psql in Postgres 6.3.2. Both of these problems were complained of
recently in pgsql-questions:
1. In the right circumstances, psql.c will fail to compile due to
trying
to include a nonexistent <history.h>. (Thread "Compile-time
error" around 17 Apr 98.) 2. In other circumstances, psql will
compile but does not provide
command history capability, even though the underlying readline
library supports it. (Various threads, most recently "query
repetition in psql" around 29 Apr.)
Tom Lane
1. Rewritten libpq to allow asynchronous clients.
2. Implemented client side of cancel protocol in library,
and patched psql.c to send a cancel request upon SIGINT. The
backend doesn't notice it yet :-(
3. Implemented 'Z' protocol message addition and renaming of
copy in/out start messages. These are implemented conditionally,
ie, the client protocol version is checked; so the code should
still work with 1.0 clients.
4. Revised protocol and libpq sgml documents (don't have an SGML
compiler, though, so there may be some markup glitches here).
What remains to be done:
1. Implement addition of atttypmod field to RowDescriptor messages.
The client-side code is there but ifdef'd out. I have no idea
what to change on the backend side. The field should be sent
only if protocol >= 2.0, of course.
2. Implement backend response to cancel requests received as OOB
messages. (This prolly need not be conditional on protocol
version; just do it if you get SIGURG.)
3. Update libpq.3. (I'm hoping this can be generated mechanically
from libpq.sgml... if not, will do it by hand.) Is there any
other doco to fix?
4. Update non-libpq interfaces as necessary. I patched libpgtcl
so that it would compile, but haven't tested it. Dunno what
needs to be done with the other interfaces.
Have at it!
Tom Lane
probleme number 1 :
- configure can find the library readline , but don't
find the header file . so in this case we don't use lib readline
.
probleme number 2 :
- when you have postgres 6.2.1 and readline installed
with the same prefix( and generally all your software ) . you
can compile the version 6.3 . I use this prefix , when configure
ask me for "Additional directories to search for include files"
.
( because there a conflict in the header when you
compile psql.c ) In this case, you must permut the sequence of
directive -I .
Erwan MAS
This is a patch to fix crashes in psql when executing queries from
an external file. The code also adds error checking to verify that
memory for "query" was allocated. The conditional for the block of
code was changed from "query == NULL" to "query_alloced == false".
The conditional, "query == NULL", was never true. This prevented
the memory being allocated for "query". A few lines later, an attempt
to write to an un-allocated memory area generated a SIGSEGV causing
the frontend to crash.
