REINDEX SCHEMA

Add new SCHEMA option to REINDEX and reindexdb.

Sawada Masahiko

Reviewed by Michael Paquier and Fabrízio de Royes Mello

doc/src/sgml/ref/reindex.sgml

@@ -21,7 +21,7 @@ PostgreSQL documentation
 
  <refsynopsisdiv>
 <synopsis>
-REINDEX { INDEX | TABLE | DATABASE | SYSTEM } <replaceable class="PARAMETER">name</replaceable> [ FORCE ]
+REINDEX { INDEX | TABLE | SCHEMA | DATABASE | SYSTEM } <replaceable class="PARAMETER">name</replaceable> [ FORCE ]
 </synopsis>
  </refsynopsisdiv>
 
@@ -100,6 +100,19 @@ REINDEX { INDEX | TABLE | DATABASE | SYSTEM } <replaceable class="PARAMETER">nam
     </listitem>
    </varlistentry>
 
+   <varlistentry>
+    <term><literal>SCHEMA</literal></term>
+    <listitem>
+     <para>
+      Recreate all indexes of the specified schema.  If a table of this
+      schema has a secondary <quote>TOAST</> table, that is reindexed as
+      well. Indexes on shared system catalogs are also processed.
+      This form of <command>REINDEX</command> cannot be executed inside a
+      transaction block.
+     </para>
+    </listitem>
+   </varlistentry>
+
    <varlistentry>
     <term><literal>DATABASE</literal></term>
     <listitem>

doc/src/sgml/ref/reindexdb.sgml

@@ -24,6 +24,16 @@ PostgreSQL documentation
    <command>reindexdb</command>
    <arg rep="repeat"><replaceable>connection-option</replaceable></arg>
 
+   <arg choice="plain" rep="repeat">
+    <arg choice="opt">
+     <group choice="plain">
+      <arg choice="plain"><option>--schema</option></arg>
+      <arg choice="plain"><option>-S</option></arg>
+     </group>
+     <replaceable>table</replaceable>
+    </arg>
+   </arg>
+
    <arg choice="plain" rep="repeat">
     <arg choice="opt">
      <group choice="plain">
@@ -161,6 +171,18 @@ PostgreSQL documentation
       </listitem>
      </varlistentry>
 
+     <varlistentry>
+      <term><option>-S <replaceable class="parameter">schema</replaceable></></term>
+      <term><option>--schema=<replaceable class="parameter">schema</replaceable></></term>
+      <listitem>
+       <para>
+        Reindex <replaceable class="parameter">schema</replaceable> only.
+        Multiple schemas can be reindexed by writing multiple
+        <option>-S</> switches.
+       </para>
+      </listitem>
+     </varlistentry>
+
      <varlistentry>
       <term><option>-t <replaceable class="parameter">table</replaceable></></term>
       <term><option>--table=<replaceable class="parameter">table</replaceable></></term>

src/backend/commands/indexcmds.c

@@ -1777,34 +1777,58 @@ ReindexTable(RangeVar *relation)
 }
 
 /*
- * ReindexDatabase
- *		Recreate indexes of a database.
+ * ReindexObject
+ *		Recreate indexes of object whose type is defined by objectKind.
  *
  * To reduce the probability of deadlocks, each table is reindexed in a
  * separate transaction, so we can release the lock on it right away.
  * That means this must not be called within a user transaction block!
  */
 Oid
-ReindexDatabase(const char *databaseName, bool do_system, bool do_user)
+ReindexObject(const char *objectName, ReindexObjectType objectKind)
 {
+	Oid			objectOid;
 	Relation	relationRelation;
 	HeapScanDesc scan;
+	ScanKeyData	*scan_keys = NULL;
 	HeapTuple	tuple;
 	MemoryContext private_context;
 	MemoryContext old;
 	List	   *relids = NIL;
 	ListCell   *l;
+	int	num_keys;
 
-	AssertArg(databaseName);
+	AssertArg(objectName);
+	Assert(objectKind == REINDEX_OBJECT_SCHEMA ||
+		   objectKind == REINDEX_OBJECT_SYSTEM ||
+		   objectKind == REINDEX_OBJECT_DATABASE);
 
