Upgrade for pgx/v4,please

Question

Upgrade for pgx/v4,please

OliverZou opened this issue 5 years ago · comments

Oliver Zou commented 5 years ago

since helpers can't get FieldDescriptions fron a row

Vladimir Garvardt · Answer 1 · Thu Jan 23 2020 00:27:54 GMT+0800 (China Standard Time)

Thank you for reporting the issue. I'll be able to handle it next week.

Vladimir Garvardt · Answer 2 · Thu Jan 30 2020 05:20:04 GMT+0800 (China Standard Time)

There are two news - the good one and the second one.

The good one - PoC kinda works (see attached PR).

The second one - I would not use for production - too much unsafe/reflection magic to make ScanStruct work because of the pgx implementation changes.

If you really need this - I can remove ScanStruct implementation in the first v4-compatible version completely so you could use conn.Query()/ScanStructs() even for single-row results as its implementation does not require any ~~black~~ unsafe/reflection magic. In the mean time I'll try to contact pgx maintainers to see if the Row interface can be extended somehow to allow let ScanStruct work again.

Vladimir Garvardt · Answer 3 · Tue Feb 25 2020 18:03:27 GMT+0800 (China Standard Time)

Tagged v4 with ScanStructs support only bsed on the discussion in jackc/pgx#627