ScriptDom does not fill Clustered property even if it was explicitly provided on HASH index

首先，使用 ScriptDOM 解析提供的 CREATE TABLE 语句，并检查主键节点的 Clustered 属性。比较显式 NONCLUSTERED HASH 声明的结果；对于此情况，当该属性为 false 而不是 null 时，此 issue 即完成。

ScriptDom version: 161.8919.0
Compatibility level used for parsing: 150

Parser did not fill Clustered property and because it is a PRIMARY KEY which are CLUSTERED by default unless explicitly defined as NONCLUSTERED, I resolved this case in my code as implicitly clustered. However it is clearly explicitly NONCLUSTERED. I think Clustered property should be false in this case.

CREATE TABLE dbo.foo
(
    bar VARCHAR(512)   NOT NULL
    , far VARCHAR(20)    NULL
    , CONSTRAINT PK PRIMARY KEY NONCLUSTERED HASH (bar) WITH (BUCKET_COUNT = 500000)
    , INDEX IX_2 NONCLUSTERED HASH (far)
          WITH (BUCKET_COUNT = 500000)
)
WITH (MEMORY_OPTIMIZED = ON, DURABILITY = SCHEMA_AND_DATA);
GO

Here are object properties for PK node:

So to check if index is clustered with respect to property nullability one has to do something like that:

bool isClustered;
if (node.Clustered.HasValue)
{
    isClustered = node.Clustered.Value;
}
else if (node.IndexType != null && node.IndexType.IndexTypeKind.HasValue)
{
    isClustered = node.IndexType.IndexTypeKind.Value == IndexTypeKind.Clustered
        || node.IndexType.IndexTypeKind.Value == IndexTypeKind.ClusteredColumnStore;
}
else
{
    isClustered = node.IsPrimaryKey;
}

feels like it could be more straightforward