powerbi - Which table gets expanded in DAX CALCULATE/SUM?

Question

I am new to the concept of table expansion and trying to understand which of the table gets expanded?

For example in the following formula the tableX gets expanded:

Example 1 = SUMX(tableX, tableX[col1])

However, for the formula examples given below:

Example 2 = SUMX( VALUES( TABLE1[col1]), CALCULATE( SUMX(TABLE2, EXPR) ) )

Example 3 = CALCULATE(SUMX(TABLE2, EXPR), TABLE3[col1]=10)

Example 4 = CALCULATE(SUMX(TABLE4, EXPR), FILTER(ALL(TABLE5), TABLE5[col1]=10))

Which of the above tables get expanded?

Generally in a DAX formula what is the concept that decides which table gets expanded?

question from:https://stackoverflow.com/questions/65864174/which-table-gets-expanded-in-dax-calculate-sum

Answer 1

Waitting for answers