diff --git a/src/bin/psql/tab-complete.c b/src/bin/psql/tab-complete.c
index 0b10472c12e2fa76e8df10dde751e0c3db6acb2b..b3dbfb20217c30c293aafb09ed1d803b83e8fdec 100644
--- a/src/bin/psql/tab-complete.c
+++ b/src/bin/psql/tab-complete.c
@@ -3,7 +3,7 @@
  *
  * Copyright (c) 2000-2010, PostgreSQL Global Development Group
  *
- * $PostgreSQL: pgsql/src/bin/psql/tab-complete.c,v 1.194 2010/02/16 22:34:50 tgl Exp $
+ * $PostgreSQL: pgsql/src/bin/psql/tab-complete.c,v 1.195 2010/02/17 04:09:40 itagaki Exp $
  */
 
 /*----------------------------------------------------------------------
@@ -66,6 +66,8 @@ extern char *filename_completion_function();
 #define completion_matches rl_completion_matches
 #endif
 
+/* word break characters */
+#define WORD_BREAKS		"\t\n@$><=;|&{() "
 
 /*
  * This struct is used to define "schema queries", which are custom-built
@@ -500,6 +502,11 @@ static const SchemaQuery Query_for_list_of_views = {
 "   FROM pg_catalog.pg_user_mappings "\
 "  WHERE substring(pg_catalog.quote_ident(usename),1,%d)='%s'"
 
+#define Query_for_list_of_access_methods \
+" SELECT pg_catalog.quote_ident(amname) "\
+"   FROM pg_catalog.pg_am "\
+"  WHERE substring(pg_catalog.quote_ident(amname),1,%d)='%s'"
+
 /*
  * This is a list of all "things" in Pgsql, which can show up after CREATE or
  * DROP; and there is also a query to get a list of them.
@@ -571,8 +578,6 @@ static PGresult *exec_query(const char *query);
 
 static char *previous_word(int point, int skip);
 
-static int	find_open_parenthesis(int end);
-
 #if 0
 static char *quote_file_name(char *text, int match_type, char *quote_pointer);
 static char *dequote_file_name(char *text, char quote_char);
@@ -586,7 +591,7 @@ initialize_readline(void)
 	rl_readline_name = (char *) pset.progname;
 	rl_attempted_completion_function = (void *) psql_completion;
 
-	rl_basic_word_break_characters = "\t\n@$><=;|&{( ";
+	rl_basic_word_break_characters = WORD_BREAKS;
 
 	completion_max_records = 1000;
 
@@ -749,6 +754,33 @@ psql_completion(char *text, int start, int end)
 
 		COMPLETE_WITH_LIST(list_ALTERINDEX);
 	}
+	/* ALTER INDEX <name> SET */
+	else if (pg_strcasecmp(prev4_wd, "ALTER") == 0 &&
+			 pg_strcasecmp(prev3_wd, "INDEX") == 0 &&
+			 pg_strcasecmp(prev_wd, "SET") == 0)
+	{
+		static const char *const list_ALTERINDEXSET[] =
+		{"(", "TABLESPACE", NULL};
+
+		COMPLETE_WITH_LIST(list_ALTERINDEXSET);
+	}
+	/* ALTER INDEX <name> RESET */
+	else if (pg_strcasecmp(prev4_wd, "ALTER") == 0 &&
+			 pg_strcasecmp(prev3_wd, "INDEX") == 0 &&
+			 pg_strcasecmp(prev_wd, "RESET") == 0)
+		COMPLETE_WITH_CONST("(");
+	/* ALTER INDEX <foo> SET|RESET ( */
+	else if (pg_strcasecmp(prev5_wd, "ALTER") == 0 &&
+			 pg_strcasecmp(prev4_wd, "INDEX") == 0 &&
+			 (pg_strcasecmp(prev2_wd, "SET") == 0 ||
+			  pg_strcasecmp(prev2_wd, "RESET") == 0) &&
+			 pg_strcasecmp(prev_wd, "(") == 0)
+	{
+		static const char *const list_INDEXOPTIONS[] =
+		{"fillfactor", "fastupdate", NULL};
+
+		COMPLETE_WITH_LIST(list_INDEXOPTIONS);
+	}
 
