9844c33be..da0b53c936a3c 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -491,7 +491,6 @@ static void pdo_stmt_check_select_all(pdo_stmt_t *stmt) /* {{{ */
 {
 	/* Avoid modifying stmt->query_string */
 	zend_string *statement = zend_string_init(ZSTR_VAL(stmt->query_string), ZSTR_LEN(stmt->query_string), 0);
-
 	char *statement_val = ZSTR_VAL(statement_val);
 	size_t statement_len = ZSTR_LEN(statement_val);
 	char *end = statement_val + statement_len;

From 914a145ffd8fc24539851a7da3b47fa50616bff7 Mon Sep 17 00:00:00 2001
From: MARiA so cute <33935209+NathanFreeman@users.noreply.github.com>
Date: Tue, 14 Sep 2021 11:10:12 +0800
Subject: [PATCH 18/25] fix bug 78227

---
 ext/pdo/pdo_dbh.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index da0b53c936a3c..d324708558ff5 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -491,8 +491,8 @@ static void pdo_stmt_check_select_all(pdo_stmt_t *stmt) /* {{{ */
 {
 	/* Avoid modifying stmt->query_string */
 	zend_string *statement = zend_string_init(ZSTR_VAL(stmt->query_string), ZSTR_LEN(stmt->query_string), 0);
-	char *statement_val = ZSTR_VAL(statement_val);
-	size_t statement_len = ZSTR_LEN(statement_val);
+	char *statement_val = ZSTR_VAL(statement);
+	size_t statement_len = ZSTR_LEN(statement);
 	char *end = statement_val + statement_len;
 	php_strtolower(statement_val, statement_len);
 

From c6fce818534bc0b39ba713fc1140383b8b9193bc Mon Sep 17 00:00:00 2001
From: MARiA so cute <33935209+NathanFreeman@users.noreply.github.com>
Date: Tue, 14 Sep 2021 11:20:11 +0800
Subject: [PATCH 19/25] fix bug 78227

---
 ext/pdo/tests/bug_78227.phpt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ext/pdo/tests/bug_78227.phpt b/ext/pdo/tests/bug_78227.phpt
index 7540d66cc300e..2e6705d5ae646 100644
--- a/ext/pdo/tests/bug_78227.phpt
+++ b/ext/pdo/tests/bug_78227.phpt
@@ -22,6 +22,6 @@ Array
 )
 Array
 (
-    [id] => 20
+    [id] => 10
     [bar] => test
-)
+)
\ No newline at end of file

From 57941463c8c3315b111c786f4212895e99943856 Mon Sep 17 00:00:00 2001
From: MARiA so cute <33935209+NathanFreeman@users.noreply.github.com>
Date: Wed, 15 Sep 2021 13:14:01 +0800
Subject: [PATCH 20/25] rename pdo_stmt_check_select_all to
 pdo_stmt_set_select_all

---
 ext/pdo/pdo_dbh.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ext/pdo/pdo_dbh.c b/ext/pdo/pdo_dbh.c
index d324708558ff5..30316bd11aa10 100644
--- a/ext/pdo/pdo_dbh.c
+++ b/ext/pdo/pdo_dbh.c
@@ -487,7 +487,7 @@ static void pdo_stmt_construct(zend_execute_data *execute_data, pdo_stmt_t *stmt
 }
 /* }}} */
 
-static void pdo_stmt_check_select_all(pdo_stmt_t *stmt) /* {{{ */
+static void pdo_stmt_set_select_all(pdo_stmt_t *stmt) /* {{{ */
 {
 	/* Avoid modifying stmt->query_string */
 	zend_string *statement = zend_string_init(ZSTR_VAL(stmt->query_string), ZSTR_LEN(stmt->query_string), 0);
@@ -585,7 +585,7 @@ PHP_METHOD(PDO, prepare)
 
 	if (dbh->methods->preparer(dbh, statement, stmt, options)) {
 		pdo_stmt_construct(execute_data, stmt, return_value, dbstmt_ce, &ctor_args);
-		pdo_stmt_check_select_all(stmt);
+		pdo_stmt_set_select_all(stmt);
 		return;
 	}
 

From 836fed04bcbc8d701862fd46fc424bd728676fe2 Mon Sep 17 00:00:00 2001
From: MARiA so cute <33935209+NathanFreeman@users.noreply.github.com>
Date: Thu, 16 Sep 2021 10:07:26 +0800
Subject: [PATCH 21/25] change unsigned _reserved:29 to unsigned _reserved:28
 perfect unit test

