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Code review for \df rewrite: fix assorted bugs, make type and

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volatility columns localizable.
This commit is contained in:
Tom Lane 2009-05-05 02:29:06 +00:00
parent 0e19884838
commit 9f4e9bfa9b
1 changed files with 59 additions and 32 deletions
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91
src/bin/psql/describe.c
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@ -8,7 +8,7 @@
*
* Copyright (c) 2000-2009, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/bin/psql/describe.c,v 1.211 2009/05/04 17:31:35 heikki Exp $
* $PostgreSQL: pgsql/src/bin/psql/describe.c,v 1.212 2009/05/05 02:29:06 tgl Exp $
*/
#include "postgres_fe.h"
@ -197,14 +197,15 @@ describeTablespaces(const char *pattern, bool verbose)
bool
describeFunctions(const char *functypes, const char *pattern, bool verbose, bool showSystem)
{
bool showAggregate = strchr(functypes, 'a') != NULL;
bool showNormal = strchr(functypes, 'n') != NULL;
bool showTrigger = strchr(functypes, 't') != NULL;
bool showWindow = strchr(functypes, 'w') != NULL;
bool showAggregate = strchr(functypes, 'a') != NULL;
bool showNormal = strchr(functypes, 'n') != NULL;
bool showTrigger = strchr(functypes, 't') != NULL;
bool showWindow = strchr(functypes, 'w') != NULL;
bool have_where;
PQExpBufferData buf;
PGresult *res;
printQueryOpt myopt = pset.popt;
static const bool translate_columns[] = {false, false, false, false, true, true, false, false, false, false};
if (strlen(functypes) != strspn(functypes, "antwS+"))
{
@ -241,7 +242,7 @@ describeFunctions(const char *functypes, const char *pattern, bool verbose, bool
" CASE\n"
" WHEN p.proisagg THEN '%s'\n"
" WHEN p.proiswindow THEN '%s'\n"
" WHEN pg_catalog.pg_get_function_result(p.oid) = 'trigger' THEN '%s'\n"
" WHEN p.prorettype = 'pg_catalog.trigger'::pg_catalog.regtype THEN '%s'\n"
" ELSE '%s'\n"
"END as \"%s\"",
gettext_noop("Result data type"),
@ -287,7 +288,7 @@ describeFunctions(const char *functypes, const char *pattern, bool verbose, bool
" END AS \"%s\",\n"
" CASE\n"
" WHEN p.proisagg THEN '%s'\n"
" WHEN 'trigger' = pg_catalog.format_type(p.prorettype, NULL) THEN '%s'\n"
" WHEN p.prorettype = 'pg_catalog.trigger'::pg_catalog.regtype THEN '%s'\n"
" ELSE '%s'\n"
" END AS \"%s\"",
gettext_noop("Result data type"),
@ -304,7 +305,7 @@ describeFunctions(const char *functypes, const char *pattern, bool verbose, bool
" pg_catalog.oidvectortypes(p.proargtypes) as \"%s\",\n"
" CASE\n"
" WHEN p.proisagg THEN '%s'\n"
" WHEN 'trigger' = pg_catalog.format_type(p.prorettype, NULL) THEN '%s'\n"
" WHEN p.prorettype = 'pg_catalog.trigger'::pg_catalog.regtype THEN '%s'\n"
" ELSE '%s'\n"
" END AS \"%s\"",
gettext_noop("Result data type"),
@ -318,14 +319,17 @@ describeFunctions(const char *functypes, const char *pattern, bool verbose, bool
if (verbose)
appendPQExpBuffer(&buf,
",\n CASE\n"
" WHEN p.provolatile = 'i' THEN 'immutable'\n"
" WHEN p.provolatile = 's' THEN 'stable'\n"
" WHEN p.provolatile = 'v' THEN 'volatile'\n"
" WHEN p.provolatile = 'i' THEN '%s'\n"
" WHEN p.provolatile = 's' THEN '%s'\n"
" WHEN p.provolatile = 'v' THEN '%s'\n"
"END as \"%s\""
",\n pg_catalog.pg_get_userbyid(p.proowner) as \"%s\",\n"
