commit 863f7cebd79e76f90bd8f1e3e0c1a1de5fe77d07 3d1306f7b74077cfa197c8fa23baeb96c535af67

Author: Sreeharsha Ramanavarapu <sreeharsha.ramanavarapu@oracle.com>

Date:   Fri Jan 8 06:46:59 2016 +0530

    Bug #22232332: SAVING TEXT FIELD TO TEXT VARIABLE IN A

                   PROCEDURE RESULTS IN GARBAGE BYTES

    Issue:

    -----

    This problem occurs under the following conditions:

    a) Stored procedure has a variable is declared as TEXT/BLOB.

    b) Data is copied into the the variable using the

       SELECT...INTO syntax from a TEXT/BLOB column.

    Data corruption can occur in such cases.

    SOLUTION:

    ---------

    The blob type does not allocate space for the string to be

    stored. Instead it contains a pointer to the source string.

    Since the source is deallocated immediately after the

    select statement, this can cause data corruption.

    As part of the fix for Bug #21143080, when the source was

    part of the table's write-set, blob would allocate the

    neccessary space. But this fix missed the possibility that,

    as in the above case, the target might be a variable.

    The fix will add the copy_blobs check that was removed by

    the earlier fix.