mysqldump fix for invisible column

Actually there are 2 issues in the case of invisible columns 1st `select fields from t1` will have more fields then `select * from t1`. So instead of `select * from t1` we are using `select a,b,invisible from t1` these fields are supplied from `select fields from t1`. 2nd We are using --complete-insert when we detect that this table is using invisible columns.
MariaDB · Dec 14, 2017 · 0bc3c0f · 0bc3c0f
1 parent c90db2c
commit 0bc3c0f
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Showing 5 changed files with 300 additions and 68 deletions.
diff --git a/client/mysqldump.c b/client/mysqldump.c
@@ -115,10 +115,11 @@ static my_bool  verbose= 0, opt_no_create_info= 0, opt_no_data= 0, opt_no_data_m
                 opt_events= 0, opt_comments_used= 0,
                 opt_alltspcs=0, opt_notspcs= 0, opt_logging,
                 opt_drop_trigger= 0 ;
-static my_bool insert_pat_inited= 0, debug_info_flag= 0, debug_check_flag= 0;
+static my_bool insert_pat_inited= 0, debug_info_flag= 0, debug_check_flag= 0,
+               select_field_names_inited= 0;
 static ulong opt_max_allowed_packet, opt_net_buffer_length;
 static MYSQL mysql_connection,*mysql=0;
-static DYNAMIC_STRING insert_pat;
+static DYNAMIC_STRING insert_pat, select_field_names;
 static char  *opt_password=0,*current_user=0,
              *current_host=0,*path=0,*fields_terminated=0,
              *lines_terminated=0, *enclosed=0, *opt_enclosed=0, *escaped=0,
@@ -1641,6 +1642,7 @@ static void free_resources()
   dynstr_free(&extended_row);
   dynstr_free(&dynamic_where);
   dynstr_free(&insert_pat);
+  dynstr_free(&select_field_names);
   if (defaults_argv)
     free_defaults(defaults_argv);
   mysql_library_end();
@@ -2735,7 +2737,13 @@ static uint get_table_structure(char *table, char *db, char *table_type,
     else
       dynstr_set_checked(&insert_pat, "");
   }
-
+  if (!select_field_names_inited)
+  {
+    select_field_names_inited= 1;
+    init_dynamic_string_checked(&select_field_names, "", 1024, 1024);
+  }
+  else
+    dynstr_set_checked(&select_field_names, "");
   insert_option= ((delayed && opt_ignore) ? " DELAYED IGNORE " :
                   delayed ? " DELAYED " : opt_ignore ? " IGNORE " : "");
 
@@ -2971,6 +2979,19 @@ static uint get_table_structure(char *table, char *db, char *table_type,
       DBUG_RETURN(0);
     }
 
+    while ((row= mysql_fetch_row(result)))
+    {
+      if (strlen(row[SHOW_EXTRA]) && strstr(row[SHOW_EXTRA],"INVISIBLE"))
+        complete_insert= 1;
+      if (init)
+      {
+        dynstr_append_checked(&select_field_names, ", ");
+      }
+      init=1;
+      dynstr_append_checked(&select_field_names,
+              quote_name(row[SHOW_FIELDNAME], name_buff, 0));
+    }
+    init=0;
     /*
       If write_data is true, then we build up insert statements for
       the table's data. Note: in subsequent lines of code, this test
@@ -2998,19 +3019,8 @@ static uint get_table_structure(char *table, char *db, char *table_type,
       }
     }
 
-    while ((row= mysql_fetch_row(result)))
-    {
-      if (complete_insert)
-      {
-        if (init)
-        {
-          dynstr_append_checked(&insert_pat, ", ");
-        }
-        init=1;
-        dynstr_append_checked(&insert_pat,
-                      quote_name(row[SHOW_FIELDNAME], name_buff, 0));
-      }
-    }
+    if (complete_insert)
+      dynstr_append_checked(&insert_pat, select_field_names.str);
     num_fields= mysql_num_rows(result);
     mysql_free_result(result);
   }
@@ -3068,6 +3078,21 @@ static uint get_table_structure(char *table, char *db, char *table_type,
       }
     }
 
