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Fix hard-coded relkind constants in psql/describe.c.

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Although it's reasonable to expect that most of these constants will
never change, that does not make it good programming style to hard-code
the value rather than using the RELKIND_FOO macros.

Discussion: https://postgr.es/m/11145.1488931324@sss.pgh.pa.us
This commit is contained in:
Tom Lane 2017-03-09 20:42:42 -05:00
parent 90e91e242f
commit 395bfaae8e
1 changed files with 120 additions and 83 deletions
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201
src/bin/psql/describe.c
View File

@ -14,6 +14,7 @@
#include <ctype.h>
#include "catalog/pg_class.h"
#include "catalog/pg_default_acl.h"
#include "fe_utils/string_utils.h"
@ -653,7 +654,8 @@ describeTypes(const char *pattern, bool verbose, bool showSystem)
* composite types
*/
appendPQExpBufferStr(&buf, "WHERE (t.typrelid = 0 ");
appendPQExpBufferStr(&buf, "OR (SELECT c.relkind = 'c' FROM pg_catalog.pg_class c "
appendPQExpBufferStr(&buf, "OR (SELECT c.relkind = " CppAsString2(RELKIND_COMPOSITE_TYPE)
" FROM pg_catalog.pg_class c "
"WHERE c.oid = t.typrelid))\n");
/*
@ -860,12 +862,12 @@ permissionsList(const char *pattern)
"SELECT n.nspname as \"%s\",\n"
" c.relname as \"%s\",\n"
" CASE c.relkind"
" WHEN 'r' THEN '%s'"
" WHEN 'v' THEN '%s'"
" WHEN 'm' THEN '%s'"
" WHEN 'S' THEN '%s'"
" WHEN 'f' THEN '%s'"
" WHEN 'P' THEN '%s'"
" WHEN " CppAsString2(RELKIND_RELATION) " THEN '%s'"
" WHEN " CppAsString2(RELKIND_VIEW) " THEN '%s'"
" WHEN " CppAsString2(RELKIND_MATVIEW) " THEN '%s'"
" WHEN " CppAsString2(RELKIND_SEQUENCE) " THEN '%s'"
" WHEN " CppAsString2(RELKIND_FOREIGN_TABLE) " THEN '%s'"
" WHEN " CppAsString2(RELKIND_PARTITIONED_TABLE) " THEN '%s'"
" END as \"%s\",\n"
" ",
gettext_noop("Schema"),
@ -956,7 +958,13 @@ permissionsList(const char *pattern)
appendPQExpBufferStr(&buf, "\nFROM pg_catalog.pg_class c\n"
" LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace\n"
"WHERE c.relkind IN ('r', 'v', 'm', 'S', 'f', 'P')\n");
"WHERE c.relkind IN ("
CppAsString2(RELKIND_RELATION) ","
CppAsString2(RELKIND_VIEW) ","
CppAsString2(RELKIND_MATVIEW) ","
CppAsString2(RELKIND_SEQUENCE) ","
CppAsString2(RELKIND_FOREIGN_TABLE) ","
CppAsString2(RELKIND_PARTITIONED_TABLE) ")\n");
/*
* Unless a schema pattern is specified, we suppress system and temp
@ -1545,7 +1553,7 @@ describeOneTableDetails(const char *schemaname,
* If it's a sequence, fetch its values and store into an array that will
* be used later.
