Horton

Re: [PATCH] Generic type subscripting

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Arthur Zakirov <a.zakirov@postgrespro.ru>
Cc: Dmitry Dolgov <9erthalion6@gmail.com>, David Steele <david@pgmasters.net>, Peter Eisentraut <peter.eisentraut@2ndquadrant.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2017-09-17T22:52:05Z
Lists: pgsql-hackers 
Arthur Zakirov <a.zakirov@postgrespro.ru> writes:
> CREATE SUBSCRIPTING FOR type_name
>   INITFUNC = subscripting_init_func
>   FETCHFUNC = subscripting_fetch_func
>   ASSIGNFUNC = subscripting_assign_func
> DROP SUBSCRIPTING FOR type_name

Reasonable, but let's make the syntax more like other similar
utility commands such as CREATE AGGREGATE --- basically just
adding some parens, IIRC.

			regards, tom lane

Commits

  1. Throw error when assigning jsonb scalar instead of a composite object

  2. Filling array gaps during jsonb subscripting

  3. Implementation of subscripting for jsonb

  4. Allow ALTER TYPE to update an existing type's typsubscript value.

  5. Allow subscripting of hstore values.

  6. Support subscripting of arbitrary types, not only arrays.

  7. jit: Reference function pointer types via llvmjit_types.c.

  8. Teach contain_leaked_vars that assignment SubscriptingRefs are leaky.

  9. jit: Correct parameter type for generated expression evaluation functions.

  10. Renaming for new subscripting mechanism

  11. Fix assertion failure for SSL connections.

  12. Teach eval_const_expressions() to handle some more cases.