On Wed, Sep 18, 2013 at 2:21 PM, mohsen soodkhah mohammadi <mohsensoodk...@gmail.com> wrote: > hi > I want that find where did a new tuple data construct in postgresql code > when query is update. > I find that ExecModiryTable is an upper function for do it. but I want to > find exact place that create the data of one row of table.
heap_form_tuple() construct a new tuple from the given values[] and isnull[] arrays and incase of UPDATE operation, it gets called in below call stack ExecModifyTable()->ExecUpdate()->ExecMaterializeSlot()->ExecCopySlotTuple()->heap_form_tuple() Values to construct new tuple are formed during projection in ExecProject() which is called as below call stack in UPDATE operation: ExecModifyTable()->ExecProcNode()->ExecSeqScan()->ExecScan()->ExecProject() With Regards, Amit Kapila. EnterpriseDB: http://www.enterprisedb.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
