为逗号分隔列表的每个值创建一行的公式 - GSheets

Formula to create a row for every value of a comma-delimited list - GSheets

我正在尝试编写一个公式,它将采用一组列并将它们配对到单独的行中,并使用逗号分隔列表。在 SQL 中,我会使用左连接来执行此操作,但我不确定如何为此利用 GS​​heets 函数。

我的意思是:

源数据

Col1 Col2 CommaDelim
Col1Val1 Col2Val1 1,2,3
Col1Val2 Col2Val2 1
Col1Val3 Col2Val3 1,2
Col1Val4 Col2Val4 1,2,3,4

期望输出

Col1 Col2 CommaDelim
Col1Val1 Col2Val1 1
Col1Val1 Col2Val1 2
Col1Val1 Col2Val1 3
Col1Val2 Col2Val2 1
Col1Val3 Col2Val3 1
Col1Val3 Col2Val3 2
Col1Val4 Col2Val4 1
Col1Val4 Col2Val4 2
Col1Val4 Col2Val4 3
Col1Val4 Col2Val4 4

尝试:

=INDEX(QUERY(SPLIT(FLATTEN(A1:A&"×"&B1:B&"×"&SPLIT(C1:C, ",")), "×"), 
 "where Col3 is not null"))