 	/* ALTER LANGUAGE <name> */
 	else if (pg_strcasecmp(prev3_wd, "ALTER") == 0 &&
@@ -977,10 +1009,11 @@ psql_completion(char *text, int start, int end)
 			  pg_strcasecmp(prev2_wd, "ALTER") == 0))
 	{
 		static const char *const list_COLUMNALTER[] =
-		{"TYPE", "SET", "DROP", NULL};
+		{"TYPE", "SET", "RESET", "DROP", NULL};
 
 		COMPLETE_WITH_LIST(list_COLUMNALTER);
 	}
+	/* ALTER TABLE ALTER [COLUMN] <foo> SET */
 	else if (((pg_strcasecmp(prev4_wd, "ALTER") == 0 &&
 			   pg_strcasecmp(prev3_wd, "COLUMN") == 0) ||
 			  (pg_strcasecmp(prev5_wd, "TABLE") == 0 &&
@@ -988,10 +1021,35 @@ psql_completion(char *text, int start, int end)
 			 pg_strcasecmp(prev_wd, "SET") == 0)
 	{
 		static const char *const list_COLUMNSET[] =
-		{"DEFAULT", "NOT NULL", "STATISTICS", "STORAGE", NULL};
+		{"(", "DEFAULT", "NOT NULL", "STATISTICS", "STORAGE", NULL};
 
 		COMPLETE_WITH_LIST(list_COLUMNSET);
 	}
+	/* ALTER TABLE ALTER [COLUMN] <foo> SET ( */
+	else if (((pg_strcasecmp(prev5_wd, "ALTER") == 0 &&
+			   pg_strcasecmp(prev4_wd, "COLUMN") == 0) ||
+			  pg_strcasecmp(prev4_wd, "ALTER") == 0) &&
+			 pg_strcasecmp(prev2_wd, "SET") == 0 &&
+			 pg_strcasecmp(prev_wd, "(") == 0)
+	{
+		static const char *const list_COLUMNOPTIONS[] =
+		{"n_distinct", "n_distinct_inherited", NULL};
+
+		COMPLETE_WITH_LIST(list_COLUMNOPTIONS);
+	}
+	/* ALTER TABLE ALTER [COLUMN] <foo> SET STORAGE */
+	else if (((pg_strcasecmp(prev5_wd, "ALTER") == 0 &&
+			   pg_strcasecmp(prev4_wd, "COLUMN") == 0) ||
+			  pg_strcasecmp(prev4_wd, "ALTER") == 0) &&
+			 pg_strcasecmp(prev2_wd, "SET") == 0 &&
+			 pg_strcasecmp(prev_wd, "STORAGE") == 0)
+	{
+		static const char *const list_COLUMNSTORAGE[] =
+		{"PLAIN", "EXTERNAL", "EXTENDED", "MAIN", NULL};
+
+		COMPLETE_WITH_LIST(list_COLUMNSTORAGE);
+	}
+	/* ALTER TABLE ALTER [COLUMN] <foo> DROP */
 	else if (((pg_strcasecmp(prev4_wd, "ALTER") == 0 &&
 			   pg_strcasecmp(prev3_wd, "COLUMN") == 0) ||
 			  (pg_strcasecmp(prev5_wd, "TABLE") == 0 &&
@@ -1018,7 +1076,7 @@ psql_completion(char *text, int start, int end)
 			 pg_strcasecmp(prev_wd, "SET") == 0)
 	{
 		static const char *const list_TABLESET[] =
-		{"WITHOUT", "TABLESPACE", "SCHEMA", NULL};
+		{"(", "WITHOUT", "TABLESPACE", "SCHEMA", NULL};
 
 		COMPLETE_WITH_LIST(list_TABLESET);
 	}
@@ -1037,15 +1095,73 @@ psql_completion(char *text, int start, int end)
 