---
 ext/pdo/php_pdo_driver.h     |  2 +-
 ext/pdo/tests/bug_78227.phpt | 50 +++++++++++++++++++++++++++++-------
 2 files changed, 42 insertions(+), 10 deletions(-)

diff --git a/ext/pdo/php_pdo_driver.h b/ext/pdo/php_pdo_driver.h
index 99165dc4887c6..8323140b677e8 100644
--- a/ext/pdo/php_pdo_driver.h
+++ b/ext/pdo/php_pdo_driver.h
@@ -565,7 +565,7 @@ struct _pdo_stmt_t {
 	 * emulate prepare and bind on its behalf */
 	unsigned supports_placeholders:2;
 
-	unsigned _reserved:29;
+	unsigned _reserved:28;
 
 	/* the number of columns in the result set; not valid until after
 	 * the statement has been executed at least once.  In some cases, might
diff --git a/ext/pdo/tests/bug_78227.phpt b/ext/pdo/tests/bug_78227.phpt
index 2e6705d5ae646..28ff24e3b6d6d 100644
--- a/ext/pdo/tests/bug_78227.phpt
+++ b/ext/pdo/tests/bug_78227.phpt
@@ -2,17 +2,49 @@
 Bug #78227 Prepared statements ignore RENAME COLUMN
 --EXTENSIONS--
 pdo
+--SKIPIF--
+<?php
+	$dir = getenv('REDIR_TEST_DIR');
+	if (false == $dir) die('skip no driver');
+	require_once $dir . 'pdo_test.inc';
+	PDOTest::skip();
+?>
 --FILE--
 <?php
-$db = new PDO('sqlite::memory:');
-$db->exec("CREATE TABLE user (id INTEGER PRIMARY KEY NOT NULL, foo VARCHAR(255) NOT NULL)");
-$db->exec("INSERT INTO user (id, foo) VALUES (10, 'test')");
-$stmt = $db->prepare("SELECT * FROM user WHERE id = :id");
-$stmt->execute(['id' => 10]);
-print_r($stmt->fetch(PDO::FETCH_ASSOC));
-$db->exec("ALTER TABLE user RENAME COLUMN foo TO bar");
-$res = $stmt->execute(['id' => 10]);
-print_r($stmt->fetch(PDO::FETCH_ASSOC));
+	if (getenv('REDIR_TEST_DIR') === false) putenv('REDIR_TEST_DIR='.__DIR__ . '/../../pdo/tests/');
+	require_once getenv('REDIR_TEST_DIR') . 'pdo_test.inc';
+	$db = PDOTest::factory();
+	$db->exec("CREATE TABLE bug_78227 (id INTEGER PRIMARY KEY NOT NULL, foo VARCHAR(255) NOT NULL)");
+	$db->exec("INSERT INTO bug_78227 (id, foo) VALUES (10, 'test')");
+	$stmt = $db->prepare("SELECT * FROM bug_78227 WHERE id = :id");
+	$stmt->execute(['id' => 10]);
+	print_r($stmt->fetch(PDO::FETCH_ASSOC));
+
+	$driver = $db->getAttribute(PDO::ATTR_DRIVER_NAME);
+	switch(true){
+		case "mysql" == $driver:
+			$db->exec("ALTER TABLE bug_78227 change foo bat varchar(20)");
+			break;
+		case "sqlite" == $driver:
+		case "oci" == $driver:
+		case "pgsql" == $driver:
+			$db->exec("ALTER TABLE bug_78227 rename column foo to bar");
+			break;
+		case "firebird" == $driver:
+			$db->exec("ALTER TABLE bug_78227 alter column foo to bar");
+			break;
+		case "mssql" == $driver:
+			$db->exec("execute sp_rename 'bug_78227.foo','bar','column'");
+			break;
+		case "sybase" == $driver:
+			$db->exec("sp_rename 'bug_78227.foo','bar','column'");
+			break;
+		default:
+			die('skip unknown driver');
+	}
+
+	$res = $stmt->execute(['id' => 10]);
+	print_r($stmt->fetch(PDO::FETCH_ASSOC));
 ?>
 --EXPECT--
 Array

From 83cdadc3ad59ee4a0e7a91e1224e5cbf9f855609 Mon Sep 17 00:00:00 2001
From: MARiA so cute <33935209+NathanFreeman@users.noreply.github.com>
Date: Thu, 16 Sep 2021 11:47:30 +0800
Subject: [PATCH 22/25] perfect unit test

