Manual merge with mysql-5.0-bugteam

40 files changed, 220 insertions, 102 deletions

diff --git a/mysql-test/include/have_archive.inc b/mysql-test/include/have_archive.inc
index 262f66076a8..75460316322 100644
--- a/mysql-test/include/have_archive.inc
+++ b/mysql-test/include/have_archive.inc
@@ -1,4 +1,4 @@
 --require r/have_archive.require
 --disable_query_log
-show variables like "have_archive";
+show variables like 'have_archive';
 --enable_query_log
diff --git a/mysql-test/include/have_bdb.inc b/mysql-test/include/have_bdb.inc
index 3f7377e7515..c2f29e0d286 100644
--- a/mysql-test/include/have_bdb.inc
+++ b/mysql-test/include/have_bdb.inc
@@ -1,4 +1,4 @@
 -- require r/have_bdb.require
 disable_query_log;
-show variables like "have_bdb";
+show variables like 'have_bdb';
 enable_query_log;
diff --git a/mysql-test/include/have_big5.inc b/mysql-test/include/have_big5.inc
index 790e8085e1a..dad4a0a8eeb 100644
--- a/mysql-test/include/have_big5.inc
+++ b/mysql-test/include/have_big5.inc
@@ -1,4 +1,4 @@
 -- require r/have_big5.require
 disable_query_log;
-show collation like "big5_chinese_ci";
+show collation like 'big5_chinese_ci';
 enable_query_log;
diff --git a/mysql-test/include/have_blackhole.inc b/mysql-test/include/have_blackhole.inc
index c2b6ea18830..d13c9fda3f5 100644
--- a/mysql-test/include/have_blackhole.inc
+++ b/mysql-test/include/have_blackhole.inc
@@ -1,4 +1,4 @@
 -- require r/have_blackhole.require
 disable_query_log;
-show variables like "have_blackhole_engine";
+show variables like 'have_blackhole_engine';
 enable_query_log;
diff --git a/mysql-test/include/have_case_sensitive_file_system.inc b/mysql-test/include/have_case_sensitive_file_system.inc
index 730af975497..7bb1bef93fd 100644
--- a/mysql-test/include/have_case_sensitive_file_system.inc
+++ b/mysql-test/include/have_case_sensitive_file_system.inc
@@ -1,4 +1,4 @@
 --require r/case_sensitive_file_system.require
 --disable_query_log
-show variables like "lower_case_file_system";
+show variables like 'lower_case_file_system';
 --enable_query_log
diff --git a/mysql-test/include/have_compress.inc b/mysql-test/include/have_compress.inc
index c042cd7452a..150c7f3448d 100644
--- a/mysql-test/include/have_compress.inc
+++ b/mysql-test/include/have_compress.inc
@@ -1,4 +1,4 @@
 -- require r/have_compress.require
 disable_query_log;
-show variables like "have_compress";
+show variables like 'have_compress';
 enable_query_log;
diff --git a/mysql-test/include/have_cp1250_ch.inc b/mysql-test/include/have_cp1250_ch.inc
index eec5d69fbd6..426fa658597 100644
--- a/mysql-test/include/have_cp1250_ch.inc
+++ b/mysql-test/include/have_cp1250_ch.inc
@@ -1,4 +1,4 @@
 -- require r/have_cp1250_ch.require
 disable_query_log;
-show collation like "cp1250_czech_cs";
+show collation like 'cp1250_czech_cs';
 enable_query_log;