 		COMPLETE_WITH_LIST(list_TABLESET2);
 	}
-	/* we have ALTER TABLESPACE, so suggest RENAME TO, OWNER TO */
+	/* ALTER TABLE <foo> RESET */
+	else if (pg_strcasecmp(prev3_wd, "TABLE") == 0 &&
+			 pg_strcasecmp(prev_wd, "RESET") == 0)
+		COMPLETE_WITH_CONST("(");
+	/* ALTER TABLE <foo> SET|RESET ( */
+	else if (pg_strcasecmp(prev4_wd, "TABLE") == 0 &&
+			 (pg_strcasecmp(prev2_wd, "SET") == 0 ||
+			  pg_strcasecmp(prev2_wd, "RESET") == 0) &&
+			 pg_strcasecmp(prev_wd, "(") == 0)
+	{
+		static const char *const list_TABLEOPTIONS[] =
+		{
+			"autovacuum_analyze_scale_factor",
+			"autovacuum_analyze_threshold",
+			"autovacuum_enabled",
+			"autovacuum_freeze_max_age",
+			"autovacuum_freeze_min_age",
+			"autovacuum_freeze_table_age",
+			"autovacuum_vacuum_cost_delay",
+			"autovacuum_vacuum_cost_limit",
+			"autovacuum_vacuum_scale_factor",
+			"autovacuum_vacuum_threshold",
+			"fillfactor",
+			"toast.autovacuum_analyze_scale_factor",
+			"toast.autovacuum_analyze_threshold",
+			"toast.autovacuum_enabled",
+			"toast.autovacuum_freeze_max_age",
+			"toast.autovacuum_freeze_min_age",
+			"toast.autovacuum_freeze_table_age",
+			"toast.autovacuum_vacuum_cost_delay",
+			"toast.autovacuum_vacuum_cost_limit",
+			"toast.autovacuum_vacuum_scale_factor",
+			"toast.autovacuum_vacuum_threshold",
+			NULL
+		};
+
+		COMPLETE_WITH_LIST(list_TABLEOPTIONS);
+	}
+
+	/* ALTER TABLESPACE <foo> with RENAME TO, OWNER TO, SET, RESET */
 	else if (pg_strcasecmp(prev3_wd, "ALTER") == 0 &&
 			 pg_strcasecmp(prev2_wd, "TABLESPACE") == 0)
 	{
 		static const char *const list_ALTERTSPC[] =
-		{"RENAME TO", "OWNER TO", NULL};
+		{"RENAME TO", "OWNER TO", "SET", "RESET", NULL};
 
 		COMPLETE_WITH_LIST(list_ALTERTSPC);
 	}
+	/* ALTER TABLESPACE <foo> SET|RESET */
+	else if (pg_strcasecmp(prev4_wd, "ALTER") == 0 &&
+			 pg_strcasecmp(prev3_wd, "TABLESPACE") == 0 &&
+			 (pg_strcasecmp(prev_wd, "SET") == 0 ||
+			  pg_strcasecmp(prev_wd, "RESET") == 0))
+		COMPLETE_WITH_CONST("(");
+	/* ALTER TABLESPACE <foo> SET|RESET ( */
+	else if (pg_strcasecmp(prev5_wd, "ALTER") == 0 &&
+			 pg_strcasecmp(prev4_wd, "TABLESPACE") == 0 &&
+			 (pg_strcasecmp(prev2_wd, "SET") == 0 ||
+			  pg_strcasecmp(prev2_wd, "RESET") == 0) &&
+			 pg_strcasecmp(prev_wd, "(") == 0)
+	{
+		static const char *const list_TABLESPACEOPTIONS[] =
+		{"seq_page_cost", "random_page_cost", NULL};
+
+		COMPLETE_WITH_LIST(list_TABLESPACEOPTIONS);
+	}
+
 	/* ALTER TEXT SEARCH */
 	else if (pg_strcasecmp(prev3_wd, "ALTER") == 0 &&
 			 pg_strcasecmp(prev2_wd, "TEXT") == 0 &&
@@ -1282,44 +1398,66 @@ psql_completion(char *text, int start, int end)
 	else if (pg_strcasecmp(prev2_wd, "CREATE") == 0 &&
 			 pg_strcasecmp(prev_wd, "UNIQUE") == 0)
 		COMPLETE_WITH_CONST("INDEX");
-	/* If we have CREATE|UNIQUE INDEX <sth>, then add "ON" */
-	else if (pg_strcasecmp(prev2_wd, "INDEX") == 0 &&
-			 (pg_strcasecmp(prev3_wd, "CREATE") == 0 ||
-			  pg_strcasecmp(prev3_wd, "UNIQUE") == 0))
-		COMPLETE_WITH_CONST("ON");
-	/* Complete ... INDEX <name> ON with a list of tables  */
-	else if (pg_strcasecmp(prev3_wd, "INDEX") == 0 &&
+	/* If we have CREATE|UNIQUE INDEX, then add "ON" and existing indexes */
+	else if (pg_strcasecmp(prev_wd, "INDEX") == 0 &&
+			 (pg_strcasecmp(prev2_wd, "CREATE") == 0 ||
+			  pg_strcasecmp(prev2_wd, "UNIQUE") == 0))
+		COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_indexes,
+								   " UNION SELECT 'ON'"
+								   " UNION SELECT 'CONCURRENTLY'");
+	/* Complete ... INDEX [<name>] ON with a list of tables  */
+	else if ((pg_strcasecmp(prev3_wd, "INDEX") == 0 ||
+			  pg_strcasecmp(prev2_wd, "INDEX") == 0 ||
+			  pg_strcasecmp(prev2_wd, "CONCURRENTLY") == 0) &&
 			 pg_strcasecmp(prev_wd, "ON") == 0)
 		COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
+	/* If we have CREATE|UNIQUE INDEX <sth> CONCURRENTLY, then add "ON" */
+	else if ((pg_strcasecmp(prev3_wd, "INDEX") == 0 ||
+			  pg_strcasecmp(prev2_wd, "INDEX") == 0) &&
+			 pg_strcasecmp(prev_wd, "CONCURRENTLY") == 0)
+		COMPLETE_WITH_CONST("ON");
+	/* If we have CREATE|UNIQUE INDEX <sth>, then add "ON" or "CONCURRENTLY" */
+	else if ((pg_strcasecmp(prev3_wd, "CREATE") == 0 ||
+			  pg_strcasecmp(prev3_wd, "UNIQUE") == 0) &&
+			 pg_strcasecmp(prev2_wd, "INDEX") == 0)
+	{
+		static const char *const list_CREATE_INDEX[] =
+		{"CONCURRENTLY", "ON", NULL};
+
+		COMPLETE_WITH_LIST(list_CREATE_INDEX);
+	}
 