---
 ext/pdo/tests/bug_78227.phpt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/ext/pdo/tests/bug_78227.phpt b/ext/pdo/tests/bug_78227.phpt
index 28ff24e3b6d6d..7df18aa129125 100644
--- a/ext/pdo/tests/bug_78227.phpt
+++ b/ext/pdo/tests/bug_78227.phpt
@@ -14,6 +14,8 @@ pdo
 	if (getenv('REDIR_TEST_DIR') === false) putenv('REDIR_TEST_DIR='.__DIR__ . '/../../pdo/tests/');
 	require_once getenv('REDIR_TEST_DIR') . 'pdo_test.inc';
 	$db = PDOTest::factory();
+	$db->exec("drop table bug_78227");
+
 	$db->exec("CREATE TABLE bug_78227 (id INTEGER PRIMARY KEY NOT NULL, foo VARCHAR(255) NOT NULL)");
 	$db->exec("INSERT INTO bug_78227 (id, foo) VALUES (10, 'test')");
 	$stmt = $db->prepare("SELECT * FROM bug_78227 WHERE id = :id");
@@ -46,6 +48,13 @@ pdo
 	$res = $stmt->execute(['id' => 10]);
 	print_r($stmt->fetch(PDO::FETCH_ASSOC));
 ?>
+--CLEAN--
+<?php
+	if (getenv('REDIR_TEST_DIR') === false) putenv('REDIR_TEST_DIR='.__DIR__ . '/../../pdo/tests/');
+	require_once getenv('REDIR_TEST_DIR') . 'pdo_test.inc';
+	$db = PDOTest::factory();
+	$db->exec("drop table bug_78227");
+?>
 --EXPECT--
 Array
 (

From b1f4e59521603b4a27fd8ac95c6a990a9fecc653 Mon Sep 17 00:00:00 2001
From: MARiA so cute <33935209+NathanFreeman@users.noreply.github.com>
Date: Thu, 16 Sep 2021 14:32:40 +0800
Subject: [PATCH 23/25] unit test

---
 ext/pdo/tests/bug_78227.phpt | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/ext/pdo/tests/bug_78227.phpt b/ext/pdo/tests/bug_78227.phpt
index 7df18aa129125..020fd0895d16e 100644
--- a/ext/pdo/tests/bug_78227.phpt
+++ b/ext/pdo/tests/bug_78227.phpt
@@ -14,7 +14,7 @@ pdo
 	if (getenv('REDIR_TEST_DIR') === false) putenv('REDIR_TEST_DIR='.__DIR__ . '/../../pdo/tests/');
 	require_once getenv('REDIR_TEST_DIR') . 'pdo_test.inc';
 	$db = PDOTest::factory();
-	$db->exec("drop table bug_78227");
+	@$db->exec("drop table bug_78227");
 
 	$db->exec("CREATE TABLE bug_78227 (id INTEGER PRIMARY KEY NOT NULL, foo VARCHAR(255) NOT NULL)");
 	$db->exec("INSERT INTO bug_78227 (id, foo) VALUES (10, 'test')");
@@ -28,6 +28,8 @@ pdo
 			$db->exec("ALTER TABLE bug_78227 change foo bat varchar(20)");
 			break;
 		case "sqlite" == $driver:
+			$db->exec("ALTER TABLE bug_78227 rename foo to bar");
+			break;
 		case "oci" == $driver:
 		case "pgsql" == $driver:
 			$db->exec("ALTER TABLE bug_78227 rename column foo to bar");
@@ -36,13 +38,13 @@ pdo
 			$db->exec("ALTER TABLE bug_78227 alter column foo to bar");
 			break;
 		case "mssql" == $driver:
+		case "dblib" == $driver:
+		case "odbc" == $driver:
 			$db->exec("execute sp_rename 'bug_78227.foo','bar','column'");
 			break;
 		case "sybase" == $driver:
 			$db->exec("sp_rename 'bug_78227.foo','bar','column'");
 			break;
-		default:
-			die('skip unknown driver');
 	}
 
 	$res = $stmt->execute(['id' => 10]);

From cd969fbc81979e3327ef1eb8c6fdf6ea265fc8b7 Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Thu, 16 Sep 2021 19:36:57 +0800
Subject: [PATCH 24/25] fix cached plan must not change result type of pgsql

