I'm looking forward to the doc update.
My 0.02€ about prompting:
Given that there is no more barking, then having some prompt indication
that the code is inside a conditional branch becomes more important, so
ISTM that there should be some plan to add it.
Yeah, prompting just got more important. I see a few ways to go about this:
1. Add a new prompt type, either %T for true (heh, pun) or %Y for
branching. It would print a string of chained 't' (branch is true), 'f'
(branch is false), 'z' (branch already had its true section). The depth
traversal would have a limit, say 3 levels deep, and if the tree goes more
than that deep, then '...' would be printed in the stead of any deeper
values. So the prompt would change through a session like:
command prompt is now
\echo bob '' = initial state, no branch going on at all
\if yes 't' = inside a true branch
\if no 'tf' = false inside a true
\endif 't' = back to just the true branch
\if yes 'tt'
\if yes 'ttt'
\if yes '...ttt' = only show the last 3, but let it be known that
there's at least one more'
\else '...ttz' = past the point of a true bit of this branch
I like the "tfz" idea. I'm not sure whether the up to 6 characters is a
2. The printing of #1 could be integrated into %R only in PROMPT_READY
cases, either prepended or appended to the !/=/^, possibly separated by a :
Hmmm. Logically I would say prepend, but the default prompt is with the
dbname, which is mostly letters, so it means adding a separator as well.
3. Like #2, but prepended/appended in all circumstances
I would say yes.
4. Keep %T (or %Y), and reflect the state of pset.active_branch within %R,
a single t/f/z
Yep, but with a separator?
5. Like #4, but also printing the if-stack depth if > 1
Hmmm, not sure...
Based on the your ideas above, I would suggest the following:
calvin=> \if true
calvin?t=> SELECT 1 +
calvin?t=> \if true
calvin?t=> \echo hello
calvin?z=> \echo ignored
Or maybe use "?.t" for the nested if...
Sent via pgsql-hackers mailing list (firstname.lastname@example.org)
To make changes to your subscription: