PostgreSQL Function Resolution: Handling Ambiguous Candidate Sets
Function candidate resolution in PostgreSQL proceeds through strict filtering and scoring phases. The following configuration demonstrates how the dispatcher handles type coercion, base type mapping, and category matching when resolving overloaded signatures.
Initial Parameter and Signature Configuration
Actual argument OIDs: InputParams = (845 ...
Posted on Mon, 15 Jun 2026 16:53:50 +0000 by d401tq
PostgreSQL Transition Tables and NamedTupleStore Internals
In PostgreSQL architecture, a NamedTupleStore represents an ephemeral named relation rather than a persistent catalog table. Officially referred to within the source code as part of the NamedTuplestoreScan mechanism, these structures exist temporarily to hold transition data during trigger execution.
Implementation Context
This mechanism is pri ...
Posted on Wed, 20 May 2026 05:26:47 +0000 by JREAM