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Remove unnecessary "DISTINCT" in psql's queries for \dAc and \dAf.

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A moment's examination of these queries is sufficient to see that
they do not produce duplicate rows, unless perhaps there's
catalog corruption.  Using DISTINCT anyway is inefficient and
confusing; moreover it sets a poor example for anyone who
refers to psql -E output to see how to query the catalogs.
This commit is contained in:
Tom Lane 2020-08-03 14:02:35 -04:00
parent 6d78f219e8
commit 72ca61101a
1 changed files with 2 additions and 2 deletions
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4
src/bin/psql/describe.c
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@ -6065,7 +6065,7 @@ listOperatorClasses(const char *access_method_pattern,
initPQExpBuffer(&buf);
printfPQExpBuffer(&buf,
"SELECT DISTINCT"
"SELECT\n"
" am.amname AS \"%s\",\n"
" pg_catalog.format_type(c.opcintype, NULL) AS \"%s\",\n"
" CASE\n"
@ -6160,7 +6160,7 @@ listOperatorFamilies(const char *access_method_pattern,
initPQExpBuffer(&buf);
printfPQExpBuffer(&buf,
"SELECT DISTINCT"
"SELECT\n"
" am.amname AS \"%s\",\n"
" CASE\n"
" WHEN pg_catalog.pg_opfamily_is_visible(f.oid)\n"