Internal Parser Error when trying to parse (legit) syntax

從 Parser.Parser.Parse 進入點以及提供的 SQL 陳述式和 ParseOptions 開始。透過 VersionedParserBase.Parse 和 SqlCodeDom.SqlCodeObject.SetParentPointers 追蹤失敗，並使用呼叫堆疊識別 null 物件。當所示圖形查詢能在不出現 SqlParserInternalParserError 的情況下完成剖析，且有回歸測試涵蓋該情況時，即表示完成。

Using the below SMO version:

    <PackageReference Include="Microsoft.SqlServer.SqlManagementObjects" Version="161.46367.54" />

The below code throws SqlParserInternalParserError:

            var sql = @"SELECT * FROM n as n1, e, n as n2 WHERE MATCH (n1-(e)->n2)";

            Microsoft.SqlServer.Management.SqlParser.Parser.ParseOptions resultOptions;
            var res = Microsoft.SqlServer.Management.SqlParser.Parser.Parser.Parse(sql,
                new ParseOptions("GO",
                true,
                Microsoft.SqlServer.Management.SqlParser.Common.DatabaseCompatibilityLevel.Azure,
                Microsoft.SqlServer.Management.SqlParser.Common.TransactSqlVersion.Azure),
                out resultOptions);

Here is the associated call stack:

Unhandled exception. Microsoft.SqlServer.Management.SqlParser.SqlParserInternalParserError: Internal Parser Error
 ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at Microsoft.SqlServer.Management.SqlParser.SqlCodeDom.SqlCodeObject.SetParentPointers()
   at Microsoft.SqlServer.Management.SqlParser.SqlCodeDom.SqlCodeObject.SetParentPointers()
   at Microsoft.SqlServer.Management.SqlParser.SqlCodeDom.SqlCodeObject.SetParentPointers()
   at Microsoft.SqlServer.Management.SqlParser.SqlCodeDom.SqlCodeObject.SetParentPointers()
   at Microsoft.SqlServer.Management.SqlParser.SqlCodeDom.SqlStatement.SetParentPointers()
   at Microsoft.SqlServer.Management.SqlParser.SqlCodeDom.SqlCodeObject.SetParentPointers()
   at Microsoft.SqlServer.Management.SqlParser.SqlCodeDom.SqlCodeObject.SetParentPointers()
   at Microsoft.SqlServer.Management.SqlParser.Parser.Internals.VersionedParserBase.Parse(Boolean isIncremental, String sql, SqlScript prevScript, ParseOptions options, ParseOptions& resultOptions)
   --- End of inner exception stack trace ---
   at Microsoft.SqlServer.Management.SqlParser.Parser.Internals.VersionedParserBase.Parse(Boolean isIncremental, String sql, SqlScript prevScript, ParseOptions options, ParseOptions& resultOptions)
   at Microsoft.SqlServer.Management.SqlParser.Parser.Parser.Parse(Boolean isIncremental, String sql, ParseResult prevResult, ParseOptions options, ParseOptions& resultOptions)
   at Microsoft.SqlServer.Management.SqlParser.Parser.Parser.Parse(String sql, ParseOptions options, ParseOptions& resultOptions)