*/
if (tableinfo.relkind == 'S')
if (tableinfo.relkind == RELKIND_SEQUENCE)
{
printfPQExpBuffer(&buf, "SELECT * FROM %s", fmtId(schemaname));
/* must be separate because fmtId isn't reentrant */
@ -1582,11 +1590,11 @@ describeOneTableDetails(const char *schemaname,
" WHERE c.oid = a.attcollation AND t.oid = a.atttypid AND a.attcollation <> t.typcollation) AS attcollation");
else
appendPQExpBufferStr(&buf, "\n NULL AS attcollation");
if (tableinfo.relkind == 'i')
if (tableinfo.relkind == RELKIND_INDEX)
appendPQExpBufferStr(&buf, ",\n pg_catalog.pg_get_indexdef(a.attrelid, a.attnum, TRUE) AS indexdef");
else
appendPQExpBufferStr(&buf, ",\n NULL AS indexdef");
if (tableinfo.relkind == 'f' && pset.sversion >= 90200)
if (tableinfo.relkind == RELKIND_FOREIGN_TABLE && pset.sversion >= 90200)
appendPQExpBufferStr(&buf, ",\n CASE WHEN attfdwoptions IS NULL THEN '' ELSE "
" '(' || array_to_string(ARRAY(SELECT quote_ident(option_name) || ' ' || quote_literal(option_value) FROM "
" pg_options_to_table(attfdwoptions)), ', ') || ')' END AS attfdwoptions");
@ -1601,9 +1609,12 @@ describeOneTableDetails(const char *schemaname,
* In 9.0+, we have column comments for: relations, views, composite
* types, and foreign tables (c.f. CommentObject() in comment.c).
*/
if (tableinfo.relkind == 'r' || tableinfo.relkind == 'v' ||
tableinfo.relkind == 'm' || tableinfo.relkind == 'f' ||
tableinfo.relkind == 'c' || tableinfo.relkind == 'P')
if (tableinfo.relkind == RELKIND_RELATION ||
tableinfo.relkind == RELKIND_VIEW ||
tableinfo.relkind == RELKIND_MATVIEW ||
tableinfo.relkind == RELKIND_FOREIGN_TABLE ||
tableinfo.relkind == RELKIND_COMPOSITE_TYPE ||
tableinfo.relkind == RELKIND_PARTITIONED_TABLE)
appendPQExpBufferStr(&buf, ", pg_catalog.col_description(a.attrelid, a.attnum)");
}
@ -1619,7 +1630,7 @@ describeOneTableDetails(const char *schemaname,
/* Make title */
switch (tableinfo.relkind)
{
case 'r':
case RELKIND_RELATION:
if (tableinfo.relpersistence == 'u')
printfPQExpBuffer(&title, _("Unlogged table \"%s.%s\""),
schemaname, relationname);
@ -1627,11 +1638,11 @@ describeOneTableDetails(const char *schemaname,
printfPQExpBuffer(&title, _("Table \"%s.%s\""),
schemaname, relationname);
break;
case 'v':
case RELKIND_VIEW:
printfPQExpBuffer(&title, _("View \"%s.%s\""),
schemaname, relationname);
break;
case 'm':
case RELKIND_MATVIEW:
if (tableinfo.relpersistence == 'u')
printfPQExpBuffer(&title, _("Unlogged materialized view \"%s.%s\""),
schemaname, relationname);
@ -1639,11 +1650,11 @@ describeOneTableDetails(const char *schemaname,
printfPQExpBuffer(&title, _("Materialized view \"%s.%s\""),
schemaname, relationname);
break;
case 'S':
case RELKIND_SEQUENCE:
printfPQExpBuffer(&title, _("Sequence \"%s.%s\""),
schemaname, relationname);
break;
case 'i':
case RELKIND_INDEX:
if (tableinfo.relpersistence == 'u')
printfPQExpBuffer(&title, _("Unlogged index \"%s.%s\""),
schemaname, relationname);
@ -1656,19 +1667,19 @@ describeOneTableDetails(const char *schemaname,
printfPQExpBuffer(&title, _("Special relation \"%s.%s\""),
schemaname, relationname);
break;
case 't':
case RELKIND_TOASTVALUE:
printfPQExpBuffer(&title, _("TOAST table \"%s.%s\""),
schemaname, relationname);
break;
case 'c':
case RELKIND_COMPOSITE_TYPE:
