From: Justin Pryzby <pryzbyj@telsasoft.com>
Date: Wed, 19 Jun 2019 15:41:25 -0500
Subject: [PATCH v3] show childs of partitioned indices

---
 src/bin/psql/describe.c | 52 +++++++++++++++++++++++--------------------------
 1 file changed, 24 insertions(+), 28 deletions(-)

diff --git a/src/bin/psql/describe.c b/src/bin/psql/describe.c
index ff98c4f..3a55dc9 100644
--- a/src/bin/psql/describe.c
+++ b/src/bin/psql/describe.c
@@ -3063,6 +3063,7 @@ describeOneTableDetails(const char *schemaname,
 	if (tableinfo.relkind == RELKIND_RELATION ||
 		tableinfo.relkind == RELKIND_MATVIEW ||
 		tableinfo.relkind == RELKIND_FOREIGN_TABLE ||
+		tableinfo.relkind == RELKIND_PARTITIONED_INDEX ||
 		tableinfo.relkind == RELKIND_PARTITIONED_TABLE)
 	{
 		PGresult   *result;
@@ -3178,7 +3179,8 @@ describeOneTableDetails(const char *schemaname,
 		 * Otherwise, we will not print "Partitions" section for a partitioned
 		 * table without any partitions.
 		 */
-		if (tableinfo.relkind == RELKIND_PARTITIONED_TABLE && tuples == 0)
+		if (tuples == 0 && (tableinfo.relkind == RELKIND_PARTITIONED_TABLE ||
+					tableinfo.relkind == RELKIND_PARTITIONED_INDEX))
 		{
 			printfPQExpBuffer(&buf, _("Number of partitions: %d"), tuples);
 			printTableAddFooter(&cont, buf.data);
@@ -3188,7 +3190,7 @@ describeOneTableDetails(const char *schemaname,
 			/* print the number of child tables, if any */
 			if (tuples > 0)
 			{
-				if (tableinfo.relkind != RELKIND_PARTITIONED_TABLE)
+				if (tableinfo.relkind != RELKIND_PARTITIONED_TABLE && tableinfo.relkind != RELKIND_PARTITIONED_INDEX)
 					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);
@@ -3198,39 +3200,33 @@ describeOneTableDetails(const char *schemaname,
 		else
 		{
 			/* display the list of child tables */
-			const char *ct = (tableinfo.relkind != RELKIND_PARTITIONED_TABLE) ?
+			const char *ct = (tableinfo.relkind != RELKIND_PARTITIONED_TABLE && tableinfo.relkind != RELKIND_PARTITIONED_INDEX) ?
 			_("Child tables") : _("Partitions");
 			int			ctw = pg_wcswidth(ct, strlen(ct), pset.encoding);
 
 			for (i = 0; i < tuples; i++)
 			{
-				if (tableinfo.relkind != RELKIND_PARTITIONED_TABLE)
-				{
-					if (i == 0)
-						printfPQExpBuffer(&buf, "%s: %s",
-										  ct, PQgetvalue(result, i, 0));
-					else
-						printfPQExpBuffer(&buf, "%*s  %s",
-										  ctw, "", PQgetvalue(result, i, 0));
+				char *ptn_expr = tableinfo.relkind == RELKIND_PARTITIONED_TABLE ? PQgetvalue(result, i, 1) : "";
+				char	   *partitioned_note;
+				switch (*PQgetvalue(result, i, 2)) {
+				case RELKIND_PARTITIONED_INDEX:
+				case RELKIND_PARTITIONED_TABLE:
+					partitioned_note = ", PARTITIONED";
+					break;
+				default:
+					partitioned_note = "";
 				}
-				else
-				{
-					char	   *partitioned_note;
 
-					if (*PQgetvalue(result, i, 2) == RELKIND_PARTITIONED_TABLE)
-						partitioned_note = ", PARTITIONED";
-					else
-						partitioned_note = "";
-
-					if (i == 0)
-						printfPQExpBuffer(&buf, "%s: %s %s%s",
-										  ct, PQgetvalue(result, i, 0), PQgetvalue(result, i, 1),
-										  partitioned_note);
-					else
-						printfPQExpBuffer(&buf, "%*s  %s %s%s",
-										  ctw, "", PQgetvalue(result, i, 0), PQgetvalue(result, i, 1),
-										  partitioned_note);
-				}
+				if (i == 0)
+					printfPQExpBuffer(&buf, "%s: %s%s%s%s",
+							ct, PQgetvalue(result, i, 0),
+							tableinfo.relkind == RELKIND_PARTITIONED_TABLE ? " " : "", ptn_expr,
+							partitioned_note);
+				else
+					printfPQExpBuffer(&buf, "%*s  %s%s%s%s",
+							ctw, "", PQgetvalue(result, i, 0),
+							tableinfo.relkind == RELKIND_PARTITIONED_TABLE ? " " : "", ptn_expr,
+							partitioned_note);
 				if (i < tuples - 1)
 					appendPQExpBufferChar(&buf, ',');
 
-- 
2.7.4


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