---
 ext/pdo/tests/bug_78227.phpt    | 11 +++++++----
 ext/pdo_pgsql/pgsql_statement.c |  5 ++++-
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/ext/pdo/tests/bug_78227.phpt b/ext/pdo/tests/bug_78227.phpt
index 020fd0895d16e..132ec95602d1c 100644
--- a/ext/pdo/tests/bug_78227.phpt
+++ b/ext/pdo/tests/bug_78227.phpt
@@ -16,8 +16,11 @@ pdo
 	$db = PDOTest::factory();
 	@$db->exec("drop table bug_78227");
 
-	$db->exec("CREATE TABLE bug_78227 (id INTEGER PRIMARY KEY NOT NULL, foo VARCHAR(255) NOT NULL)");
-	$db->exec("INSERT INTO bug_78227 (id, foo) VALUES (10, 'test')");
+	$db->exec("CREATE TABLE bug_78227 (id int, foo varchar(20))");
+
+	$stmt = $db->prepare("INSERT INTO bug_78227 (id, foo) VALUES (?, ?)");
+	$stmt->execute([10, 'test']);
+
 	$stmt = $db->prepare("SELECT * FROM bug_78227 WHERE id = :id");
 	$stmt->execute(['id' => 10]);
 	print_r($stmt->fetch(PDO::FETCH_ASSOC));
@@ -25,7 +28,7 @@ pdo
 	$driver = $db->getAttribute(PDO::ATTR_DRIVER_NAME);
 	switch(true){
 		case "mysql" == $driver:
-			$db->exec("ALTER TABLE bug_78227 change foo bat varchar(20)");
+			$db->exec("ALTER TABLE bug_78227 change foo bar varchar(20)");
 			break;
 		case "sqlite" == $driver:
 			$db->exec("ALTER TABLE bug_78227 rename foo to bar");
@@ -55,7 +58,7 @@ pdo
 	if (getenv('REDIR_TEST_DIR') === false) putenv('REDIR_TEST_DIR='.__DIR__ . '/../../pdo/tests/');
 	require_once getenv('REDIR_TEST_DIR') . 'pdo_test.inc';
 	$db = PDOTest::factory();
-	$db->exec("drop table bug_78227");
+	@$db->exec("drop table bug_78227");
 ?>
 --EXPECT--
 Array
diff --git a/ext/pdo_pgsql/pgsql_statement.c b/ext/pdo_pgsql/pgsql_statement.c
index 03ac14c32db9a..9a14254f9642a 100644
--- a/ext/pdo_pgsql/pgsql_statement.c
+++ b/ext/pdo_pgsql/pgsql_statement.c
@@ -173,7 +173,10 @@ static int pgsql_stmt_execute(pdo_stmt_t *stmt)
 	} else if (S->stmt_name) {
 		/* using a prepared statement */
 
-		if (!S->is_prepared) {
+		/* it will issue a warning that cached plan must not change result type if altering the table,
+		 * so wo have to reset S->result to solve it.
+		 * stmt->select_all means select all column.*/
+		if (!S->is_prepared || stmt->select_all) {
 stmt_retry:
 			/* we deferred the prepare until now, because we didn't
 			 * know anything about the parameter types; now we do */

From 73329e8634a50a287f05a352ae8b508edd4d045c Mon Sep 17 00:00:00 2001
From: NathanFreeman <1056159381@qq.com>
Date: Thu, 16 Sep 2021 21:02:09 +0800
Subject: [PATCH 25/25] fix cached plan must not change result type of pgsql

---
 ext/pdo/tests/bug_78227.phpt | 90 ++++++++++++++++++------------------
 1 file changed, 45 insertions(+), 45 deletions(-)

diff --git a/ext/pdo/tests/bug_78227.phpt b/ext/pdo/tests/bug_78227.phpt
index 132ec95602d1c..47ad119ef5441 100644
--- a/ext/pdo/tests/bug_78227.phpt
+++ b/ext/pdo/tests/bug_78227.phpt
@@ -4,61 +4,61 @@ Bug #78227 Prepared statements ignore RENAME COLUMN
 pdo
 --SKIPIF--
 <?php
-	$dir = getenv('REDIR_TEST_DIR');
-	if (false == $dir) die('skip no driver');
-	require_once $dir . 'pdo_test.inc';
-	PDOTest::skip();
+$dir = getenv('REDIR_TEST_DIR');
+if (false == $dir) die('skip no driver');
+require_once $dir . 'pdo_test.inc';
+PDOTest::skip();
 ?>
 --FILE--
 <?php
-	if (getenv('REDIR_TEST_DIR') === false) putenv('REDIR_TEST_DIR='.__DIR__ . '/../../pdo/tests/');
-	require_once getenv('REDIR_TEST_DIR') . 'pdo_test.inc';
-	$db = PDOTest::factory();
-	@$db->exec("drop table bug_78227");
+if (getenv('REDIR_TEST_DIR') === false) putenv('REDIR_TEST_DIR='.__DIR__ . '/../../pdo/tests/');
+require_once getenv('REDIR_TEST_DIR') . 'pdo_test.inc';
+$db = PDOTest::factory();
+@$db->exec("drop table test");
 