 	/*
 	 * Complete INDEX <name> ON <table> with a list of table columns (which
 	 * should really be in parens)
 	 */
-	else if (pg_strcasecmp(prev4_wd, "INDEX") == 0 &&
+	else if ((pg_strcasecmp(prev4_wd, "INDEX") == 0 ||
+			  pg_strcasecmp(prev3_wd, "INDEX") == 0 ||
+			  pg_strcasecmp(prev3_wd, "CONCURRENTLY") == 0) &&
 			 pg_strcasecmp(prev2_wd, "ON") == 0)
 	{
-		if (find_open_parenthesis(end))
-			COMPLETE_WITH_ATTR(prev_wd, "");
-		else
-			COMPLETE_WITH_CONST("(");
+		static const char *const list_CREATE_INDEX2[] =
+		{"(", "USING",  NULL};
+
+		COMPLETE_WITH_LIST(list_CREATE_INDEX2);
 	}
-	else if (pg_strcasecmp(prev5_wd, "INDEX") == 0 &&
+	else if ((pg_strcasecmp(prev5_wd, "INDEX") == 0 ||
+			  pg_strcasecmp(prev4_wd, "INDEX") == 0 ||
+			  pg_strcasecmp(prev4_wd, "CONCURRENTLY") == 0) &&
 			 pg_strcasecmp(prev3_wd, "ON") == 0 &&
 			 pg_strcasecmp(prev_wd, "(") == 0)
 		COMPLETE_WITH_ATTR(prev2_wd, "");
 	/* same if you put in USING */
-	else if (pg_strcasecmp(prev4_wd, "ON") == 0 &&
-			 pg_strcasecmp(prev2_wd, "USING") == 0)
-		COMPLETE_WITH_ATTR(prev3_wd, "");
+	else if (pg_strcasecmp(prev5_wd, "ON") == 0 &&
+			 pg_strcasecmp(prev3_wd, "USING") == 0 &&
+			 pg_strcasecmp(prev_wd, "(") == 0)
+		COMPLETE_WITH_ATTR(prev4_wd, "");
 	/* Complete USING with an index method */
 	else if (pg_strcasecmp(prev_wd, "USING") == 0)
-	{
-		static const char *const index_mth[] =
-		{"BTREE", "HASH", "GIN", "GIST", NULL};
-
-		COMPLETE_WITH_LIST(index_mth);
-	}
+		COMPLETE_WITH_QUERY(Query_for_list_of_access_methods);
+	else if (pg_strcasecmp(prev4_wd, "ON") == 0 &&
+			 pg_strcasecmp(prev2_wd, "USING") == 0)
+		COMPLETE_WITH_CONST("(");
 
