BIg Data - Module 2 Pig syntax and semantics

[odesh]

Hello,

 In the attached diagram ( step 2 ) should semantics not really be syntax ?

Thanks.

Odesh.

[r_behata]

As per the diagram the Syntax check is done at the step 1 . unless the syntax is not right it wont proceed to the next step where an optimal query plan will be formulated.

Step 1: Syntax Check

Step 2 : Building a logical query plan ( post syntax check)

Step 3: Convert the logical query plan into a physical plan 

Step 4 : Prepare a MapReduce Job from the Phyisical plan

Step 5: Launch the MapReduce Job to the cluster.

[Cynthia_sas]

Hi:

  We think that the slide probably should say "SYNTAX" and the course developers will review that during the next revision cycle. Here is a longer discussion of SYNTAX vs SEMANTIC from one of the course instructors:

Hope this helps,

Cynthia