-	$db->exec("CREATE TABLE bug_78227 (id int, foo varchar(20))");
+$db->exec("CREATE TABLE test (id int, foo varchar(20))");
 
-	$stmt = $db->prepare("INSERT INTO bug_78227 (id, foo) VALUES (?, ?)");
-	$stmt->execute([10, 'test']);
+$stmt = $db->prepare("INSERT INTO test (id, foo) VALUES (?, ?)");
+$stmt->execute([10, 'test']);
 
-	$stmt = $db->prepare("SELECT * FROM bug_78227 WHERE id = :id");
-	$stmt->execute(['id' => 10]);
-	print_r($stmt->fetch(PDO::FETCH_ASSOC));
+$stmt = $db->prepare("SELECT * FROM test WHERE id = :id");
+$stmt->execute(['id' => 10]);
+print_r($stmt->fetch(PDO::FETCH_ASSOC));
 
-	$driver = $db->getAttribute(PDO::ATTR_DRIVER_NAME);
-	switch(true){
-		case "mysql" == $driver:
-			$db->exec("ALTER TABLE bug_78227 change foo bar varchar(20)");
-			break;
-		case "sqlite" == $driver:
-			$db->exec("ALTER TABLE bug_78227 rename foo to bar");
-			break;
-		case "oci" == $driver:
-		case "pgsql" == $driver:
-			$db->exec("ALTER TABLE bug_78227 rename column foo to bar");
-			break;
-		case "firebird" == $driver:
-			$db->exec("ALTER TABLE bug_78227 alter column foo to bar");
-			break;
-		case "mssql" == $driver:
-		case "dblib" == $driver:
-		case "odbc" == $driver:
-			$db->exec("execute sp_rename 'bug_78227.foo','bar','column'");
-			break;
-		case "sybase" == $driver:
-			$db->exec("sp_rename 'bug_78227.foo','bar','column'");
-			break;
-	}
+$driver = $db->getAttribute(PDO::ATTR_DRIVER_NAME);
+switch(true){
+    case "mysql" == $driver:
+        $db->exec("ALTER TABLE test change foo bar varchar(20)");
+        break;
+    case "sqlite" == $driver:
+        $db->exec("ALTER TABLE test rename column foo to bar");
+        break;
+    case "oci" == $driver:
+    case "pgsql" == $driver:
+        $db->exec("ALTER TABLE test rename column foo to bar");
+        break;
+    case "firebird" == $driver:
+        $db->exec("ALTER TABLE test alter column foo to bar");
+        break;
+    case "mssql" == $driver:
+    case "dblib" == $driver:
+    case "odbc" == $driver:
+        $db->exec("execute sp_rename 'test.foo','bar','column'");
+        break;
+    case "sybase" == $driver:
+        $db->exec("sp_rename 'test.foo','bar','column'");
+        break;
+}
 
-	$res = $stmt->execute(['id' => 10]);
-	print_r($stmt->fetch(PDO::FETCH_ASSOC));
+$res = $stmt->execute(['id' => 10]);
+print_r($stmt->fetch(PDO::FETCH_ASSOC));
 ?>
 --CLEAN--
 <?php
-	if (getenv('REDIR_TEST_DIR') === false) putenv('REDIR_TEST_DIR='.__DIR__ . '/../../pdo/tests/');
-	require_once getenv('REDIR_TEST_DIR') . 'pdo_test.inc';
-	$db = PDOTest::factory();
-	@$db->exec("drop table bug_78227");
+if (getenv('REDIR_TEST_DIR') === false) putenv('REDIR_TEST_DIR='.__DIR__ . '/../../pdo/tests/');
+require_once getenv('REDIR_TEST_DIR') . 'pdo_test.inc';
+$db = PDOTest::factory();
+@$db->exec("drop table test");
 ?>
 --EXPECT--
 Array
@@ -70,4 +70,4 @@ Array
 (
     [id] => 10
     [bar] => test
-)
\ No newline at end of file
+)