printfPQExpBuffer(&title, _("Composite type \"%s.%s\""),
schemaname, relationname);
break;
case 'f':
case RELKIND_FOREIGN_TABLE:
printfPQExpBuffer(&title, _("Foreign table \"%s.%s\""),
schemaname, relationname);
break;
case 'P':
case RELKIND_PARTITIONED_TABLE:
if (tableinfo.relpersistence == 'u')
printfPQExpBuffer(&title, _("Unlogged table \"%s.%s\""),
schemaname, relationname);
@ -1688,9 +1699,12 @@ describeOneTableDetails(const char *schemaname,
headers[1] = gettext_noop("Type");
cols = 2;
if (tableinfo.relkind == 'r' || tableinfo.relkind == 'v' ||
tableinfo.relkind == 'm' || tableinfo.relkind == 'f' ||
tableinfo.relkind == 'c' || tableinfo.relkind == 'P')
if (tableinfo.relkind == RELKIND_RELATION ||
tableinfo.relkind == RELKIND_VIEW ||
tableinfo.relkind == RELKIND_MATVIEW ||
tableinfo.relkind == RELKIND_FOREIGN_TABLE ||
tableinfo.relkind == RELKIND_COMPOSITE_TYPE ||
tableinfo.relkind == RELKIND_PARTITIONED_TABLE)
{
headers[cols++] = gettext_noop("Collation");
headers[cols++] = gettext_noop("Nullable");
@ -1698,25 +1712,30 @@ describeOneTableDetails(const char *schemaname,
show_column_details = true;
}
if (tableinfo.relkind == 'S')
if (tableinfo.relkind == RELKIND_SEQUENCE)
headers[cols++] = gettext_noop("Value");
if (tableinfo.relkind == 'i')
if (tableinfo.relkind == RELKIND_INDEX)
headers[cols++] = gettext_noop("Definition");
if (tableinfo.relkind == 'f' && pset.sversion >= 90200)
if (tableinfo.relkind == RELKIND_FOREIGN_TABLE && pset.sversion >= 90200)
headers[cols++] = gettext_noop("FDW Options");
if (verbose)
{
headers[cols++] = gettext_noop("Storage");
if (tableinfo.relkind == 'r' || tableinfo.relkind == 'm' ||
tableinfo.relkind == 'f' || tableinfo.relkind == 'P')
if (tableinfo.relkind == RELKIND_RELATION ||
tableinfo.relkind == RELKIND_MATVIEW ||
tableinfo.relkind == RELKIND_FOREIGN_TABLE ||
tableinfo.relkind == RELKIND_PARTITIONED_TABLE)
headers[cols++] = gettext_noop("Stats target");
/* Column comments, if the relkind supports this feature. */
if (tableinfo.relkind == 'r' || tableinfo.relkind == 'v' ||
tableinfo.relkind == 'm' || tableinfo.relkind == 'c' ||
tableinfo.relkind == 'f' || tableinfo.relkind == 'P')
if (tableinfo.relkind == RELKIND_RELATION ||
tableinfo.relkind == RELKIND_VIEW ||
tableinfo.relkind == RELKIND_MATVIEW ||
tableinfo.relkind == RELKIND_COMPOSITE_TYPE ||
tableinfo.relkind == RELKIND_FOREIGN_TABLE ||
tableinfo.relkind == RELKIND_PARTITIONED_TABLE)
headers[cols++] = gettext_noop("Description");
}
@ -1726,8 +1745,9 @@ describeOneTableDetails(const char *schemaname,
for (i = 0; i < cols; i++)
printTableAddHeader(&cont, headers[i], true, 'l');
/* Check if table is a view or materialized view */
if ((tableinfo.relkind == 'v' || tableinfo.relkind == 'm') && verbose)
/* Get view_def if table is a view or materialized view */
if ((tableinfo.relkind == RELKIND_VIEW ||
tableinfo.relkind == RELKIND_MATVIEW) && verbose)
{
PGresult *result;
@ -1765,15 +1785,15 @@ describeOneTableDetails(const char *schemaname,
}
/* Value: for sequences only */
if (tableinfo.relkind == 'S')
if (tableinfo.relkind == RELKIND_SEQUENCE)
printTableAddCell(&cont, seq_values[i], false, false);
/* Expression for index column */
if (tableinfo.relkind == 'i')
if (tableinfo.relkind == RELKIND_INDEX)