diff --git a/mysql-test/include/have_cp932.inc b/mysql-test/include/have_cp932.inc
index b500dac0bbe..ecad979c02a 100644
--- a/mysql-test/include/have_cp932.inc
+++ b/mysql-test/include/have_cp932.inc
@@ -1,4 +1,4 @@
 -- require r/have_cp932.require
 disable_query_log;
-show collation like "cp932_japanese_ci";
+show collation like 'cp932_japanese_ci';
 enable_query_log;
diff --git a/mysql-test/include/have_crypt.inc b/mysql-test/include/have_crypt.inc
index fe1f974bffd..cbf0a7ac876 100644
--- a/mysql-test/include/have_crypt.inc
+++ b/mysql-test/include/have_crypt.inc
@@ -1,4 +1,4 @@
 -- require r/have_crypt.require
 disable_query_log;
-show variables like "have_crypt";
+show variables like 'have_crypt';
 enable_query_log;
diff --git a/mysql-test/include/have_csv.inc b/mysql-test/include/have_csv.inc
index d28199831b8..12e69962486 100644
--- a/mysql-test/include/have_csv.inc
+++ b/mysql-test/include/have_csv.inc
@@ -1,4 +1,4 @@
 -- require r/have_csv.require
 disable_query_log;
-show variables like "have_csv";
+show variables like 'have_csv';
 enable_query_log;
diff --git a/mysql-test/include/have_eucjpms.inc b/mysql-test/include/have_eucjpms.inc
index a5e1a5ac547..6d96eefcc31 100644
--- a/mysql-test/include/have_eucjpms.inc
+++ b/mysql-test/include/have_eucjpms.inc
@@ -1,4 +1,4 @@
 -- require r/have_eucjpms.require
 disable_query_log;
-show collation like "eucjpms_japanese_ci";
+show collation like 'eucjpms_japanese_ci';
 enable_query_log;
diff --git a/mysql-test/include/have_euckr.inc b/mysql-test/include/have_euckr.inc
index af794aafc04..4b4e870cf47 100644
--- a/mysql-test/include/have_euckr.inc
+++ b/mysql-test/include/have_euckr.inc
@@ -1,4 +1,4 @@
 -- require r/have_euckr.require
 disable_query_log;
-show collation like "euckr_korean_ci";
+show collation like 'euckr_korean_ci';
 enable_query_log;
diff --git a/mysql-test/include/have_exampledb.inc b/mysql-test/include/have_exampledb.inc
index 7ddd15c48b3..b8f9a24463e 100644
--- a/mysql-test/include/have_exampledb.inc
+++ b/mysql-test/include/have_exampledb.inc
@@ -1,4 +1,4 @@
 -- require r/have_exampledb.require
 disable_query_log;
-show variables like "have_example_engine";
+show variables like 'have_example_engine';
 enable_query_log;
diff --git a/mysql-test/include/have_federated_db.inc b/mysql-test/include/have_federated_db.inc
index e4cf1366fda..4745534780d 100644
--- a/mysql-test/include/have_federated_db.inc
+++ b/mysql-test/include/have_federated_db.inc
@@ -1,4 +1,4 @@
 -- require r/have_federated_db.require
 disable_query_log;
-show variables like "have_federated_engine";
+show variables like 'have_federated_engine';
 enable_query_log;
diff --git a/mysql-test/include/have_gb2312.inc b/mysql-test/include/have_gb2312.inc
index 4328bc67639..27591c01b6c 100644
--- a/mysql-test/include/have_gb2312.inc
+++ b/mysql-test/include/have_gb2312.inc
@@ -1,4 +1,4 @@
 -- require r/have_gb2312.require
 disable_query_log;
-show collation like "gb2312_chinese_ci";
+show collation like 'gb2312_chinese_ci';
 enable_query_log;
diff --git a/mysql-test/include/have_gbk.inc b/mysql-test/include/have_gbk.inc
index 55805da0495..72252d6b00d 100644
--- a/mysql-test/include/have_gbk.inc
+++ b/mysql-test/include/have_gbk.inc
@@ -1,4 +1,4 @@
 -- require r/have_gbk.require
 disable_query_log;
-show collation like "gbk_chinese_ci";
+show collation like 'gbk_chinese_ci';
 enable_query_log;
diff --git a/mysql-test/include/have_geometry.inc b/mysql-test/include/have_geometry.inc
index f0ec22af172..f1836469017 100644
--- a/mysql-test/include/have_geometry.inc
+++ b/mysql-test/include/have_geometry.inc
@@ -1,4 +1,4 @@
 --require r/have_geometry.require
 --disable_query_log
-show variables like "have_geometry";
+show variables like 'have_geometry';
 --enable_query_log
diff --git a/mysql-test/include/have_innodb.inc b/mysql-test/include/have_innodb.inc
index 4f83d378cbc..4142b84813b 100644
--- a/mysql-test/include/have_innodb.inc
+++ b/mysql-test/include/have_innodb.inc
@@ -1,4 +1,4 @@
 -- require r/have_innodb.require
 disable_query_log;
-show variables like "have_innodb";
+show variables like 'have_innodb';
 enable_query_log;
diff --git a/mysql-test/include/have_latin2_ch.inc b/mysql-test/include/have_latin2_ch.inc
index 9d3ee6b341c..215715a6aaf 100644
--- a/mysql-test/include/have_latin2_ch.inc
+++ b/mysql-test/include/have_latin2_ch.inc
@@ -1,4 +1,4 @@
 -- require r/have_latin2_ch.require
 disable_query_log;
-show collation like "latin2_czech_cs";
+show collation like 'latin2_czech_cs';
 enable_query_log;
diff --git a/mysql-test/include/have_log_bin.inc b/mysql-test/include/have_log_bin.inc
index 11530dc953e..5bcdb30b3e0 100644
--- a/mysql-test/include/have_log_bin.inc
+++ b/mysql-test/include/have_log_bin.inc
@@ -1,4 +1,4 @@
 -- require r/have_log_bin.require
 disable_query_log;
-show variables like "log_bin";
+show variables like 'log_bin';
 enable_query_log;
diff --git a/mysql-test/include/have_lowercase0.inc b/mysql-test/include/have_lowercase0.inc
index 8d3ae02f61e..6192acb7b01 100644
--- a/mysql-test/include/have_lowercase0.inc
+++ b/mysql-test/include/have_lowercase0.inc
@@ -1,4 +1,4 @@
 --require r/lowercase0.require
 --disable_query_log
-show variables like "lower_case_%";
+show variables like 'lower_case_%';
 --enable_query_log
diff --git a/mysql-test/include/have_multi_ndb.inc b/mysql-test/include/have_multi_ndb.inc
index 45a551274f7..7f922d85ff2 100644
--- a/mysql-test/include/have_multi_ndb.inc
+++ b/mysql-test/include/have_multi_ndb.inc
@@ -10,7 +10,7 @@ drop table if exists t1, t2;
 --enable_warnings
 flush tables;
 --require r/have_ndb.require
-show variables like "have_ndbcluster";
+show variables like 'have_ndbcluster';
 enable_query_log;
 
