Todd Lipcon has posted comments on this change.

Change subject: KUDU-1890 Allow renaming of primary key column
......................................................................


Patch Set 8:

(4 comments)

http://gerrit.cloudera.org:8080/#/c/6078/8/src/kudu/common/schema-test.cc
File src/kudu/common/schema-test.cc:

Line 120: }
can you add a test that verifies that the nullability has not changed? ie if 
one column is STRING NOT NULL and the other is STRING (nullable), then it 
should not be KeyTypeEqual


http://gerrit.cloudera.org:8080/#/c/6078/8/src/kudu/common/schema.h
File src/kudu/common/schema.h:

PS8, Line 214: bool check_defaults, bool check_na
instead of two bools, how about a bitset of flags? eg COMPARE_DEFAULTS | 
COMPARE_NAMES


PS8, Line 215:     if (check_name && (!EqualsType(other) || this->name_ != 
other.name_))
             :       return false;
             :     else if (!EqualsType(other))
             :  
it seems like these conditions could be simplified a bit, right? you don't need 
the EqualsType part in the top condition anymore. Also, I agree with tidybot


PS8, Line 657:     if (this->num_key_columns_ != other.num_key_columns_) return 
false;
             :     for (size_t i = 0; i < this->num_key_columns_; i++) {
             :       if (!this->cols_[i].Equals(other.cols_[i], false, false)) 
return false;
             :     }
             :     return true;
this is mostly repeated code from the above KeyEquals. if using flags as 
suggested then you can just implement this once and propagate the flags into 
the Equals method


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Gerrit-MessageType: comment
Gerrit-Change-Id: I28a8c52bdb9ac5a3661f9a07c737f7252466d307
Gerrit-PatchSet: 8
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Ram Mettu <[email protected]>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Ram Mettu <[email protected]>
Gerrit-Reviewer: Tidy Bot
Gerrit-Reviewer: Todd Lipcon <[email protected]>
Gerrit-Reviewer: Will Berkeley <[email protected]>
Gerrit-HasComments: Yes

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