Обсуждение: [GENERAL] How to identify Primary key column during build stage of Custom index?
[GENERAL] How to identify Primary key column during build stage of Custom index?
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Sairam Gaddam
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Hello all,
Basically I am new to postgresql, and I am trying to build a custom Index to postgres using IndexAmRoutine. Further details on what I am working is below.
Basically I am new to postgresql, and I am trying to build a custom Index to postgres using IndexAmRoutine. Further details on what I am working is below.
amapi.h - API for Postgres index access methods.
IndexBuildResult *Indexbuild(Relation heap, Relation index, IndexInfo *indexInfo){ }
The above function will be called during index build stage of custom index.
So If i create a custom index on primary key/or any column on some table, the above function will be called and some details of table and index are shared for further processing...
How do I identify primary key column of that table during build stage through code?
So If i create a custom index on primary key/or any column on some table, the above function will be called and some details of table and index are shared for further processing...
How do I identify primary key column of that table during build stage through code?
Can I get details of primary key through
I tried to access constraints attribute of above, but ConstrCheck in TupleConstr was NULL during build.
I also tried to create index on primary key and check 'indisprimary' of Form_pg_index in Index relationdata object but it was found to be 0 even for my custom index on table primary key!!
So any other way to find a primary key column details during build stage of a custom index???