-	if (strcmp(databaseName, get_database_name(MyDatabaseId)) != 0)
+	/*
+	 * Get OID of object to reindex, being the database currently being
+	 * used by session for a database or for system catalogs, or the schema
+	 * defined by caller. At the same time do permission checks that need
+	 * different processing depending on the object type.
+	 */
+	if (objectKind == REINDEX_OBJECT_SCHEMA)
+	{
+		objectOid = get_namespace_oid(objectName, false);
+
+		if (!pg_namespace_ownercheck(objectOid, GetUserId()))
+			aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_NAMESPACE,
+						   objectName);
+	}
+	else
+	{
+		objectOid = MyDatabaseId;
+
+		if (strcmp(objectName, get_database_name(MyDatabaseId)) != 0)
 			ereport(ERROR,
 					(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
 					 errmsg("can only reindex the currently open database")));
-
 		if (!pg_database_ownercheck(MyDatabaseId, GetUserId()))
 			aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_DATABASE,
-					   databaseName);
+						   objectName);
+	}
 
 	/*
 	 * Create a memory context that will survive forced transaction commits we
@@ -1813,24 +1837,50 @@ ReindexDatabase(const char *databaseName, bool do_system, bool do_user)
 	 * abort cleanup logic.
 	 */
 	private_context = AllocSetContextCreate(PortalContext,
-											"ReindexDatabase",
+											(objectKind == REINDEX_OBJECT_SCHEMA) ?
+											"ReindexSchema" : "ReindexDatabase",
 											ALLOCSET_DEFAULT_MINSIZE,
 											ALLOCSET_DEFAULT_INITSIZE,
 											ALLOCSET_DEFAULT_MAXSIZE);
 
 	/*
-	 * We always want to reindex pg_class first.  This ensures that if there
-	 * is any corruption in pg_class' indexes, they will be fixed before we
-	 * process any other tables.  This is critical because reindexing itself
-	 * will try to update pg_class.
+	 * We always want to reindex pg_class first when reindexing system
+	 * catalogs or a database.  This ensures that if there is any corruption
+	 * in pg_class' indexes, they will be fixed before we process any other
+	 * tables.  This is critical because reindexing itself will try to
+	 * update pg_class.
 	 */
-	if (do_system)
+	if (objectKind == REINDEX_OBJECT_DATABASE ||
+		objectKind == REINDEX_OBJECT_SYSTEM ||
+		(objectKind == REINDEX_OBJECT_SCHEMA &&
+		 IsSystemNamespace(objectOid)))
 	{
 		old = MemoryContextSwitchTo(private_context);
 		relids = lappend_oid(relids, RelationRelationId);
 		MemoryContextSwitchTo(old);
 	}
 
+	/*
+	 * Define the search keys to find the objects to reindex. For a schema,
+	 * we search target relations using relnamespace and relkind, something
+	 * not necessary for a database-wide operation.
+	 */
+	if (objectKind == REINDEX_OBJECT_SCHEMA)
+	{
+		scan_keys = palloc(sizeof(ScanKeyData) * 2);
+		ScanKeyInit(&scan_keys[0],
+					Anum_pg_class_relnamespace,
+					BTEqualStrategyNumber, F_OIDEQ,
+					ObjectIdGetDatum(objectOid));
+		ScanKeyInit(&scan_keys[1],
+					Anum_pg_class_relkind,
+					BTEqualStrategyNumber, F_CHAREQ,
+					'r');
+		num_keys = 2;
+	}
+	else
+		num_keys = 0;
+
 	/*
 	 * Scan pg_class to build a list of the relations we need to reindex.
 	 *
@@ -1838,7 +1888,7 @@ ReindexDatabase(const char *databaseName, bool do_system, bool do_user)
 	 * rels will be processed indirectly by reindex_relation).
 	 */
 	relationRelation = heap_open(RelationRelationId, AccessShareLock);
-	scan = heap_beginscan_catalog(relationRelation, 0, NULL);
+	scan = heap_beginscan_catalog(relationRelation, num_keys, scan_keys);
 	while ((tuple = heap_getnext(scan, ForwardScanDirection)) != NULL)
 	{
 		Form_pg_class classtuple = (Form_pg_class) GETSTRUCT(tuple);
@@ -1854,19 +1904,17 @@ ReindexDatabase(const char *databaseName, bool do_system, bool do_user)
 			continue;
 