 /* CREATE RULE */
 	/* Complete "CREATE RULE <sth>" with "AS" */
@@ -1417,6 +1555,17 @@ psql_completion(char *text, int start, int end)
 
 		COMPLETE_WITH_LIST(list_CREATETRIGGER);
 	}
+	/* complete CREATE TRIGGER <name> BEFORE,AFTER with an event */
+	else if (pg_strcasecmp(prev4_wd, "CREATE") == 0 &&
+			 pg_strcasecmp(prev3_wd, "TRIGGER") == 0 &&
+			 (pg_strcasecmp(prev_wd, "BEFORE") == 0 ||
+			  pg_strcasecmp(prev_wd, "AFTER") == 0))
+	{
+		static const char *const list_CREATETRIGGER_EVENTS[] =
+		{"INSERT", "DELETE", "UPDATE", "TRUNCATE", NULL};
+
+		COMPLETE_WITH_LIST(list_CREATETRIGGER_EVENTS);
+	}
 	/* complete CREATE TRIGGER <name> BEFORE,AFTER sth with OR,ON */
 	else if (pg_strcasecmp(prev5_wd, "CREATE") == 0 &&
 			 pg_strcasecmp(prev4_wd, "TRIGGER") == 0 &&
@@ -1428,6 +1577,15 @@ psql_completion(char *text, int start, int end)
 
 		COMPLETE_WITH_LIST(list_CREATETRIGGER2);
 	}
+	/* complete CREATE TRIGGER <name> BEFORE,AFTER event ON with a list of tables */
+	else if (pg_strcasecmp(prev5_wd, "TRIGGER") == 0 &&
+			 (pg_strcasecmp(prev3_wd, "BEFORE") == 0 ||
+			  pg_strcasecmp(prev3_wd, "AFTER") == 0) &&
+			 pg_strcasecmp(prev_wd, "ON") == 0)
+		COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
+	/* complete CREATE TRIGGER ... EXECUTE with PROCEDURE */
+	else if (pg_strcasecmp(prev_wd, "EXECUTE") == 0)
+		COMPLETE_WITH_CONST("PROCEDURE");
 
 /* CREATE ROLE,USER,GROUP */
 	else if (pg_strcasecmp(prev3_wd, "CREATE") == 0 &&
@@ -1487,6 +1645,7 @@ psql_completion(char *text, int start, int end)
 		COMPLETE_WITH_LIST(list_DECLARE);
 	}
 
+/* CURSOR */
 	else if (pg_strcasecmp(prev_wd, "CURSOR") == 0)
 	{
 		static const char *const list_DECLARECURSOR[] =
@@ -1579,21 +1738,10 @@ psql_completion(char *text, int start, int end)
 			   pg_strcasecmp(prev2_wd, "TEMPLATE") == 0))
 		)
 	{
-		if ((pg_strcasecmp(prev3_wd, "DROP") == 0) && (pg_strcasecmp(prev2_wd, "FUNCTION") == 0))
+		if (pg_strcasecmp(prev3_wd, "DROP") == 0 &&
+			pg_strcasecmp(prev2_wd, "FUNCTION") == 0)
 		{
-			if (find_open_parenthesis(end))
-			{
-				static const char func_args_query[] = "select pg_catalog.oidvectortypes(proargtypes)||')' from pg_proc where proname='%s'";
-				char	   *tmp_buf = malloc(strlen(func_args_query) + strlen(prev_wd));
-
-				sprintf(tmp_buf, func_args_query, prev_wd);
-				COMPLETE_WITH_QUERY(tmp_buf);
-				free(tmp_buf);
-			}
-			else
-			{
-				COMPLETE_WITH_CONST("(");
-			}
+			COMPLETE_WITH_CONST("(");
 		}
 		else
 		{
@@ -1604,7 +1752,8 @@ psql_completion(char *text, int start, int end)
 		}
 	}
 	else if (pg_strcasecmp(prev4_wd, "DROP") == 0 &&
-			 pg_strcasecmp(prev3_wd, "FUNCTION") == 0 &&
+			 (pg_strcasecmp(prev3_wd, "AGGREGATE") == 0 ||
+			  pg_strcasecmp(prev3_wd, "FUNCTION") == 0) &&
 			 pg_strcasecmp(prev_wd, "(") == 0)
 	{
 		static const char func_args_query[] = "select pg_catalog.oidvectortypes(proargtypes)||')' from pg_proc where proname='%s'";
@@ -1712,12 +1861,12 @@ psql_completion(char *text, int start, int end)
 	else if (pg_strcasecmp(prev_wd, "GRANT") == 0 ||
 			 pg_strcasecmp(prev_wd, "REVOKE") == 0)
 	{
-		static const char *const list_privileg[] =
+		static const char *const list_privilege[] =
 		{"SELECT", "INSERT", "UPDATE", "DELETE", "TRUNCATE", "REFERENCES",
 			"TRIGGER", "CREATE", "CONNECT", "TEMPORARY", "EXECUTE", "USAGE",
 		"ALL", NULL};
 