printTableAddCell(&cont, PQgetvalue(res, i, 6), false, false);
/* FDW options for foreign table column, only for 9.2 or later */
if (tableinfo.relkind == 'f' && pset.sversion >= 90200)
if (tableinfo.relkind == RELKIND_FOREIGN_TABLE && pset.sversion >= 90200)
printTableAddCell(&cont, PQgetvalue(res, i, 7), false, false);
/* Storage and Description */
@ -1791,17 +1811,22 @@ describeOneTableDetails(const char *schemaname,
false, false);
/* Statistics target, if the relkind supports this feature */
if (tableinfo.relkind == 'r' || tableinfo.relkind == 'm' ||
tableinfo.relkind == 'f' || tableinfo.relkind == 'P')
if (tableinfo.relkind == RELKIND_RELATION ||
tableinfo.relkind == RELKIND_MATVIEW ||
tableinfo.relkind == RELKIND_FOREIGN_TABLE ||
tableinfo.relkind == RELKIND_PARTITIONED_TABLE)
{
printTableAddCell(&cont, PQgetvalue(res, i, firstvcol + 1),
false, false);
}
/* Column comments, if the relkind supports this feature. */
if (tableinfo.relkind == 'r' || tableinfo.relkind == 'v' ||
tableinfo.relkind == 'm' || tableinfo.relkind == 'c' ||
tableinfo.relkind == 'f' || tableinfo.relkind == 'P')
if (tableinfo.relkind == RELKIND_RELATION ||
tableinfo.relkind == RELKIND_VIEW ||
tableinfo.relkind == RELKIND_MATVIEW ||
tableinfo.relkind == RELKIND_COMPOSITE_TYPE ||
tableinfo.relkind == RELKIND_FOREIGN_TABLE ||
tableinfo.relkind == RELKIND_PARTITIONED_TABLE)
printTableAddCell(&cont, PQgetvalue(res, i, firstvcol + 2),
false, false);
}
@ -1836,7 +1861,7 @@ describeOneTableDetails(const char *schemaname,
}
}
if (tableinfo.relkind == 'P')
if (tableinfo.relkind == RELKIND_PARTITIONED_TABLE)
{
/* Get the partition key information */
PGresult *result;
@ -1855,7 +1880,7 @@ describeOneTableDetails(const char *schemaname,
PQclear(result);
}
if (tableinfo.relkind == 'i')
if (tableinfo.relkind == RELKIND_INDEX)
{
/* Footer information about an index */
PGresult *result;
@ -1954,7 +1979,7 @@ describeOneTableDetails(const char *schemaname,
PQclear(result);
}
else if (tableinfo.relkind == 'S')
else if (tableinfo.relkind == RELKIND_SEQUENCE)
{
/* Footer information about a sequence */
PGresult *result = NULL;
@ -1992,8 +2017,10 @@ describeOneTableDetails(const char *schemaname,
*/
PQclear(result);
}
else if (tableinfo.relkind == 'r' || tableinfo.relkind == 'm' ||
tableinfo.relkind == 'f' || tableinfo.relkind == 'P')
else if (tableinfo.relkind == RELKIND_RELATION ||
tableinfo.relkind == RELKIND_MATVIEW ||
tableinfo.relkind == RELKIND_FOREIGN_TABLE ||
tableinfo.relkind == RELKIND_PARTITIONED_TABLE)
{
/* Footer information about a table */
PGresult *result = NULL;
@ -2098,7 +2125,7 @@ describeOneTableDetails(const char *schemaname,
/* Print tablespace of the index on the same line */
if (pset.sversion >= 80000)
add_tablespace_footer(&cont, 'i',
add_tablespace_footer(&cont, RELKIND_INDEX,
atooid(PQgetvalue(result, i, 11)),
false);
}
@ -2294,7 +2321,7 @@ describeOneTableDetails(const char *schemaname,
}
/* print rules */
if (tableinfo.hasrules && tableinfo.relkind != 'm')
if (tableinfo.hasrules && tableinfo.relkind != RELKIND_MATVIEW)
{
if (pset.sversion >= 80300)
{
@ -2601,14 +2628,16 @@ describeOneTableDetails(const char *schemaname,
/*
* Finish printing the footer information about a table.