 # Check that server2 has NDB support
@@ -21,7 +21,7 @@ drop table if exists t1, t2;
 --enable_warnings
 flush tables;
 --require r/have_ndb.require
-show variables like "have_ndbcluster";
+show variables like 'have_ndbcluster';
 enable_query_log;
 
 # Set the default connection to 'server1'
diff --git a/mysql-test/include/have_ndb.inc b/mysql-test/include/have_ndb.inc
index 721d79392b7..691adc12231 100644
--- a/mysql-test/include/have_ndb.inc
+++ b/mysql-test/include/have_ndb.inc
@@ -1,7 +1,7 @@
 # Check that server is compiled and started with support for NDB
 -- require r/have_ndb.require
 disable_query_log;
-show variables like "have_ndbcluster";
+show variables like 'have_ndbcluster';
 enable_query_log;
 
 # Check that NDB is installed and known to be working
diff --git a/mysql-test/include/have_query_cache.inc b/mysql-test/include/have_query_cache.inc
index 39549157849..647f8598ae6 100644
--- a/mysql-test/include/have_query_cache.inc
+++ b/mysql-test/include/have_query_cache.inc
@@ -3,5 +3,5 @@
 # of query cache hits
 -- disable_ps_protocol
 disable_query_log;
-show variables like "have_query_cache";
+show variables like 'have_query_cache';
 enable_query_log;
diff --git a/mysql-test/include/have_sjis.inc b/mysql-test/include/have_sjis.inc
index 0d580a3a232..ac6531ca868 100644
--- a/mysql-test/include/have_sjis.inc
+++ b/mysql-test/include/have_sjis.inc
@@ -1,4 +1,4 @@
 -- require r/have_sjis.require
 disable_query_log;
-show collation like "sjis_japanese_ci";
+show collation like 'sjis_japanese_ci';
 enable_query_log;
diff --git a/mysql-test/include/have_ssl.inc b/mysql-test/include/have_ssl.inc
index fab57d630e5..6f2d5587a75 100644
--- a/mysql-test/include/have_ssl.inc
+++ b/mysql-test/include/have_ssl.inc
@@ -1,4 +1,4 @@
 -- require r/have_ssl.require
 disable_query_log;
-show variables like "have_ssl";
+show variables like 'have_ssl';
 enable_query_log;
diff --git a/mysql-test/include/have_tis620.inc b/mysql-test/include/have_tis620.inc
index c1e775681b0..ad5ba9dea69 100644
--- a/mysql-test/include/have_tis620.inc
+++ b/mysql-test/include/have_tis620.inc
@@ -1,4 +1,4 @@
 -- require r/have_tis620.require
 disable_query_log;
-show collation like "tis620_thai_ci";
+show collation like 'tis620_thai_ci';
 enable_query_log;
diff --git a/mysql-test/include/have_ucs2.inc b/mysql-test/include/have_ucs2.inc
index 92ec9b5fb44..324ed52dd02 100644
--- a/mysql-test/include/have_ucs2.inc
+++ b/mysql-test/include/have_ucs2.inc
@@ -1,4 +1,4 @@
 -- require r/have_ucs2.require
 disable_query_log;
-show collation like "ucs2_general_ci";
+show collation like 'ucs2_general_ci';
 enable_query_log;
diff --git a/mysql-test/include/have_udf.inc b/mysql-test/include/have_udf.inc
index 42b9942f74d..154dccf2270 100644
--- a/mysql-test/include/have_udf.inc
+++ b/mysql-test/include/have_udf.inc
@@ -4,7 +4,7 @@
 #
 --require r/have_udf.require
 disable_query_log;
-show variables like "have_dynamic_loading";
+show variables like 'have_dynamic_loading';
 enable_query_log;
 