 		/* Check user/system classification, and optionally skip */
-		if (IsSystemClass(relid, classtuple))
-		{
-			if (!do_system)
+		if (!IsSystemClass(relid, classtuple) &&
+			objectKind == REINDEX_OBJECT_SYSTEM)
 			continue;
-		}
-		else
-		{
-			if (!do_user)
-				continue;
-		}
 
+		/*
+		 * Already have it in the case of system catalogs being all
+		 * reindexed, of a database or of a system catalog being reindexed
+		 * as a schema.
+		 */
 		if (HeapTupleGetOid(tuple) == RelationRelationId)
-			continue;			/* got it already */
+			continue;
 
 		old = MemoryContextSwitchTo(private_context);
 		relids = lappend_oid(relids, relid);
@@ -1898,6 +1946,8 @@ ReindexDatabase(const char *databaseName, bool do_system, bool do_user)
 	StartTransactionCommand();
 
 	MemoryContextDelete(private_context);
+	if (scan_keys)
+		pfree(scan_keys);
 
-	return MyDatabaseId;
+	return objectOid;
 }

src/backend/parser/gram.y

@@ -404,7 +404,7 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query);
 %type <boolean> copy_from opt_program
 
 %type <ival>	opt_column event cursor_options opt_hold opt_set_data
-%type <objtype>	reindex_type drop_type comment_type security_label_type
+%type <objtype>	drop_type comment_type security_label_type
 
 %type <node>	fetch_args limit_clause select_limit_value
 				offset_clause select_offset_value
@@ -7198,41 +7198,48 @@ opt_if_exists: IF_P EXISTS						{ $$ = TRUE; }
  *****************************************************************************/
 
 ReindexStmt:
-			REINDEX reindex_type qualified_name opt_force
+			REINDEX INDEX qualified_name opt_force
 				{
 					ReindexStmt *n = makeNode(ReindexStmt);
-					n->kind = $2;
+					n->kind = REINDEX_OBJECT_INDEX;
 					n->relation = $3;
 					n->name = NULL;
 					$$ = (Node *)n;
 				}
+			| REINDEX TABLE qualified_name opt_force
+				{
+					ReindexStmt *n = makeNode(ReindexStmt);
+					n->kind = REINDEX_OBJECT_TABLE;
+					n->relation = $3;
+					n->name = NULL;
+					$$ = (Node *)n;
+				}
+			| REINDEX SCHEMA name opt_force
+				{
+					ReindexStmt *n = makeNode(ReindexStmt);
+					n->kind = REINDEX_OBJECT_SCHEMA;
+					n->name = $3;
+					n->relation = NULL;
+					$$ = (Node *)n;
+				}
 			| REINDEX SYSTEM_P name opt_force
 				{
 					ReindexStmt *n = makeNode(ReindexStmt);
-					n->kind = OBJECT_DATABASE;
+					n->kind = REINDEX_OBJECT_SYSTEM;
 					n->name = $3;
 					n->relation = NULL;
-					n->do_system = true;
-					n->do_user = false;
 					$$ = (Node *)n;
 				}
 			| REINDEX DATABASE name opt_force
 				{
 					ReindexStmt *n = makeNode(ReindexStmt);
-					n->kind = OBJECT_DATABASE;
+					n->kind = REINDEX_OBJECT_DATABASE;
 					n->name = $3;
 					n->relation = NULL;
-					n->do_system = true;
-					n->do_user = true;
 					$$ = (Node *)n;
 				}
 		;
 
-reindex_type:
-			INDEX									{ $$ = OBJECT_INDEX; }
-			| TABLE									{ $$ = OBJECT_TABLE; }
-		;
-
 opt_force:	FORCE									{  $$ = TRUE; }
 			| /* EMPTY */							{  $$ = FALSE; }
 		;

src/backend/tcop/utility.c

@@ -749,14 +749,15 @@ standard_ProcessUtility(Node *parsetree,
 				PreventCommandDuringRecovery("REINDEX");
 				switch (stmt->kind)
 				{
-					case OBJECT_INDEX:
+					case REINDEX_OBJECT_INDEX:
 						ReindexIndex(stmt->relation);
 						break;
-					case OBJECT_TABLE:
-					case OBJECT_MATVIEW:
+					case REINDEX_OBJECT_TABLE:
 						ReindexTable(stmt->relation);
 						break;
-					case OBJECT_DATABASE:
+					case REINDEX_OBJECT_SCHEMA:
+					case REINDEX_OBJECT_SYSTEM:
+					case REINDEX_OBJECT_DATABASE:
 
