From 43e922b758373197ab302a40a110f55cd9140bd1 Mon Sep 17 00:00:00 2001
From: Yugo Nagata <nagata@sraoss.co.jp>
Date: Fri, 20 Dec 2019 10:21:54 +0900
Subject: [PATCH v25 06/15] Add Incremental View Maintenance support to psql

Add tab completion and meta-command output for IVM.
---
 src/bin/psql/describe.c     | 32 +++++++++++++++++++++++++++++++-
 src/bin/psql/tab-complete.c | 14 +++++++++-----
 2 files changed, 40 insertions(+), 6 deletions(-)

diff --git a/src/bin/psql/describe.c b/src/bin/psql/describe.c
index 346cd92793..601eca408b 100644
--- a/src/bin/psql/describe.c
+++ b/src/bin/psql/describe.c
@@ -1480,6 +1480,7 @@ describeOneTableDetails(const char *schemaname,
 		char		relpersistence;
 		char		relreplident;
 		char	   *relam;
+		bool		isivm;
 	}			tableinfo;
 	bool		show_column_details = false;
 
@@ -1492,7 +1493,26 @@ describeOneTableDetails(const char *schemaname,
 	initPQExpBuffer(&tmpbuf);
 
 	/* Get general table info */
-	if (pset.sversion >= 120000)
+	if (pset.sversion >= 150000)
+	{
+		printfPQExpBuffer(&buf,
+						  "SELECT c.relchecks, c.relkind, c.relhasindex, c.relhasrules, "
+						  "c.relhastriggers, c.relrowsecurity, c.relforcerowsecurity, "
+						  "false AS relhasoids, c.relispartition, %s, c.reltablespace, "
+						  "CASE WHEN c.reloftype = 0 THEN '' ELSE c.reloftype::pg_catalog.regtype::pg_catalog.text END, "
+						  "c.relpersistence, c.relreplident, am.amname, "
+						  "c.relisivm\n"
+						  "FROM pg_catalog.pg_class c\n "
+						  "LEFT JOIN pg_catalog.pg_class tc ON (c.reltoastrelid = tc.oid)\n"
+						  "LEFT JOIN pg_catalog.pg_am am ON (c.relam = am.oid)\n"
+						  "WHERE c.oid = '%s';",
+						  (verbose ?
+						   "pg_catalog.array_to_string(c.reloptions || "
+						   "array(select 'toast.' || x from pg_catalog.unnest(tc.reloptions) x), ', ')\n"
+						   : "''"),
+						  oid);
+	}
+	else if (pset.sversion >= 120000)
 	{
 		printfPQExpBuffer(&buf,
 						  "SELECT c.relchecks, c.relkind, c.relhasindex, c.relhasrules, "
@@ -1612,6 +1632,10 @@ describeOneTableDetails(const char *schemaname,
 			(char *) NULL : pg_strdup(PQgetvalue(res, 0, 14));
 	else
 		tableinfo.relam = NULL;
+	if (pset.sversion >= 150000)
+		tableinfo.isivm = strcmp(PQgetvalue(res, 0, 15), "t") == 0;
+	else
+		tableinfo.isivm = false;
 	PQclear(res);
 	res = NULL;
 
@@ -3375,6 +3399,12 @@ describeOneTableDetails(const char *schemaname,
 			printfPQExpBuffer(&buf, _("Access method: %s"), tableinfo.relam);
 			printTableAddFooter(&cont, buf.data);
 		}
+
+		/* Incremental view maintance info */
+		if (verbose && tableinfo.relkind == RELKIND_MATVIEW && tableinfo.isivm)
+		{
+			printTableAddFooter(&cont, _("Incremental view maintenance: yes"));
+		}
 	}
 
 	/* reloptions, if verbose */
diff --git a/src/bin/psql/tab-complete.c b/src/bin/psql/tab-complete.c
index d1e421bc0f..5832e37aa0 100644
--- a/src/bin/psql/tab-complete.c
+++ b/src/bin/psql/tab-complete.c
@@ -1172,6 +1172,7 @@ static const pgsql_thing_t words_after_create[] = {
 	{"FOREIGN TABLE", NULL, NULL, NULL},
 	{"FUNCTION", NULL, NULL, Query_for_list_of_functions},
 	{"GROUP", Query_for_list_of_roles},
+	{"INCREMENTAL MATERIALIZED VIEW", NULL, NULL, &Query_for_list_of_matviews, THING_NO_DROP | THING_NO_ALTER},
 	{"INDEX", NULL, NULL, &Query_for_list_of_indexes},
 	{"LANGUAGE", Query_for_list_of_languages},
 	{"LARGE OBJECT", NULL, NULL, NULL, NULL, THING_NO_CREATE | THING_NO_DROP},
@@ -2986,7 +2987,7 @@ psql_completion(const char *text, int start, int end)
 		COMPLETE_WITH("SEQUENCE", "TABLE", "VIEW");
 	/* Complete "CREATE UNLOGGED" with TABLE or MATVIEW */
 	else if (TailMatches("CREATE", "UNLOGGED"))
-		COMPLETE_WITH("TABLE", "MATERIALIZED VIEW");
+		COMPLETE_WITH("TABLE", "MATERIALIZED VIEW", "INCREMENTAL MATERIALIZED VIEW");
 	/* Complete PARTITION BY with RANGE ( or LIST ( or ... */
 	else if (TailMatches("PARTITION", "BY"))
 		COMPLETE_WITH("RANGE (", "LIST (", "HASH (");
@@ -3302,13 +3303,16 @@ psql_completion(const char *text, int start, int end)
 		COMPLETE_WITH("SELECT");
 
 /* CREATE MATERIALIZED VIEW */
-	else if (Matches("CREATE", "MATERIALIZED"))
+	else if (Matches("CREATE", "MATERIALIZED") ||
+			 Matches("CREATE", "INCREMENTAL", "MATERIALIZED"))
 		COMPLETE_WITH("VIEW");
-	/* Complete CREATE MATERIALIZED VIEW <name> with AS */
-	else if (Matches("CREATE", "MATERIALIZED", "VIEW", MatchAny))
+	/* Complete CREATE MATERIALIZED VIEW <name> with AS  */
+	else if (Matches("CREATE", "MATERIALIZED", "VIEW", MatchAny) ||
+			 Matches("CREATE", "INCREMENTAL", "MATERIALIZED", "VIEW", MatchAny))
 		COMPLETE_WITH("AS");
 	/* Complete "CREATE MATERIALIZED VIEW <sth> AS with "SELECT" */
-	else if (Matches("CREATE", "MATERIALIZED", "VIEW", MatchAny, "AS"))
+	else if (Matches("CREATE", "MATERIALIZED", "VIEW", MatchAny, "AS") ||
+			 Matches("CREATE", "INCREMENTAL", "MATERIALIZED", "VIEW", MatchAny, "AS"))
 		COMPLETE_WITH("SELECT");
 
 /* CREATE EVENT TRIGGER */
-- 
2.17.1