 #
diff --git a/mysql-test/include/have_ujis.inc b/mysql-test/include/have_ujis.inc
index ecceb7a8408..e4b2f50cf93 100644
--- a/mysql-test/include/have_ujis.inc
+++ b/mysql-test/include/have_ujis.inc
@@ -1,4 +1,4 @@
 -- require r/have_ujis.require
 disable_query_log;
-show collation like "ujis_japanese_ci";
+show collation like 'ujis_japanese_ci';
 enable_query_log;
diff --git a/mysql-test/r/comments.result b/mysql-test/r/comments.result
index 1040c3fc8e9..b9d0028dc7c 100644
--- a/mysql-test/r/comments.result
+++ b/mysql-test/r/comments.result
@@ -35,7 +35,7 @@ ERROR 42000: You have an error in your SQL syntax; check the manual that corresp
 prepare bar from "DELETE FROM table_28779 WHERE a = 7 OR 1=1/*! AND 2=2;";
 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
 prepare bar from "DELETE FROM table_28779 WHERE a = 7 OR 1=1/*! AND 2=2;*";
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ';*' at line 1
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '*' at line 1
 prepare bar from "DELETE FROM table_28779 WHERE a = 7 OR 1=1/*!98765' AND b = 'bar';";
 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '/*!98765' AND b = 'bar'' at line 1
 prepare bar from "DELETE FROM table_28779 WHERE a = 7 OR 1=1/*!98765' AND b = 'bar';*";
diff --git a/mysql-test/r/parser.result b/mysql-test/r/parser.result
new file mode 100644
index 00000000000..18391bd2a45
--- /dev/null
+++ b/mysql-test/r/parser.result
@@ -0,0 +1,68 @@
+DROP PROCEDURE IF EXISTS p26030;
+select "non terminated"$$
+non terminated
+non terminated
+select "terminated";$$
+terminated
+terminated
+select "non terminated, space"      $$
+non terminated, space
+non terminated, space
+select "terminated, space";      $$
+terminated, space
+terminated, space
+select "non terminated, comment" /* comment */$$
+non terminated, comment
+non terminated, comment
+select "terminated, comment"; /* comment */$$
+terminated, comment
+terminated, comment
+select "stmt 1";select "stmt 2 non terminated"$$
+stmt 1
+stmt 1
+stmt 2 non terminated
+stmt 2 non terminated
+select "stmt 1";select "stmt 2 terminated";$$
+stmt 1
+stmt 1
+stmt 2 terminated
+stmt 2 terminated
+select "stmt 1";select "stmt 2 non terminated, space"      $$
+stmt 1
+stmt 1
+stmt 2 non terminated, space
+stmt 2 non terminated, space
+select "stmt 1";select "stmt 2 terminated, space";      $$
+stmt 1
+stmt 1
+stmt 2 terminated, space
+stmt 2 terminated, space
+select "stmt 1";select "stmt 2 non terminated, comment" /* comment */$$
+stmt 1
+stmt 1
+stmt 2 non terminated, comment
+stmt 2 non terminated, comment
+select "stmt 1";select "stmt 2 terminated, comment"; /* comment */$$
+stmt 1
+stmt 1
+stmt 2 terminated, comment
+stmt 2 terminated, comment
+select "stmt 1";             select "space, stmt 2"$$
+stmt 1
+stmt 1
+space, stmt 2
+space, stmt 2
+select "stmt 1";/* comment */select "comment, stmt 2"$$
+stmt 1
+stmt 1
+comment, stmt 2
+comment, stmt 2
+DROP PROCEDURE IF EXISTS p26030; CREATE PROCEDURE p26030() BEGIN SELECT 1; END; CALL p26030()
+$$
+1
+1
+DROP PROCEDURE IF EXISTS p26030; CREATE PROCEDURE p26030() SELECT 1; CALL p26030()
+$$
+1
+1
+DROP PROCEDURE p26030;
diff --git a/mysql-test/r/ps.result b/mysql-test/r/ps.result
index 9aef58d5702..09deaf2f322 100644
--- a/mysql-test/r/ps.result
+++ b/mysql-test/r/ps.result
@@ -85,9 +85,9 @@ NULL
 NULL
 NULL
 prepare stmt6 from 'select 1; select2';
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '; select2' at line 1
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'select2' at line 1
 prepare stmt6 from 'insert into t1 values (5,"five"); select2';
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '; select2' at line 1
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'select2' at line 1
 explain prepare stmt6 from 'insert into t1 values (5,"five"); select2';
 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'from 'insert into t1 values (5,"five"); select2'' at line 1
 create table t2
diff --git a/mysql-test/suite/funcs_1/t/is_columns_myisam_embedded.test b/mysql-test/suite/funcs_1/t/is_columns_myisam_embedded.test
index 0d5f1a72cdb..3d0cca24474 100644
--- a/mysql-test/suite/funcs_1/t/is_columns_myisam_embedded.test
+++ b/mysql-test/suite/funcs_1/t/is_columns_myisam_embedded.test
@@ -10,11 +10,6 @@
 # 2008-06-06 mleich Create this this variant for the embedded server.
 #
 