 						/*
 						 * This cannot run inside a user transaction block; if
@@ -765,9 +766,9 @@ standard_ProcessUtility(Node *parsetree,
 						 * intended effect!
 						 */
 						PreventTransactionChain(isTopLevel,
-												"REINDEX DATABASE");
-						ReindexDatabase(stmt->name,
-										stmt->do_system, stmt->do_user);
+												(stmt->kind == REINDEX_OBJECT_SCHEMA) ?
+												"REINDEX SCHEMA" : "REINDEX DATABASE");
+						ReindexObject(stmt->name, stmt->kind);
 						break;
 					default:
 						elog(ERROR, "unrecognized object type: %d",

src/bin/psql/tab-complete.c

@@ -3331,7 +3331,7 @@ psql_completion(const char *text, int start, int end)
 	else if (pg_strcasecmp(prev_wd, "REINDEX") == 0)
 	{
 		static const char *const list_REINDEX[] =
-		{"TABLE", "INDEX", "SYSTEM", "DATABASE", NULL};
+			{"TABLE", "INDEX", "SYSTEM", "SCHEMA", "DATABASE", NULL};
 
 		COMPLETE_WITH_LIST(list_REINDEX);
 	}
@@ -3341,6 +3341,8 @@ psql_completion(const char *text, int start, int end)
 			COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tm, NULL);
 		else if (pg_strcasecmp(prev_wd, "INDEX") == 0)
 			COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_indexes, NULL);
+		else if (pg_strcasecmp(prev_wd, "SCHEMA") == 0 )
+			COMPLETE_WITH_QUERY(Query_for_list_of_schemas);
 		else if (pg_strcasecmp(prev_wd, "SYSTEM") == 0 ||
 				 pg_strcasecmp(prev_wd, "DATABASE") == 0)
 			COMPLETE_WITH_QUERY(Query_for_list_of_databases);

src/bin/scripts/reindexdb.c

@@ -41,6 +41,7 @@ main(int argc, char *argv[])
 		{"password", no_argument, NULL, 'W'},
 		{"echo", no_argument, NULL, 'e'},
 		{"quiet", no_argument, NULL, 'q'},
+		{"schema", required_argument, NULL, 'S'},
 		{"dbname", required_argument, NULL, 'd'},
 		{"all", no_argument, NULL, 'a'},
 		{"system", no_argument, NULL, 's'},
@@ -66,6 +67,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
+	SimpleStringList schemas = {NULL, NULL};
 
 	progname = get_progname(argv[0]);
 	set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pgscripts"));
@@ -73,7 +75,7 @@ main(int argc, char *argv[])
 	handle_help_version_opts(argc, argv, "reindexdb", help);
 
 	/* process command-line options */
-	while ((c = getopt_long(argc, argv, "h:p:U:wWeqd:ast:i:", long_options, &optindex)) != -1)
+	while ((c = getopt_long(argc, argv, "h:p:U:wWeqS:d:ast:i:", long_options, &optindex)) != -1)
 	{
 		switch (c)
 		{
@@ -98,6 +100,9 @@ main(int argc, char *argv[])
 			case 'q':
 				quiet = true;
 				break;
+			case 'S':
+				simple_string_list_append(&schemas, optarg);
+				break;
 			case 'd':
 				dbname = pg_strdup(optarg);
 				break;
@@ -154,6 +159,11 @@ main(int argc, char *argv[])
 			fprintf(stderr, _("%s: cannot reindex all databases and system catalogs at the same time\n"), progname);
 			exit(1);
 		}
+		if (schemas.head != NULL)
+		{
+			fprintf(stderr, _("%s: cannot reindex specific schema(s) in all databases\n"), progname);
+			exit(1);
+		}
 		if (tables.head != NULL)
 		{
 			fprintf(stderr, _("%s: cannot reindex specific table(s) in all databases\n"), progname);
@@ -170,6 +180,11 @@ main(int argc, char *argv[])
 	}
 	else if (syscatalog)
 	{
+		if (schemas.head != NULL)
+		{
+			fprintf(stderr, _("%s: cannot reindex specific schema(s) and system catalogs at the same time\n"), progname);
+			exit(1);
+		}
 		if (tables.head != NULL)
 		{
 			fprintf(stderr, _("%s: cannot reindex specific table(s) and system catalogs at the same time\n"), progname);
@@ -206,6 +221,17 @@ main(int argc, char *argv[])
 				dbname = get_user_name_or_exit(progname);
 		}
 
