Monday, July 14, 2008

Re: [PATCHES] \d+ should display the storage options for columns

Index: src/bin/psql/describe.c
===================================================================
RCS file: /cvsroot/pgsql/src/bin/psql/describe.c,v
retrieving revision 1.177
diff -c -c -r1.177 describe.c
*** src/bin/psql/describe.c 14 Jul 2008 22:00:04 -0000 1.177
--- src/bin/psql/describe.c 14 Jul 2008 22:50:32 -0000
***************
*** 811,817 ****
printTableContent cont;
int i;
char *view_def = NULL;
! char *headers[4];
char **modifiers = NULL;
char **ptr;
PQExpBufferData title;
--- 811,817 ----
printTableContent cont;
int i;
char *view_def = NULL;
! char *headers[5];
char **modifiers = NULL;
char **ptr;
PQExpBufferData title;
***************
*** 878,884 ****
"\n WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef),"
"\n a.attnotnull, a.attnum");
if (verbose)
! appendPQExpBuffer(&buf, ", pg_catalog.col_description(a.attrelid, a.attnum)");
appendPQExpBuffer(&buf, "\nFROM pg_catalog.pg_attribute a");
if (tableinfo.relkind == 'i')
appendPQExpBuffer(&buf, ", pg_catalog.pg_index i");
--- 878,884 ----
"\n WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef),"
"\n a.attnotnull, a.attnum");
if (verbose)
! appendPQExpBuffer(&buf, ", a.attstorage, pg_catalog.col_description(a.attrelid, a.attnum)");
appendPQExpBuffer(&buf, "\nFROM pg_catalog.pg_attribute a");
if (tableinfo.relkind == 'i')
appendPQExpBuffer(&buf, ", pg_catalog.pg_index i");
***************
*** 933,951 ****

/* Set the number of columns, and their names */
cols = 2;
! headers[0] = "Column";
! headers[1] = "Type";

if (tableinfo.relkind == 'r' || tableinfo.relkind == 'v')
{
show_modifiers = true;
! headers[cols++] = "Modifiers";
modifiers = pg_malloc_zero((numrows + 1) * sizeof(*modifiers));
}

if (verbose)
! headers[cols++] = "Description";
!
printTableInit(&cont, &myopt, title.data, cols, numrows);

for (i = 0; i < cols; i++)
--- 933,954 ----

/* Set the number of columns, and their names */
cols = 2;
! headers[0] = gettext_noop("Column");
! headers[1] = gettext_noop("Type");

if (tableinfo.relkind == 'r' || tableinfo.relkind == 'v')
{
show_modifiers = true;
! headers[cols++] = gettext_noop("Modifiers");
modifiers = pg_malloc_zero((numrows + 1) * sizeof(*modifiers));
}

if (verbose)
! {
! headers[cols++] = gettext_noop("Storage");
! headers[cols++] = gettext_noop("Description");
! }
!
printTableInit(&cont, &myopt, title.data, cols, numrows);

for (i = 0; i < cols; i++)
***************
*** 1000,1008 ****
printTableAddCell(&cont, modifiers[i], false);
}

! /* Description */
if (verbose)
! printTableAddCell(&cont, PQgetvalue(res, i, 5), false);
}

/* Make footers */
--- 1003,1020 ----
printTableAddCell(&cont, modifiers[i], false);
}

! /* Storage and Description */
if (verbose)
! {
! char *storage = PQgetvalue(res, i, 5);
! printTableAddCell(&cont, (storage[0]=='p' ? "plain" :
! (storage[0]=='m' ? "main" :
! (storage[0]=='x' ? "extended" :
! (storage[0]=='e' ? "external" :
! "???")))),
! false);
! printTableAddCell(&cont, PQgetvalue(res, i, 6), false);
! }
}

/* Make footers */
Gregory Stark wrote:
> "Alvaro Herrera" <alvherre@commandprompt.com> writes:
>
> > This seems to be against an older version of psql ... with the
> > printTable API stuff, we reworked this -- in particular the mbvalidate()
> > call that's only on WIN32 is gone (actually it's the lack of it that's
> > gone.)
>
> Sorry. Here's a patch against a current sync of HEAD.
>
> Incidentally how can this new API work? Calling _() on a function parameter
> would work but how would the translation tools know what strings need to be
> translated?

Update patch applied; I also adjusted some translation function calls.
The new output of psql \d+ is:

test=> \d+ test
Table "public.test"
Column | Type | Modifiers | Storage | Description
--------+---------+-----------+---------+-------------
x | integer | | plain |
Has OIDs: no

--
Bruce Momjian <bruce@momjian.us>

http://momjian.us

EnterpriseDB

http://enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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