*/
if (tableinfo.relkind == 'r' || tableinfo.relkind == 'm' ||
tableinfo.relkind == 'f' || tableinfo.relkind == 'P')
if (tableinfo.relkind == RELKIND_RELATION ||
tableinfo.relkind == RELKIND_MATVIEW ||
tableinfo.relkind == RELKIND_FOREIGN_TABLE ||
tableinfo.relkind == RELKIND_PARTITIONED_TABLE)
{
PGresult *result;
int tuples;
/* print foreign server name */
if (tableinfo.relkind == 'f')
if (tableinfo.relkind == RELKIND_FOREIGN_TABLE)
{
char *ftoptions;
@ -2652,7 +2681,8 @@ describeOneTableDetails(const char *schemaname,
"SELECT c.oid::pg_catalog.regclass"
" FROM pg_catalog.pg_class c, pg_catalog.pg_inherits i"
" WHERE c.oid=i.inhparent AND i.inhrelid = '%s'"
" AND c.relkind != 'P' ORDER BY inhseqno;", oid);
" AND c.relkind != " CppAsString2(RELKIND_PARTITIONED_TABLE)
" ORDER BY inhseqno;", oid);
result = PSQLexec(buf.data);
if (!result)
@ -2712,7 +2742,7 @@ describeOneTableDetails(const char *schemaname,
/* print the number of child tables, if any */
if (tuples > 0)
{
if (tableinfo.relkind != 'P')
if (tableinfo.relkind != RELKIND_PARTITIONED_TABLE)
printfPQExpBuffer(&buf, _("Number of child tables: %d (Use \\d+ to list them.)"), tuples);
else
printfPQExpBuffer(&buf, _("Number of partitions: %d (Use \\d+ to list them.)"), tuples);
@ -2722,12 +2752,13 @@ describeOneTableDetails(const char *schemaname,
else
{
/* display the list of child tables */
const char *ct = tableinfo.relkind != 'P' ? _("Child tables") : _("Partitions");
const char *ct = (tableinfo.relkind != RELKIND_PARTITIONED_TABLE) ?
_("Child tables") : _("Partitions");
int ctw = pg_wcswidth(ct, strlen(ct), pset.encoding);
for (i = 0; i < tuples; i++)
{
if (tableinfo.relkind != 'P')
if (tableinfo.relkind != RELKIND_PARTITIONED_TABLE)
{
if (i == 0)
printfPQExpBuffer(&buf, "%s: %s",
@ -2760,7 +2791,9 @@ describeOneTableDetails(const char *schemaname,
printTableAddFooter(&cont, buf.data);
}
if (verbose && (tableinfo.relkind == 'r' || tableinfo.relkind == 'm') &&
if (verbose &&
(tableinfo.relkind == RELKIND_RELATION ||
tableinfo.relkind == RELKIND_MATVIEW) &&
/*
* No need to display default values; we already display a REPLICA
@ -2782,7 +2815,7 @@ describeOneTableDetails(const char *schemaname,
}
/* OIDs, if verbose and not a materialized view */
if (verbose && tableinfo.relkind != 'm' && tableinfo.hasoids)
if (verbose && tableinfo.relkind != RELKIND_MATVIEW && tableinfo.hasoids)
printTableAddFooter(&cont, _("Has OIDs: yes"));
/* Tablespace info */
@ -2839,7 +2872,10 @@ add_tablespace_footer(printTableContent *const cont, char relkind,
Oid tablespace, const bool newline)
{
/* relkinds for which we support tablespaces */
if (relkind == 'r' || relkind == 'm' || relkind == 'i' || relkind == 'P')
if (relkind == RELKIND_RELATION ||
relkind == RELKIND_MATVIEW ||
relkind == RELKIND_INDEX ||
relkind == RELKIND_PARTITIONED_TABLE)
{
/*
* We ignore the database default tablespace so that users not using
@ -3159,21 +3195,21 @@ listTables(const char *tabtypes, const char *pattern, bool verbose, bool showSys
initPQExpBuffer(&buf);
/*
* Note: as of Pg 8.2, we no longer use relkind 's', but we keep it here
* for backwards compatibility.
* Note: as of Pg 8.2, we no longer use relkind 's' (special), but we keep
* it here for backwards compatibility.
