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Select Query Modification:Details needed - Mailing list pgsql-general

From RAJDEEP SARDAR
Subject Select Query Modification:Details needed
Date
Msg-id 1352136847.88198.YahooMailNeo@web193603.mail.sg3.yahoo.com
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In response to Select Query Implementation:Details needed  (RAJDEEP SARDAR <rajdeep.sardar@yahoo.co.in>)
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Dear All,


I am having a database course project where I need to make some modification in postgresql.

For this I need to modify  a select query and add some condition to it.

I need to find out the formclause and whereclause of the select query after it is parsed.To do that,I have found a structure ListCell,which contains a void * ptr_val.It seems that probably this ptr_val is holding some structure within which the strings are stored.But I am not being able to access that as I dont know what kind of structure is pointed by ptr_val.

I am trying to modify analyze.c ,method:transformSelectStmt(ParseState *pstate, SelectStmt *stmt)

Can anyone share any idea how to access the formclause and whereclause of the select statement after the query being parsed?


thanks,

Rajdeep





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