-		COMPLETE_WITH_LIST(list_privileg);
+		COMPLETE_WITH_LIST(list_privilege);
 	}
 	/* Complete GRANT/REVOKE <sth> with "ON" */
 	else if (pg_strcasecmp(prev2_wd, "GRANT") == 0 ||
@@ -1747,8 +1896,18 @@ psql_completion(char *text, int start, int end)
 								   " UNION SELECT 'LARGE OBJECT'"
 								   " UNION SELECT 'SCHEMA'"
 								   " UNION SELECT 'TABLESPACE'");
+	else if ((pg_strcasecmp(prev4_wd, "GRANT") == 0 ||
+			  pg_strcasecmp(prev4_wd, "REVOKE") == 0) &&
+			 pg_strcasecmp(prev2_wd, "ON") == 0 &&
+			 pg_strcasecmp(prev_wd, "FOREIGN") == 0)
+	{
+		static const char *const list_privilege_foreign[] =
+		{"DATA WRAPPER", "SERVER", NULL};
+
+		COMPLETE_WITH_LIST(list_privilege_foreign);
+	}
 
-	/* Complete "GRANT/REVOKE * ON * " with "TO" */
+	/* Complete "GRANT/REVOKE * ON * " with "TO/FROM" */
 	else if ((pg_strcasecmp(prev4_wd, "GRANT") == 0 ||
 			  pg_strcasecmp(prev4_wd, "REVOKE") == 0) &&
 			 pg_strcasecmp(prev2_wd, "ON") == 0)
@@ -1770,12 +1929,22 @@ psql_completion(char *text, int start, int end)
 	}
 
 	/* Complete "GRANT/REVOKE * ON * TO/FROM" with username, GROUP, or PUBLIC */
-	else if (pg_strcasecmp(prev3_wd, "ON") == 0 &&
-			 ((pg_strcasecmp(prev5_wd, "GRANT") == 0 &&
-			   pg_strcasecmp(prev_wd, "TO") == 0) ||
-			  (pg_strcasecmp(prev5_wd, "REVOKE") == 0 &&
-			   pg_strcasecmp(prev_wd, "FROM") == 0)))
-		COMPLETE_WITH_QUERY(Query_for_list_of_grant_roles);
+	else if (pg_strcasecmp(prev5_wd, "GRANT") == 0 &&
+			 pg_strcasecmp(prev3_wd, "ON") == 0)
+	{
+		if (pg_strcasecmp(prev_wd, "TO") == 0)
+			COMPLETE_WITH_QUERY(Query_for_list_of_grant_roles);
+		else
+			COMPLETE_WITH_CONST("TO");
+	}
+	else if (pg_strcasecmp(prev5_wd, "REVOKE") == 0 &&
+			 pg_strcasecmp(prev3_wd, "ON") == 0)
+	{
+		if (pg_strcasecmp(prev_wd, "FROM") == 0)
+			COMPLETE_WITH_QUERY(Query_for_list_of_grant_roles);
+		else
+			COMPLETE_WITH_CONST("FROM");
+	}
 
 /* GROUP BY */
 	else if (pg_strcasecmp(prev3_wd, "FROM") == 0 &&
@@ -1791,20 +1960,20 @@ psql_completion(char *text, int start, int end)
 			 pg_strcasecmp(prev_wd, "INTO") == 0)
 		COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
 	/* Complete "INSERT INTO <table> (" with attribute names */
-	else if (rl_line_buffer[start - 1] == '(' &&
-			 pg_strcasecmp(prev3_wd, "INSERT") == 0 &&
-			 pg_strcasecmp(prev2_wd, "INTO") == 0)
-		COMPLETE_WITH_ATTR(prev_wd, "");
+	else if (pg_strcasecmp(prev4_wd, "INSERT") == 0 &&
+			 pg_strcasecmp(prev3_wd, "INTO") == 0 &&
+			 pg_strcasecmp(prev_wd, "(") == 0)
+		COMPLETE_WITH_ATTR(prev2_wd, "");
 