-let $value= query_get_value(SHOW VARIABLES LIKE 'version_compile_os',Value,1);
-if (`SELECT '$value' LIKE 'apple-darwin%'`)
-{
-   skip Bug#37380 Test funcs_1.is_columns_myisam_embedded fails on OS X;
-}
 if (`SELECT VERSION() NOT LIKE '%embedded%'`)
 {
    --skip Test requires: embedded server
diff --git a/mysql-test/t/parser.test b/mysql-test/t/parser.test
new file mode 100644
index 00000000000..02fe98dc7b2
--- /dev/null
+++ b/mysql-test/t/parser.test
@@ -0,0 +1,59 @@
+#
+# This file contains tests covering the parser
+#
+
+#=============================================================================
+# LEXICAL PARSER (lex)
+#=============================================================================
+
+#
+# Maintainer: these tests are for the lexical parser, so every character,
+# even whitespace or comments, is significant here.
+#
+
+#
+# Bug#26030 (Parsing fails for stored routine w/multi-statement execution
+# enabled)
+#
+
+--disable_warnings
+DROP PROCEDURE IF EXISTS p26030;
+--enable_warnings
+
+delimiter $$;
+
+select "non terminated"$$
+select "terminated";$$
+select "non terminated, space"      $$
+select "terminated, space";      $$
+select "non terminated, comment" /* comment */$$
+select "terminated, comment"; /* comment */$$
+
+# Multi queries can not be used in --ps-protocol test mode
+--disable_ps_protocol
+
+select "stmt 1";select "stmt 2 non terminated"$$
+select "stmt 1";select "stmt 2 terminated";$$
+select "stmt 1";select "stmt 2 non terminated, space"      $$
+select "stmt 1";select "stmt 2 terminated, space";      $$
+select "stmt 1";select "stmt 2 non terminated, comment" /* comment */$$
+select "stmt 1";select "stmt 2 terminated, comment"; /* comment */$$
+
+select "stmt 1";             select "space, stmt 2"$$
+select "stmt 1";/* comment */select "comment, stmt 2"$$
+
+DROP PROCEDURE IF EXISTS p26030; CREATE PROCEDURE p26030() BEGIN SELECT 1; END; CALL p26030()
+$$
+
+DROP PROCEDURE IF EXISTS p26030; CREATE PROCEDURE p26030() SELECT 1; CALL p26030()
+$$
+
+--enable_ps_protocol
+
+delimiter ;$$
+DROP PROCEDURE p26030;
+
+#============================================================================r
+# SYNTACTIC PARSER (bison)
+#=============================================================================
+
diff --git a/mysys/default.c b/mysys/default.c
index eb7721acaed..bf32261129b 100644
--- a/mysys/default.c
+++ b/mysys/default.c
@@ -1015,10 +1015,12 @@ static uint my_get_system_windows_directory(char *buffer, uint size)
 
 static const char *my_get_module_parent(char *buf, size_t size)
 {
+  char *last= NULL;
+  char *end;
   if (!GetModuleFileName(NULL, buf, size))
     return NULL;
+  end= strend(buf);
 
-  char *last= NULL, *end= strend(buf);
   /*
     Look for the second-to-last \ in the filename, but hang on
     to a pointer after the last \ in case we're in the root of
diff --git a/sql/sp_head.h b/sql/sp_head.h
index 11ff7160c03..91f465a4e2a 100644
--- a/sql/sp_head.h
+++ b/sql/sp_head.h
@@ -117,7 +117,6 @@ public:
   create_field m_return_field_def; /* This is used for FUNCTIONs only. */
 
