Portability fixes

Don't define crc32 if we are not linking with gzip


cmd-line-utils/libedit/libedit_term.h:
  Rename: cmd-line-utils/libedit/term.h -> cmd-line-utils/libedit/libedit_term.h
BitKeeper/etc/ignore:
  added scripts/make_win_src_distribution
client/connect_test.c:
  Removed wrong include file
  (my_global.h should never be included by an external client)
client/insert_test.c:
  Removed wrong include file
  (my_global.h should never be included by an external client)
client/select_test.c:
  Removed wrong include file
  (my_global.h should never be included by an external client)
cmd-line-utils/libedit/Makefile.am:
  Portability fixes (for HPUX11 and AIX)
cmd-line-utils/libedit/el.h:
  Portability fixes (for HPUX11 and AIX)
cmd-line-utils/libedit/key.h:
  Portability fixes (for HPUX11 and AIX)
cmd-line-utils/libedit/makelist:
  Portability fixes (for HPUX11 and AIX)
cmd-line-utils/libedit/read.c:
  Portability fixes (for HPUX11 and AIX)
cmd-line-utils/libedit/readline.c:
  Portability fixes (for HPUX11 and AIX)
cmd-line-utils/libedit/readline/readline.h:
  Systems that has sys/cdefs may not have __BEGIN_DECLS
cmd-line-utils/libedit/sig.c:
  sig_t is not portable
cmd-line-utils/libedit/sig.h:
  sig_t is not portable
cmd-line-utils/libedit/term.c:
  Portablity fixes
  Fixed core dump when using a terminal without arrow key definitions
heap/_check.c:
  Portability fix
heap/hp_hash.c:
  Portability fix
heap/hp_rkey.c:
  Portability fix
include/my_global.h:
  Portability fixes for HPUX11
libmysql/libmysql.c:
  Removed wrong cast
mysql-test/r/union.result:
  New union tests
mysql-test/t/union.test:
  New union tests
sql/gen_lex_hash.cc:
  Fixed portability bug.
sql/gstream.h:
  Portablity fix
sql/item_create.cc:
  Don't define crc32 if we are not linking with gzip
sql/item_create.h:
  Don't define crc32 if we are not linking with gzip
sql/item_func.cc:
  Don't define crc32 if we are not linking with gzip
sql/item_func.h:
  Don't define crc32 if we are not linking with gzip
sql/lex.h:
  Don't define crc32 if we are not linking with gzip
sql/sql_show.cc:
  Name can't be NULL

2 files changed, 50 insertions, 0 deletions

diff --git a/mysql-test/r/union.result b/mysql-test/r/union.result
index cf166f47f35..44d75e54771 100644
--- a/mysql-test/r/union.result
+++ b/mysql-test/r/union.result
@@ -230,3 +230,36 @@ id_master	id	text1	text2
 1	3	NULL	bar3
 1	4	foo4	bar4
 drop table if exists t1,t2;
+create table t1 (a int not null primary key auto_increment, b int, key(b));
+create table t2 (a int not null primary key auto_increment, b int);
+insert into t1 (b) values (1),(2),(2),(3);
+insert into t2 (b) values (10),(11),(12),(13);
+explain (select * from t1 where a=1) union (select * from t2 where a=1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	const	PRIMARY	PRIMARY	4	const	1	
+2	UNION	t2	const	PRIMARY	PRIMARY	4	const	1	
+(select * from t1 where a=5) union (select * from t2 where a=1);
+a	b
+1	10
+(select * from t1 where a=5 and a=6) union (select * from t2 where a=1);
+a	b
+1	10
+(select t1.a,t1.b from t1,t2 where t1.a=5) union (select * from t2 where a=1);
+a	b
+1	10
+(select * from t1 where a=1) union (select t1.a,t2.a from t1,t2 where t1.a=t2.a);
+a	b
+1	1
+2	2
+3	3
+4	4
+explain (select * from t1 where a=1 and b=10) union (select t1.a,t2.a from t1,t2 where t1.a=t2.a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+2	UNION	t1	index	PRIMARY	PRIMARY	4	NULL	4	Using index
+2	UNION	t2	index	PRIMARY	PRIMARY	4	NULL	4	Using where; Using index
+explain (select * from t1 where a=1) union (select * from t1 where b=1);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t1	const	PRIMARY	PRIMARY	4	const	1	
+2	UNION	t1	ref	b	b	5	const	1	Using where
+drop table t1,t2;
diff --git a/mysql-test/t/union.test b/mysql-test/t/union.test
index af2dd154974..b73d9b5fdfc 100644
--- a/mysql-test/t/union.test
+++ b/mysql-test/t/union.test
@@ -124,3 +124,20 @@ INSERT INTO t2 (id, id_master, text1, text2) VALUES("4", "1",
 SELECT 1 AS id_master, 1 AS id, NULL AS text1, 'ABCDE' AS text2 UNION SELECT id_master, t2.id, text1, text2 FROM t1 LEFT JOIN t2 ON t1.id = t2.id_master;
 SELECT 1 AS id_master, 1 AS id, 'ABCDE' AS text1, 'ABCDE' AS text2 UNION SELECT id_master, t2.id, text1, text2 FROM t1 LEFT JOIN t2 ON t1.id = t2.id_master;
 drop table if exists t1,t2;
+
+#
+# Test of bug when using the same table multiple times
+#
+create table t1 (a int not null primary key auto_increment, b int, key(b));
+create table t2 (a int not null primary key auto_increment, b int);
+insert into t1 (b) values (1),(2),(2),(3);
+insert into t2 (b) values (10),(11),(12),(13);
+
+explain (select * from t1 where a=1) union (select * from t2 where a=1);
+(select * from t1 where a=5) union (select * from t2 where a=1);
+(select * from t1 where a=5 and a=6) union (select * from t2 where a=1);
+(select t1.a,t1.b from t1,t2 where t1.a=5) union (select * from t2 where a=1);
+(select * from t1 where a=1) union (select t1.a,t2.a from t1,t2 where t1.a=t2.a);
+explain (select * from t1 where a=1 and b=10) union (select t1.a,t2.a from t1,t2 where t1.a=t2.a);
+explain (select * from t1 where a=1) union (select * from t1 where b=1);
+drop table t1,t2;