subject:"\[HACKERS\] PARALLEL SAFE\/UNSAFE question"

Re: [HACKERS] PARALLEL SAFE/UNSAFE question

2016-07-07 Thread Tom Lane

Satoshi Nagayasu writes: > I was trying writing my own parallel aggregation functions on 9.6beta2. > During that, we found a bit confusing behavior with SAFE/UNSAFE options. > Once a PARALLEL UNSAFE function f1_unsafe() is wrapped by > a PARALLEL SAFE function f1_safe_unsafe(),

[HACKERS] PARALLEL SAFE/UNSAFE question

2016-07-06 Thread Satoshi Nagayasu

Hi all, I was trying writing my own parallel aggregation functions on 9.6beta2. During that, we found a bit confusing behavior with SAFE/UNSAFE options. Once a PARALLEL UNSAFE function f1_unsafe() is wrapped by a PARALLEL SAFE function f1_safe_unsafe(), calling f1_safe_unsafe() produces a