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Database Function Restrictions

PostGraphile supports a wide range of PostgreSQL functions; however we do not support:

  • VARIADIC functions
  • overloaded functions (because it's not currently possible to expose them neatly over GraphQL)
  • functions that return record without any more type information (because we don't know what columns that record will contain, and thus cannot convert it to GraphQL)
    • to solve this, change record to be the name of a composite type that you've defined with CREATE TYPE (or similar)