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Fix two error-recovery bugs in describeOneTableDetails(), and make the code 

to dump sequence values cope with sequences outside the search path and/or
having names that need quoting.  No back-patch needed because these are new
problems in 8.4.

Kris Jurka  (also a little bit of code beautification by tgl)
This commit is contained in:
Tom Lane 2008-11-03 19:08:56 +00:00
parent 88dd4b0a0d
commit 13fc2e4df8
1 changed files with 22 additions and 15 deletions
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35
src/bin/psql/describe.c
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@ -8,7 +8,7 @@
* *
* Copyright (c) 2000-2008, PostgreSQL Global Development Group * Copyright (c) 2000-2008, PostgreSQL Global Development Group
* *
* $PostgreSQL: pgsql/src/bin/psql/describe.c,v 1.185 2008/09/23 09:20:38 heikki Exp $ * $PostgreSQL: pgsql/src/bin/psql/describe.c,v 1.186 2008/11/03 19:08:56 tgl Exp $
*/ */
#include "postgres_fe.h" #include "postgres_fe.h"
@ -826,6 +826,7 @@ describeOneTableDetails(const char *schemaname,
PGresult *res = NULL; PGresult *res = NULL;
printTableOpt myopt = pset.popt.topt; printTableOpt myopt = pset.popt.topt;
printTableContent cont; printTableContent cont;
bool printTableInitialized = false;
int i; int i;
char *view_def = NULL; char *view_def = NULL;
char *headers[6]; char *headers[6];
@ -887,9 +888,10 @@ describeOneTableDetails(const char *schemaname,
tableinfo.tablespace = (pset.sversion >= 80000) ? tableinfo.tablespace = (pset.sversion >= 80000) ?
atooid(PQgetvalue(res, 0, 6)) : 0; atooid(PQgetvalue(res, 0, 6)) : 0;
PQclear(res); PQclear(res);
res = NULL;
/* /*
* This is used to get the values of a sequence and store it in an * If it's a sequence, fetch its values and store into an
* array that will be used later. * array that will be used later.
*/ */
if (tableinfo.relkind == 'S') if (tableinfo.relkind == 'S')
@ -898,12 +900,14 @@ describeOneTableDetails(const char *schemaname,
#define SEQ_NUM_COLS 10 #define SEQ_NUM_COLS 10
printfPQExpBuffer(&buf, printfPQExpBuffer(&buf,
"SELECT sequence_name, last_value, \n" "SELECT sequence_name, last_value,\n"
" start_value, increment_by, \n" " start_value, increment_by,\n"
" max_value, min_value, cache_value, \n" " max_value, min_value, cache_value,\n"
" log_cnt, is_cycled, is_called \n" " log_cnt, is_cycled, is_called\n"
"FROM \"%s\"", "FROM %s",
relationname); fmtId(schemaname));
/* must be separate because fmtId isn't reentrant */
appendPQExpBuffer(&buf, ".%s", fmtId(relationname));
result = PSQLexec(buf.data, false); result = PSQLexec(buf.data, false);
if (!result) if (!result)
@ -1000,6 +1004,7 @@ describeOneTableDetails(const char *schemaname,
} }
printTableInit(&cont, &myopt, title.data, cols, numrows); printTableInit(&cont, &myopt, title.data, cols, numrows);
printTableInitialized = true;
for (i = 0; i < cols; i++) for (i = 0; i < cols; i++)
printTableAddHeader(&cont, headers[i], true, 'l'); printTableAddHeader(&cont, headers[i], true, 'l');
@ -1031,11 +1036,7 @@ describeOneTableDetails(const char *schemaname,
/* Type */ /* Type */
printTableAddCell(&cont, PQgetvalue(res, i, 1), false); printTableAddCell(&cont, PQgetvalue(res, i, 1), false);
/* A special 'Value' column for sequences */ /* Modifiers: not null and default */
if (tableinfo.relkind == 'S')
printTableAddCell(&cont, seq_values[i], false);
/* Extra: not null and default */
if (show_modifiers) if (show_modifiers)
{ {
resetPQExpBuffer(&tmpbuf); resetPQExpBuffer(&tmpbuf);
@ -1057,10 +1058,15 @@ describeOneTableDetails(const char *schemaname,
printTableAddCell(&cont, modifiers[i], false); printTableAddCell(&cont, modifiers[i], false);
} }
/* Value: for sequences only */
if (tableinfo.relkind == 'S')
printTableAddCell(&cont, seq_values[i], false);
/* Storage and Description */ /* Storage and Description */
if (verbose) if (verbose)
{ {
char *storage = PQgetvalue(res, i, 5); char *storage = PQgetvalue(res, i, 5);
/* these strings are literal in our syntax, so not translated. */ /* these strings are literal in our syntax, so not translated. */
printTableAddCell(&cont, (storage[0]=='p' ? "plain" : printTableAddCell(&cont, (storage[0]=='p' ? "plain" :
(storage[0]=='m' ? "main" : (storage[0]=='m' ? "main" :
@ -1593,7 +1599,8 @@ describeOneTableDetails(const char *schemaname,
error_return: error_return:
/* clean up */ /* clean up */
printTableCleanup(&cont); if (printTableInitialized)
printTableCleanup(&cont);
termPQExpBuffer(&buf); termPQExpBuffer(&buf);
termPQExpBuffer(&title); termPQExpBuffer(&title);
termPQExpBuffer(&tmpbuf); termPQExpBuffer(&tmpbuf);