Remove support for colon prefix in statement parameters

UPGRADE.md

@@ -1,5 +1,9 @@
 # Upgrade to 3.0
 
+## BC BREAK: leading in named parameter names not supported
+
+The usage of the colon prefix when binding named parameters is no longer supported.
+
 ## BC BREAK `Doctrine\DBAL\Abstraction\Result` removed
 
 The `Doctrine\DBAL\Abstraction\Result` interface is removed. Use the `Doctrine\DBAL\Result` class instead.

src/SQLParserUtils.php

@@ -269,11 +269,6 @@ private static function extractParam($paramName, $paramsOrTypes, $isParam, $defa
             return $paramsOrTypes[$paramName];
         }
 
-        // Hash keys can be prefixed with a colon for compatibility
-        if (array_key_exists(':' . $paramName, $paramsOrTypes)) {
-            return $paramsOrTypes[':' . $paramName];
-        }
-
         if ($defaultValue !== null) {
             return $defaultValue;
         }

tests/Functional/Driver/OCI8/StatementTest.php

@@ -66,7 +66,7 @@ public static function queryConversionProvider(): iterable
             ],
             'named' => [
                 'SELECT :COL COL1 FROM DUAL',
-                [':COL' => 1],
+                ['COL' => 1],
                 ['COL1' => 1],
             ],
             'literal-with-placeholder' => [

tests/SQLParserUtilsTest.php

@@ -474,42 +474,26 @@ public static function dataExpandListParameters(): iterable
                 [1, 2, 'bar'],
                 [ParameterType::INTEGER, ParameterType::INTEGER, ParameterType::STRING],
             ],
-            'Params/types with colons' => [
+            'Named parameters and partially implicit types' => [
                 'SELECT * FROM Foo WHERE foo = :foo OR bar = :bar',
-                [':foo' => 'foo', ':bar' => 'bar'],
-                [':foo' => ParameterType::INTEGER],
+                ['foo' => 'foo', 'bar' => 'bar'],
+                ['foo' => ParameterType::INTEGER],
                 'SELECT * FROM Foo WHERE foo = ? OR bar = ?',
                 ['foo', 'bar'],
                 [ParameterType::INTEGER, ParameterType::STRING],
             ],
-            [
+            'Named parameters and explicit types' => [
                 'SELECT * FROM Foo WHERE foo = :foo OR bar = :bar',
-                [':foo' => 'foo', ':bar' => 'bar'],
-                [':foo' => ParameterType::INTEGER, 'bar' => ParameterType::INTEGER],
+                ['foo' => 'foo', 'bar' => 'bar'],
+                ['foo' => ParameterType::INTEGER, 'bar' => ParameterType::INTEGER],
                 'SELECT * FROM Foo WHERE foo = ? OR bar = ?',
                 ['foo', 'bar'],
                 [ParameterType::INTEGER, ParameterType::INTEGER],
             ],
-            [
-                'SELECT * FROM Foo WHERE foo IN (:foo) OR bar = :bar',
-                [':foo' => [1, 2], ':bar' => 'bar'],
-                ['foo' => Connection::PARAM_INT_ARRAY],
-                'SELECT * FROM Foo WHERE foo IN (?, ?) OR bar = ?',
-                [1, 2, 'bar'],
-                [ParameterType::INTEGER, ParameterType::INTEGER, ParameterType::STRING],
-            ],
-            [
-                'SELECT * FROM Foo WHERE foo IN (:foo) OR bar = :bar',
-                ['foo' => [1, 2], 'bar' => 'bar'],
-                [':foo' => Connection::PARAM_INT_ARRAY],
-                'SELECT * FROM Foo WHERE foo IN (?, ?) OR bar = ?',
-                [1, 2, 'bar'],
-                [ParameterType::INTEGER, ParameterType::INTEGER, ParameterType::STRING],
-            ],
             'Null valued parameters (DBAL-522)' => [
                 'INSERT INTO Foo (foo, bar) values (:foo, :bar)',
                 ['foo' => 1, 'bar' => null],
-                [':foo' => ParameterType::INTEGER, ':bar' => ParameterType::NULL],
+                ['foo' => ParameterType::INTEGER, 'bar' => ParameterType::NULL],
                 'INSERT INTO Foo (foo, bar) values (?, ?)',
                 [1, null],
                 [ParameterType::INTEGER, ParameterType::NULL],
@@ -524,8 +508,8 @@ public static function dataExpandListParameters(): iterable
             ],
             'Escaped single quotes SQL- and C-Style (DBAL-1205)' => [
                 "SELECT * FROM Foo WHERE foo = :foo||''':not_a_param''\\'' OR bar = ''':not_a_param''\\'':bar",
-                [':foo' => 1, ':bar' => 2],
-                [':foo' => ParameterType::INTEGER, 'bar' => ParameterType::INTEGER],
+                ['foo' => 1, 'bar' => 2],
+                ['foo' => ParameterType::INTEGER, 'bar' => ParameterType::INTEGER],
                 'SELECT * FROM Foo WHERE foo = ?||\'\'\':not_a_param\'\'\\\'\' OR bar = \'\'\':not_a_param\'\'\\\'\'?',
                 [1, 2],
                 [ParameterType::INTEGER, ParameterType::INTEGER],