 	/*
-	 * Complete INSERT INTO <table> with "VALUES" or "SELECT" or "TABLE" or
-	 * "DEFAULT VALUES"
+	 * Complete INSERT INTO <table> with "(" or "VALUES" or "SELECT" or "TABLE"
+	 * or "DEFAULT VALUES"
 	 */
 	else if (pg_strcasecmp(prev3_wd, "INSERT") == 0 &&
 			 pg_strcasecmp(prev2_wd, "INTO") == 0)
 	{
 		static const char *const list_INSERT[] =
-		{"DEFAULT VALUES", "SELECT", "TABLE", "VALUES", NULL};
+		{"(", "DEFAULT VALUES", "SELECT", "TABLE", "VALUES", NULL};
 
 		COMPLETE_WITH_LIST(list_INSERT);
 	}
@@ -2056,6 +2225,7 @@ psql_completion(char *text, int start, int end)
 	else if (pg_strcasecmp(prev2_wd, "SET") == 0 &&
 			 pg_strcasecmp(prev4_wd, "UPDATE") != 0 &&
 			 pg_strcasecmp(prev_wd, "TABLESPACE") != 0 &&
+			 prev_wd[strlen(prev_wd) - 1] != ')' &&
 			 pg_strcasecmp(prev4_wd, "DOMAIN") != 0)
 		COMPLETE_WITH_CONST("TO");
 	/* Suggest possible variable values */
@@ -2775,17 +2945,21 @@ previous_word(int point, int skip)
 				end = -1,
 				inquotes = 0;
 	char	   *s;
+	const char *buf = rl_line_buffer;	/* alias */
+
+	/* first we look for a space or a parenthesis before the current word */
+	for (i = point - 1; i >= 0; i--)
+		if (strchr(WORD_BREAKS, buf[i]))
+			break;
+	point = i;
 
 	while (skip-- >= 0)
 	{
-		/* first we look for a space before the current word */
-		for (i = point; i >= 0; i--)
-			if (rl_line_buffer[i] == ' ')
-				break;
+		int		parentheses = 0;
 
 		/* now find the first non-space which then constitutes the end */
-		for (; i >= 0; i--)
-			if (rl_line_buffer[i] != ' ')
+		for (i = point; i >= 0; i--)
+			if (buf[i] != ' ')
 			{
 				end = i;
 				break;
@@ -2801,52 +2975,37 @@ previous_word(int point, int skip)
 		/*
 		 * Otherwise we now look for the start. The start is either the last
 		 * character before any space going backwards from the end, or it's
-		 * simply character 0
+		 * simply character 0. We also handle open quotes and parentheses.
 		 */
 		for (start = end; start > 0; start--)
 		{
-			if (rl_line_buffer[start] == '"')
+			if (buf[start] == '"')
 				inquotes = !inquotes;
-			if ((rl_line_buffer[start - 1] == ' ') && inquotes == 0)
-				break;
+			if (inquotes == 0)
+			{
+				if (buf[start] == ')')
+					parentheses++;
+				else if (buf[start] == '(')
+				{
+					if (--parentheses <= 0)
+						break;
+				}
+				else if (parentheses == 0 &&
+						 strchr(WORD_BREAKS, buf[start - 1]))
+					break;
+			}
 		}
 
-		point = start;
+		point = start - 1;
 	}
 
 	/* make a copy */
 	s = pg_malloc(end - start + 2);
-	strlcpy(s, &rl_line_buffer[start], end - start + 2);
+	strlcpy(s, &buf[start], end - start + 2);
 
 	return s;
 }
 
-/* Find the parenthesis after the last word */
-
-
-static int
-find_open_parenthesis(int end)
-{
-	int			i = end - 1;
-
-	while ((rl_line_buffer[i] != ' ') && (i >= 0))
-	{
-		if (rl_line_buffer[i] == '(')
-			return 1;
-		i--;
-	}
-	while ((rl_line_buffer[i] == ' ') && (i >= 0))
-	{
-		i--;
-	}
-	if (rl_line_buffer[i] == '(')
-	{
-		return 1;
-	}
-	return 0;
-
-}
-
 #if 0
 
 /*