+		if (schemas.head != NULL)
+		{
+			SimpleStringListCell *cell;
+
+			for (cell = schemas.head; cell; cell = cell->next)
+			{
+				reindex_one_database(cell->val, dbname, "SCHEMA", host, port,
+								   username, prompt_password, progname, echo);
+			}
+		}
+
 		if (indexes.head != NULL)
 		{
 			SimpleStringListCell *cell;
@@ -226,8 +252,8 @@ main(int argc, char *argv[])
 								  username, prompt_password, progname, echo);
 			}
 		}
-		/* reindex database only if neither index nor table is specified */
-		if (indexes.head == NULL && tables.head == NULL)
+		/* reindex database only if neither index nor table nor schema is specified */
+		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(dbname, dbname, "DATABASE", host, port,
 								 username, prompt_password, progname, echo);
 	}
@@ -251,6 +277,8 @@ reindex_one_database(const char *name, const char *dbname, const char *type,
 		appendPQExpBuffer(&sql, " TABLE %s", name);
 	else if (strcmp(type, "INDEX") == 0)
 		appendPQExpBuffer(&sql, " INDEX %s", name);
+	else if (strcmp(type, "SCHEMA") == 0)
+		appendPQExpBuffer(&sql, " SCHEMA %s", name);
 	else if (strcmp(type, "DATABASE") == 0)
 		appendPQExpBuffer(&sql, " DATABASE %s", fmtId(name));
 	appendPQExpBufferStr(&sql, ";");
@@ -266,6 +294,9 @@ reindex_one_database(const char *name, const char *dbname, const char *type,
 		if (strcmp(type, "INDEX") == 0)
 			fprintf(stderr, _("%s: reindexing of index \"%s\" in database \"%s\" failed: %s"),
 					progname, name, dbname, PQerrorMessage(conn));
+		if (strcmp(type, "SCHEMA") == 0)
+			fprintf(stderr, _("%s: reindexing of schema \"%s\" in database \"%s\" failed: %s"),
+					progname, name, dbname, PQerrorMessage(conn));
 		else
 			fprintf(stderr, _("%s: reindexing of database \"%s\" failed: %s"),
 					progname, dbname, PQerrorMessage(conn));
@@ -348,6 +379,7 @@ help(const char *progname)
 	printf(_("  -i, --index=INDEX         recreate specific index(es) only\n"));
 	printf(_("  -q, --quiet               don't write any messages\n"));
 	printf(_("  -s, --system              reindex system catalogs\n"));
+	printf(_("  -S, --schema=SCHEMA       recreate specific schema(s) only\n"));
 	printf(_("  -t, --table=TABLE         reindex specific table(s) only\n"));
 	printf(_("  -V, --version             output version information, then exit\n"));
 	printf(_("  -?, --help                show this help, then exit\n"));

src/bin/scripts/t/090_reindexdb.pl

 use strict;
 use warnings;
 use TestLib;
-use Test::More tests => 16;
+use Test::More tests => 17;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -27,7 +27,10 @@ issues_sql_like(
 	[ 'reindexdb', 'postgres', '-i', 'test1x' ],
 	qr/statement: REINDEX INDEX test1x;/,
 	'reindex specific index');
-
+issues_sql_like(
+	[ 'reindexdb', 'postgres', '-S', 'pg_catalog' ],
+	qr/statement: REINDEX SCHEMA pg_catalog;/,
+	'reindex specific schema');
 issues_sql_like(
 	[ 'reindexdb', 'postgres', '-s' ],
 	qr/statement: REINDEX SYSTEM postgres;/,

src/include/commands/defrem.h

@@ -30,8 +30,7 @@ extern Oid DefineIndex(Oid relationId,
 			bool quiet);
 extern Oid	ReindexIndex(RangeVar *indexRelation);
 extern Oid	ReindexTable(RangeVar *relation);
-extern Oid ReindexDatabase(const char *databaseName,
-				bool do_system, bool do_user);
+extern Oid ReindexObject(const char *databaseName, ReindexObjectType kind);
 extern char *makeObjectName(const char *name1, const char *name2,
 			   const char *label);
 extern char *ChooseRelationName(const char *name1, const char *name2,