" l.lanname as \"%s\",\n"
" p.prosrc as \"%s\",\n"
" pg_catalog.obj_description(p.oid, 'pg_proc') as \"%s\"",
gettext_noop("immutable"),
gettext_noop("stable"),
gettext_noop("volatile"),
gettext_noop("Volatility"),
gettext_noop("Owner"),
gettext_noop("Language"),
@ -340,33 +344,54 @@ describeFunctions(const char *functypes, const char *pattern, bool verbose, bool
appendPQExpBuffer(&buf,
" LEFT JOIN pg_catalog.pg_language l ON l.oid = p.prolang\n");
processSQLNamePattern(pset.db, &buf, pattern, false, true,
"n.nspname", "p.proname", NULL,
"pg_catalog.pg_function_is_visible(p.oid)");
have_where = false;
/* filter by function type, if requested */
if (showNormal && showAggregate && showTrigger && showWindow)
/* Do nothing */;
else if (showNormal)
{
if (!showWindow && pset.sversion >= 80400)
appendPQExpBuffer(&buf, " AND NOT p.proiswindow\n");
if (!showAggregate)
appendPQExpBuffer(&buf, " AND NOT p.proisagg\n");
{
if (have_where)
appendPQExpBuffer(&buf, " AND ");
else
{
appendPQExpBuffer(&buf, "WHERE ");
have_where = true;
}
appendPQExpBuffer(&buf, "NOT p.proisagg\n");
}
if (!showTrigger)
{
if (pset.sversion >= 80400)
appendPQExpBuffer(&buf,
" AND pg_catalog.pg_get_function_result(p.oid) <> 'trigger'\n");
if (have_where)
appendPQExpBuffer(&buf, " AND ");
else
appendPQExpBuffer(&buf,
" AND pg_catalog.format_type(p.prorettype, NULL) <> 'trigger'\n");
{
appendPQExpBuffer(&buf, "WHERE ");
have_where = true;
}
appendPQExpBuffer(&buf, "p.prorettype <> 'pg_catalog.trigger'::pg_catalog.regtype\n");
}
if (!showWindow && pset.sversion >= 80400)
{
if (have_where)
appendPQExpBuffer(&buf, " AND ");
else
{
appendPQExpBuffer(&buf, "WHERE ");
have_where = true;
}
appendPQExpBuffer(&buf, "NOT p.proiswindow\n");
}
}
else
{
bool needs_or = false;
appendPQExpBuffer(&buf, " AND (\n ");
appendPQExpBuffer(&buf, "WHERE (\n ");
have_where = true;
/* Note: at least one of these must be true ... */
if (showAggregate)
{
appendPQExpBuffer(&buf,"p.proisagg\n");
@ -375,24 +400,25 @@ describeFunctions(const char *functypes, const char *pattern, bool verbose, bool
if (showTrigger)
{
if (needs_or)
appendPQExpBuffer(&buf, " OR ");
if (pset.sversion >= 80400)
appendPQExpBuffer(&buf,
"pg_catalog.pg_get_function_result(p.oid) = 'trigger'\n");
else
appendPQExpBuffer(&buf,
"'trigger' <> pg_catalog.format_type(p.prorettype, NULL)\n");
appendPQExpBuffer(&buf, " OR ");
appendPQExpBuffer(&buf,
"p.prorettype = 'pg_catalog.trigger'::pg_catalog.regtype\n");
needs_or = true;
}
if (showWindow)
{
if (needs_or)
appendPQExpBuffer(&buf, " OR ");
appendPQExpBuffer(&buf, " OR ");
appendPQExpBuffer(&buf, "p.proiswindow\n");
needs_or = true;
}
appendPQExpBuffer(&buf, " )\n");
}
processSQLNamePattern(pset.db, &buf, pattern, have_where, true,
"n.nspname", "p.proname", NULL,
"pg_catalog.pg_function_is_visible(p.oid)");
if (!showSystem && !pattern)
appendPQExpBuffer(&buf, " AND n.nspname <> 'pg_catalog'\n"
" AND n.nspname <> 'information_schema'\n");
@ -407,6 +433,7 @@ describeFunctions(const char *functypes, const char *pattern, bool verbose, bool
myopt.nullPrint = NULL;
myopt.title = _("List of functions");
myopt.translate_header = true;
myopt.translate_columns = translate_columns;
printQuery(res, &myopt, pset.queryFout, pset.logfile);