Hello I am doing a small project in Postgress where i have to achieve the following:
Suppose i know the index name(lets say index1) and the relation(table1) on which partial index to has to be build. I was looking through the code and found that IndexStmt-->whereClause is the one that i need to populate manually . As of know i am successful in creating index by giving a call to Method DefineIndex of indexcmds.c that creates a index on the relation, but this index is not an partial index. I found that DefineIndex takes *Expr *predicate* as an parameter which specifies that partial index has to be built. This predicate is nothing but *IndexStmt-->whereClause * So is there a way to populate manually IndexStmt-->whereClause An example of partial index that i need is if my My table1 schema is (a int ,b int ,c int) index on c where a is null, b is null and c is not null Thanks in advance Regards -- View this message in context: http://postgresql.1045698.n5.nabble.com/Creating-partial-index-on-a-relation-tp5776230.html Sent from the PostgreSQL - hackers mailing list archive at Nabble.com. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