*/
printfPQExpBuffer(&buf,
"SELECT n.nspname as \"%s\",\n"
" c.relname as \"%s\",\n"
" CASE c.relkind"
" WHEN 'r' THEN '%s'"
" WHEN 'v' THEN '%s'"
" WHEN 'm' THEN '%s'"
" WHEN 'i' THEN '%s'"
" WHEN 'S' THEN '%s'"
" WHEN " CppAsString2(RELKIND_RELATION) " THEN '%s'"
" WHEN " CppAsString2(RELKIND_VIEW) " THEN '%s'"
" WHEN " CppAsString2(RELKIND_MATVIEW) " THEN '%s'"
" WHEN " CppAsString2(RELKIND_INDEX) " THEN '%s'"
" WHEN " CppAsString2(RELKIND_SEQUENCE) " THEN '%s'"
" WHEN 's' THEN '%s'"
" WHEN 'f' THEN '%s'"
" WHEN 'P' THEN '%s'"
" WHEN " CppAsString2(RELKIND_FOREIGN_TABLE) " THEN '%s'"
" WHEN " CppAsString2(RELKIND_PARTITIONED_TABLE) " THEN '%s'"
" END as \"%s\",\n"
" pg_catalog.pg_get_userbyid(c.relowner) as \"%s\"",
gettext_noop("Schema"),
@ -3224,20 +3260,20 @@ listTables(const char *tabtypes, const char *pattern, bool verbose, bool showSys
appendPQExpBufferStr(&buf, "\nWHERE c.relkind IN (");
if (showTables)
appendPQExpBufferStr(&buf, "'r', 'P',");
appendPQExpBufferStr(&buf, CppAsString2(RELKIND_RELATION) ","
CppAsString2(RELKIND_PARTITIONED_TABLE) ",");
if (showViews)
appendPQExpBufferStr(&buf, "'v',");
appendPQExpBufferStr(&buf, CppAsString2(RELKIND_VIEW) ",");
if (showMatViews)
appendPQExpBufferStr(&buf, "'m',");
appendPQExpBufferStr(&buf, CppAsString2(RELKIND_MATVIEW) ",");
if (showIndexes)
appendPQExpBufferStr(&buf, "'i',");
appendPQExpBufferStr(&buf, CppAsString2(RELKIND_INDEX) ",");
if (showSeq)
appendPQExpBufferStr(&buf, "'S',");
appendPQExpBufferStr(&buf, CppAsString2(RELKIND_SEQUENCE) ",");
if (showSystem || pattern)
appendPQExpBufferStr(&buf, "'s',"); /* was RELKIND_SPECIAL in <=
* 8.1 */
appendPQExpBufferStr(&buf, "'s',"); /* was RELKIND_SPECIAL */
if (showForeign)
appendPQExpBufferStr(&buf, "'f',");
appendPQExpBufferStr(&buf, CppAsString2(RELKIND_FOREIGN_TABLE) ",");
appendPQExpBufferStr(&buf, "''"); /* dummy */
appendPQExpBufferStr(&buf, ")\n");
@ -3248,9 +3284,10 @@ listTables(const char *tabtypes, const char *pattern, bool verbose, bool showSys
/*
* TOAST objects are suppressed unconditionally. Since we don't provide
* any way to select relkind 't' above, we would never show toast tables
* in any case; it seems a bit confusing to allow their indexes to be
* shown. Use plain \d if you really need to look at a TOAST table/index.
* any way to select RELKIND_TOASTVALUE above, we would never show toast
* tables in any case; it seems a bit confusing to allow their indexes to
* be shown. Use plain \d if you really need to look at a TOAST
* table/index.
*/
appendPQExpBufferStr(&buf, " AND n.nspname !~ '^pg_toast'\n");
@ -5015,7 +5052,7 @@ describePublications(const char *pattern)
"FROM pg_catalog.pg_class c,\n"
" pg_catalog.pg_namespace n\n"
"WHERE c.relnamespace = n.oid\n"
" AND c.relkind = 'r'\n"
" AND c.relkind = " CppAsString2(RELKIND_RELATION) "\n"
" AND n.nspname <> 'pg_catalog'\n"
" AND n.nspname <> 'information_schema'\n"
"ORDER BY 1,2");