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Change \du to use the new printTable API, improving the situation of very wide

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tables.

Brendan Jurd, with some help from me.
This commit is contained in:
Alvaro Herrera 2008-05-13 00:23:17 +00:00
parent e6a64bd3b6
commit a61b2464fa
1 changed files with 93 additions and 30 deletions
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123
src/bin/psql/describe.c
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@ -3,7 +3,7 @@
*
* Copyright (c) 2000-2008, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/bin/psql/describe.c,v 1.172 2008/05/13 00:14:11 alvherre Exp $
* $PostgreSQL: pgsql/src/bin/psql/describe.c,v 1.173 2008/05/13 00:23:17 alvherre Exp $
*/
#include "postgres_fe.h"
@ -24,6 +24,7 @@ static bool describeOneTableDetails(const char *schemaname,
bool verbose);
static void add_tablespace_footer(printTableContent *const cont, char relkind,
Oid tablespace, const bool newline);
static void add_role_attribute(PQExpBuffer buf, const char *const str);
static bool listTSParsersVerbose(const char *pattern);
static bool describeOneTSParser(const char *oid, const char *nspname,
const char *prsname);
@ -1560,34 +1561,31 @@ describeRoles(const char *pattern, bool verbose)
{
PQExpBufferData buf;
PGresult *res;
printQueryOpt myopt = pset.popt;
static const bool trans_columns[] = {false, true, true, true, true, false, false};
printTableContent cont;
printTableOpt myopt = pset.popt.topt;
int ncols = 3;
int nrows = 0;
int i;
int conns;
const char align = 'l';
char **attr;
initPQExpBuffer(&buf);
printfPQExpBuffer(&buf,
"SELECT r.rolname AS \"%s\",\n"
" CASE WHEN r.rolsuper THEN '%s' ELSE '%s' END AS \"%s\",\n"
" CASE WHEN r.rolcreaterole THEN '%s' ELSE '%s' END AS \"%s\",\n"
" CASE WHEN r.rolcreatedb THEN '%s' ELSE '%s' END AS \"%s\",\n"
" CASE WHEN r.rolconnlimit < 0 THEN CAST('%s' AS pg_catalog.text)\n"
" ELSE CAST(r.rolconnlimit AS pg_catalog.text)\n"
" END AS \"%s\", \n"
" ARRAY(SELECT b.rolname FROM pg_catalog.pg_auth_members m JOIN pg_catalog.pg_roles b ON (m.roleid = b.oid) WHERE m.member = r.oid) as \"%s\"",
gettext_noop("Role name"),
gettext_noop("yes"), gettext_noop("no"),
gettext_noop("Superuser"),
gettext_noop("yes"), gettext_noop("no"),
gettext_noop("Create role"),
gettext_noop("yes"), gettext_noop("no"),
gettext_noop("Create DB"),
gettext_noop("no limit"),
gettext_noop("Connections"),
gettext_noop("Member of"));
appendPQExpBufferStr(&buf,
"SELECT r.rolname, r.rolsuper, r.rolinherit,\n"
" r.rolcreaterole, r.rolcreatedb, r.rolcanlogin,\n"
" r.rolconnlimit,\n"
" ARRAY(SELECT b.rolname\n"
" FROM pg_catalog.pg_auth_members m\n"
" JOIN pg_catalog.pg_roles b ON (m.roleid = b.oid)\n"
" WHERE m.member = r.oid) as memberof");
if (verbose)
appendPQExpBuffer(&buf, "\n, pg_catalog.shobj_description(r.oid, 'pg_authid') AS \"%s\"",
gettext_noop("Description"));
{
appendPQExpBufferStr(&buf, "\n, pg_catalog.shobj_description(r.oid, 'pg_authid') AS description");
ncols++;
}
appendPQExpBuffer(&buf, "\nFROM pg_catalog.pg_roles r\n");
@ -1597,21 +1595,86 @@ describeRoles(const char *pattern, bool verbose)
appendPQExpBuffer(&buf, "ORDER BY 1;");
res = PSQLexec(buf.data, false);
termPQExpBuffer(&buf);
if (!res)
return false;
myopt.nullPrint = NULL;
myopt.title = _("List of roles");
myopt.trans_headers = true;
myopt.trans_columns = trans_columns;
nrows = PQntuples(res);
attr = pg_malloc_zero((nrows + 1) * sizeof(*attr));
printQuery(res, &myopt, pset.queryFout, pset.logfile);
printTableInit(&cont, &myopt, _("List of roles"), ncols, nrows);
printTableAddHeader(&cont, gettext_noop("Role name"), true, align);
printTableAddHeader(&cont, gettext_noop("Attributes"), true, align);
printTableAddHeader(&cont, gettext_noop("Member of"), true, align);
if (verbose)
printTableAddHeader(&cont, gettext_noop("Description"), true, align);
for (i = 0; i < nrows; i++)
{
printTableAddCell(&cont, PQgetvalue(res, i, 0), false);
resetPQExpBuffer(&buf);
if (strcmp(PQgetvalue(res, i, 1), "t") == 0)
add_role_attribute(&buf, _("Superuser"));
if (strcmp(PQgetvalue(res, i, 2), "t") != 0)
add_role_attribute(&buf, _("No inheritance"));
if (strcmp(PQgetvalue(res, i, 3), "t") == 0)
add_role_attribute(&buf, _("Create role"));
if (strcmp(PQgetvalue(res, i, 4), "t") == 0)
add_role_attribute(&buf, _("Create DB"));
if (strcmp(PQgetvalue(res, i, 5), "t") != 0)
add_role_attribute(&buf, _("Cannot login"));
conns = atoi(PQgetvalue(res, i, 6));
if (conns >= 0)
{
if (buf.len > 0)
appendPQExpBufferStr(&buf, "\n");
if (conns == 0)
appendPQExpBuffer(&buf, _("No connections"));
else if (conns == 1)
appendPQExpBuffer(&buf, _("1 connection"));
else
appendPQExpBuffer(&buf, _("%d connections"), conns);
}
attr[i] = pg_strdup(buf.data);
printTableAddCell(&cont, attr[i], false);
printTableAddCell(&cont, PQgetvalue(res, i, 7), false);
if (verbose)
printTableAddCell(&cont, PQgetvalue(res, i, 8), false);
}
termPQExpBuffer(&buf);
printTable(&cont, pset.queryFout, pset.logfile);
printTableCleanup(&cont);
for (i = 0; i < nrows; i++)
free(attr[i]);
free(attr);
PQclear(res);
return true;
}
void
add_role_attribute(PQExpBuffer buf, const char *const str)
{
if (buf->len > 0)
appendPQExpBufferStr(buf, "\n");
appendPQExpBufferStr(buf, str);
}
/*
* listTables()