From 9a2ea618323a4cf8ca7eb6a828b08c6e39b95cdd Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Wed, 3 Jul 2019 11:46:34 -0400 Subject: [PATCH] Show table persistence in psql's \dt+ and related commands. In verbose mode, listTables() now emits a "Persistence" column showing whether the table/index/view/etc is permanent, temporary, or unlogged. David Fetter, reviewed by Fabien Coelho and Rafia Sabih Discussion: https://postgr.es/m/20190423005642.GZ28936@fetter.org --- src/bin/psql/describe.c | 30 ++++++++++++++++++++++++++++-- 1 file changed, 28 insertions(+), 2 deletions(-) diff --git a/src/bin/psql/describe.c b/src/bin/psql/describe.c index 1c770b4347..0e0af5f942 100644 --- a/src/bin/psql/describe.c +++ b/src/bin/psql/describe.c @@ -3632,7 +3632,8 @@ listTables(const char *tabtypes, const char *pattern, bool verbose, bool showSys PQExpBufferData buf; PGresult *res; printQueryOpt myopt = pset.popt; - static const bool translate_columns[] = {false, false, true, false, false, false, false}; + int cols_so_far; + bool translate_columns[] = {false, false, true, false, false, false, false, false}; /* If tabtypes is empty, we default to \dtvmsE (but see also command.c) */ if (!(showTables || showIndexes || showViews || showMatViews || showSeq || showForeign)) @@ -3672,14 +3673,39 @@ listTables(const char *tabtypes, const char *pattern, bool verbose, bool showSys gettext_noop("partitioned index"), gettext_noop("Type"), gettext_noop("Owner")); + cols_so_far = 4; if (showIndexes) + { appendPQExpBuffer(&buf, - ",\n c2.relname as \"%s\"", + ",\n c2.relname as \"%s\"", gettext_noop("Table")); + cols_so_far++; + } if (verbose) { + /* + * Show whether a relation is permanent, temporary, or unlogged. Like + * describeOneTableDetails(), we consider that persistence emerged in + * v9.1, even though related concepts existed before. + */ + if (pset.sversion >= 90100) + { + appendPQExpBuffer(&buf, + ",\n CASE c.relpersistence WHEN 'p' THEN '%s' WHEN 't' THEN '%s' WHEN 'u' THEN '%s' END as \"%s\"", + gettext_noop("permanent"), + gettext_noop("temporary"), + gettext_noop("unlogged"), + gettext_noop("Persistence")); + translate_columns[cols_so_far] = true; + } + + /* + * We don't bother to count cols_so_far below here, as there's no need + * to; this might change with future additions to the output columns. + */ + /* * As of PostgreSQL 9.0, use pg_table_size() to show a more accurate * size of a table, including FSM, VM and TOAST tables. -- 2.40.0