   const char *m_tmp_query;	// Temporary pointer to sub query string
-  uint m_old_cmq;		// Old CLIENT_MULTI_QUERIES value
   st_sp_chistics *m_chistics;
   ulong m_sql_mode;		// For SHOW CREATE and execution
   LEX_STRING m_qname;		// db.name
diff --git a/sql/sql_lex.cc b/sql/sql_lex.cc
index 6bfcd982b04..a1bfc3edc6c 100644
--- a/sql/sql_lex.cc
+++ b/sql/sql_lex.cc
@@ -1010,21 +1010,8 @@ int MYSQLlex(void *arg, void *yythd)
       yySkip();
       return (SET_VAR);
     case MY_LEX_SEMICOLON:			// optional line terminator
-      if (yyPeek())
-      {
-        if ((thd->client_capabilities & CLIENT_MULTI_STATEMENTS) && 
-            !lip->stmt_prepare_mode)
-        {
-	  lex->safe_to_cache_query= 0;
-          lip->found_semicolon= lip->ptr;
-          thd->server_status|= SERVER_MORE_RESULTS_EXISTS;
-          lip->next_state=     MY_LEX_END;
-          return (END_OF_INPUT);
-        }
-        state= MY_LEX_CHAR;		// Return ';'
-	break;
-      }
-      /* fall true */
+      state= MY_LEX_CHAR;               // Return ';'
+      break;
     case MY_LEX_EOL:
       if (lip->ptr >= lip->end_of_query)
       {
@@ -1039,7 +1026,7 @@ int MYSQLlex(void *arg, void *yythd)
     case MY_LEX_END:
       lip->next_state=MY_LEX_END;
       return(0);			// We found end of input last time
-      
+
       /* Actually real shouldn't start with . but allow them anyhow */
     case MY_LEX_REAL_OR_POINT:
       if (my_isdigit(cs,yyPeek()))
diff --git a/sql/sql_parse.cc b/sql/sql_parse.cc
index 98e04e45bdd..62a5a79a833 100644
--- a/sql/sql_parse.cc
+++ b/sql/sql_parse.cc
@@ -6169,6 +6169,11 @@ void mysql_parse(THD *thd, const char *inBuf, uint length,
               (thd->query_length= (ulong)(lip.found_semicolon - thd->query)))
             thd->query_length--;
           /* Actually execute the query */
+          if (*found_semicolon)
+          {
+            lex->safe_to_cache_query= 0;
+            thd->server_status|= SERVER_MORE_RESULTS_EXISTS;
+          }
           lex->set_trg_event_type_for_tables();
           mysql_execute_command(thd);
           query_cache_end_of_result(thd);
diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy
index ffc84bde9c1..090585392a0 100644
--- a/sql/sql_yacc.yy
+++ b/sql/sql_yacc.yy
@@ -1203,21 +1203,54 @@ END_OF_INPUT
 
 
 query:
-	END_OF_INPUT
-	{
-	   THD *thd= YYTHD;
-	   if (!thd->bootstrap &&
-	      (!(thd->lex->select_lex.options & OPTION_FOUND_COMMENT)))
-	   {
-	     my_message(ER_EMPTY_QUERY, ER(ER_EMPTY_QUERY), MYF(0));
-	     MYSQL_YYABORT;
-	   }
-	   else
-	   {
-	     thd->lex->sql_command= SQLCOM_EMPTY_QUERY;
-	   }
-	}
-	| verb_clause END_OF_INPUT {};
+          END_OF_INPUT
+          {
+            THD *thd= YYTHD;
+            if (!thd->bootstrap &&
+              (!(thd->lex->select_lex.options & OPTION_FOUND_COMMENT)))
+            {
+              my_message(ER_EMPTY_QUERY, ER(ER_EMPTY_QUERY), MYF(0));
+              MYSQL_YYABORT;
+            }
+            thd->lex->sql_command= SQLCOM_EMPTY_QUERY;
+            thd->m_lip->found_semicolon= NULL;
+          }
+        | verb_clause
+          {
+            Lex_input_stream *lip = YYTHD->m_lip;
+
+            if ((YYTHD->client_capabilities & CLIENT_MULTI_QUERIES) &&
+                ! lip->stmt_prepare_mode &&
+                ! (lip->ptr >= lip->end_of_query))
+            {
+              /*
+                We found a well formed query, and multi queries are allowed:
+                - force the parser to stop after the ';'
+                - mark the start of the next query for the next invocation
+                  of the parser.
+              */
+              lip->next_state= MY_LEX_END;
+              lip->found_semicolon= lip->ptr;
+            }
+            else
+            {
+              /* Single query, terminated. */
+              lip->found_semicolon= NULL;
+            }
+          }
+          ';'
+          opt_end_of_input
+        | verb_clause END_OF_INPUT
+          {
+            /* Single query, not terminated. */
+            YYTHD->m_lip->found_semicolon= NULL;
+          }
+        ;
+
+opt_end_of_input:
+          /* empty */
+        | END_OF_INPUT
+        ;
 