src/include/nodes/parsenodes.h

@@ -2721,10 +2721,19 @@ typedef struct ConstraintsSetStmt
  *		REINDEX Statement
  * ----------------------
  */
+typedef enum ReindexObjectType
+{
+	REINDEX_OBJECT_INDEX,	/* index */
+	REINDEX_OBJECT_TABLE,	/* table or materialized view */
+	REINDEX_OBJECT_SCHEMA,	/* schema */
+	REINDEX_OBJECT_SYSTEM,	/* system catalogs */
+	REINDEX_OBJECT_DATABASE	/* database */
+} ReindexObjectType;
+
 typedef struct ReindexStmt
 {
 	NodeTag		type;
-	ObjectType	kind;			/* OBJECT_INDEX, OBJECT_TABLE, etc. */
+	ReindexObjectType	kind;	/* REINDEX_OBJECT_INDEX, REINDEX_OBJECT_TABLE, etc. */
 	RangeVar   *relation;		/* Table or index to reindex */
 	const char *name;			/* name of database to reindex */
 	bool		do_system;		/* include system tables in database case */

src/test/regress/expected/create_index.out

@@ -2831,3 +2831,34 @@ explain (costs off)
    Index Cond: ((thousand = 1) AND (tenthous = 1001))
 (2 rows)
 
+--
+-- REINDEX SCHEMA
+--
+REINDEX SCHEMA schema_to_reindex; -- failure, schema does not exist
+ERROR:  schema "schema_to_reindex" does not exist
+CREATE SCHEMA schema_to_reindex;
+CREATE TABLE schema_to_reindex.table1(col1 SERIAL PRIMARY KEY);
+CREATE TABLE schema_to_reindex.table2(col1 SERIAL PRIMARY KEY, col2 VARCHAR(100) NOT NULL);
+CREATE INDEX ON schema_to_reindex.table2(col2);
+REINDEX SCHEMA schema_to_reindex;
+NOTICE:  table "schema_to_reindex.table1" was reindexed
+NOTICE:  table "schema_to_reindex.table2" was reindexed
+BEGIN;
+REINDEX SCHEMA schema_to_reindex; -- failure, cannot run in a transaction
+ERROR:  REINDEX SCHEMA cannot run inside a transaction block
+END;
+-- Failure for unauthorized user
+CREATE ROLE reindexuser login;
+SET SESSION ROLE user_reindex;
+ERROR:  role "user_reindex" does not exist
+REINDEX SCHEMA schema_to_reindex;
+NOTICE:  table "schema_to_reindex.table1" was reindexed
+NOTICE:  table "schema_to_reindex.table2" was reindexed
+-- Clean up
+RESET ROLE;
+DROP ROLE user_reindex;
+ERROR:  role "user_reindex" does not exist
+DROP SCHEMA schema_to_reindex CASCADE;
+NOTICE:  drop cascades to 2 other objects
+DETAIL:  drop cascades to table schema_to_reindex.table1
+drop cascades to table schema_to_reindex.table2

src/test/regress/sql/create_index.sql

@@ -964,3 +964,26 @@ RESET enable_indexscan;
 
 explain (costs off)
   select * from tenk1 where (thousand, tenthous) in ((1,1001), (null,null));
+
+--
+-- REINDEX SCHEMA
+--
+REINDEX SCHEMA schema_to_reindex; -- failure, schema does not exist
+CREATE SCHEMA schema_to_reindex;
+CREATE TABLE schema_to_reindex.table1(col1 SERIAL PRIMARY KEY);
+CREATE TABLE schema_to_reindex.table2(col1 SERIAL PRIMARY KEY, col2 VARCHAR(100) NOT NULL);
+CREATE INDEX ON schema_to_reindex.table2(col2);
+REINDEX SCHEMA schema_to_reindex;
+BEGIN;
+REINDEX SCHEMA schema_to_reindex; -- failure, cannot run in a transaction
+END;
+
+-- Failure for unauthorized user
+CREATE ROLE reindexuser login;
+SET SESSION ROLE user_reindex;
+REINDEX SCHEMA schema_to_reindex;
+
+-- Clean up
+RESET ROLE;
+DROP ROLE user_reindex;
+DROP SCHEMA schema_to_reindex CASCADE;