 verb_clause:
 	  statement
@@ -9867,13 +9900,6 @@ trigger_tail:
 
 	  lex->sphead= sp;
 	  lex->spname= $3;
-	  /*
-	    We have to turn of CLIENT_MULTI_QUERIES while parsing a
-	    stored procedure, otherwise yylex will chop it into pieces
-	    at each ';'.
-	  */
-	  sp->m_old_cmq= thd->client_capabilities & CLIENT_MULTI_QUERIES;
-	  thd->client_capabilities &= ~CLIENT_MULTI_QUERIES;
 	  
 	  bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
 	  lex->sphead->m_chistics= &lex->sp_chistics;
@@ -9888,9 +9914,6 @@ trigger_tail:
 	  
 	  lex->sql_command= SQLCOM_CREATE_TRIGGER;
 	  sp->init_strings(YYTHD, lex);
-	  /* Restore flag if it was cleared above */
-	  if (sp->m_old_cmq)
-	    YYTHD->client_capabilities |= CLIENT_MULTI_QUERIES;
 	  sp->restore_thd_mem_root(YYTHD);
 	
 	  if (sp->is_not_allowed_in_function("trigger"))
@@ -9968,13 +9991,6 @@ sf_tail:
 
 	    sp->m_type= TYPE_ENUM_FUNCTION;
 	    lex->sphead= sp;
-	    /*
-	     * We have to turn of CLIENT_MULTI_QUERIES while parsing a
-	     * stored procedure, otherwise yylex will chop it into pieces
-	     * at each ';'.
-	     */
-	    sp->m_old_cmq= thd->client_capabilities & CLIENT_MULTI_QUERIES;
-	    thd->client_capabilities &= ~CLIENT_MULTI_QUERIES;
 	    lex->sphead->m_param_begin= lip->tok_start+1;
 	  }
           sp_fdparam_list /* $6 */
@@ -10030,9 +10046,6 @@ sf_tail:
               my_error(ER_SP_NORETURN, MYF(0), sp->m_qname.str);
               MYSQL_YYABORT;
             }
-	    /* Restore flag if it was cleared above */
-	    if (sp->m_old_cmq)
-	      YYTHD->client_capabilities |= CLIENT_MULTI_QUERIES;
 	    sp->restore_thd_mem_root(YYTHD);
 	  }
 	;
@@ -10062,13 +10075,6 @@ sp_tail:
           sp->init_sp_name(YYTHD, $3);
 
 	  lex->sphead= sp;
-	  /*
-	   * We have to turn of CLIENT_MULTI_QUERIES while parsing a
-	   * stored procedure, otherwise yylex will chop it into pieces
-	   * at each ';'.
-	   */
-	  sp->m_old_cmq= YYTHD->client_capabilities & CLIENT_MULTI_QUERIES;
-	  YYTHD->client_capabilities &= (~CLIENT_MULTI_QUERIES);
 	}
         '('
 	{
@@ -10104,9 +10110,6 @@ sp_tail:
 
 	  sp->init_strings(YYTHD, lex);
 	  lex->sql_command= SQLCOM_CREATE_PROCEDURE;
-	  /* Restore flag if it was cleared above */
-	  if (sp->m_old_cmq)
-	    YYTHD->client_capabilities |= CLIENT_MULTI_QUERIES;
 	  sp->restore_thd_mem_root(YYTHD);
 	}
 	;