+    while ((row= mysql_fetch_row(result)))
+    {
+      if (strlen(row[SHOW_EXTRA]) && strstr(row[SHOW_EXTRA],"INVISIBLE"))
+        complete_insert= 1;
+      if (init)
+      {
+        dynstr_append_checked(&select_field_names, ", ");
+      }
+      dynstr_append_checked(&select_field_names,
+              quote_name(row[SHOW_FIELDNAME], name_buff, 0));
+      init=1;
+    }
+    init=0;
+    mysql_data_seek(result, 0);
+
     while ((row= mysql_fetch_row(result)))
     {
       ulong *lengths= mysql_fetch_lengths(result);
@@ -3708,7 +3733,9 @@ static void dump_table(char *table, char *db)
 
     /* now build the query string */
 
-    dynstr_append_checked(&query_string, "SELECT /*!40001 SQL_NO_CACHE */ * INTO OUTFILE '");
+    dynstr_append_checked(&query_string, "SELECT /*!40001 SQL_NO_CACHE */ ");
+    dynstr_append_checked(&query_string, select_field_names.str);
+    dynstr_append_checked(&query_string, " INTO OUTFILE '");
     dynstr_append_checked(&query_string, filename);
     dynstr_append_checked(&query_string, "'");
 
@@ -3757,7 +3784,9 @@ static void dump_table(char *table, char *db)
                   "\n--\n-- Dumping data for table %s\n--\n",
                   fix_for_comment(result_table));
 
-    dynstr_append_checked(&query_string, "SELECT /*!40001 SQL_NO_CACHE */ * FROM ");
+    dynstr_append_checked(&query_string, "SELECT /*!40001 SQL_NO_CACHE */ ");
+    dynstr_append_checked(&query_string, select_field_names.str);
+    dynstr_append_checked(&query_string, " FROM ");
     dynstr_append_checked(&query_string, result_table);
 
     if (where)

diff --git a/mysql-test/r/mysqldump.result b/mysql-test/r/mysqldump.result
@@ -1917,7 +1917,7 @@ drop table t1, t2, t3;
 # Bug#21288 mysqldump segmentation fault when using --where
 #
 create table t1 (a int);
-mysqldump: Couldn't execute 'SELECT /*!40001 SQL_NO_CACHE */ * FROM `t1` WHERE xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx': You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' at line 1 (1064)
+mysqldump: Couldn't execute 'SELECT /*!40001 SQL_NO_CACHE */ `a` FROM `t1` WHERE xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx': You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' at line 1 (1064)
 mysqldump: Got error: 1064: "You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' at line 1" when retrieving data from server
 
 /*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
@@ -5646,3 +5646,183 @@ DELIMITER ;
 /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
 
 DROP TABLE t1;
+#
+# Test for Invisible columns
+#
+create database d;
+use d;
+# Invisble field table
+create table t1(a int , b int invisible);
+insert into t1 values(1);
+insert into t1(a,b) values(1,2);
+# not invisible field table --complete-insert wont be used
+create table t2(a int , b int);
+insert into t2(a,b) values(1,2);
+insert into t2(a,b) values(1,2);
+# Invisble field table
+create table t3(invisible int , `a  b c & $!@#$%^&*( )` int invisible default 4, `ds=~!@ \# $% ^ & * ( ) _ - = +` int invisible default 5);
+insert into t3 values(1);
+insert into t3 values(5);
+insert into t3 values(2);
+insert into t3(`invisible`,  `a  b c & $!@#$%^&*( )`, `ds=~!@ \# $% ^ & * ( ) _ - = +` ) values(1,2,3);
+CREATE TABLE t4(ËÏÌÏÎËÁ1 INT);
+insert into t4 values(1);
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `t1` (
+  `a` int(11) DEFAULT NULL,
+  `b` int(11) INVISIBLE DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+INSERT INTO `t1` (`a`, `b`) VALUES (1,NULL),(1,2);
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `t2` (
+  `a` int(11) DEFAULT NULL,
+  `b` int(11) DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+INSERT INTO `t2` VALUES (1,2),(1,2);
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `t3` (
+  `invisible` int(11) DEFAULT NULL,
+  `a  b c & $!@#$%^&*( )` int(11) INVISIBLE DEFAULT 4,
+  `ds=~!@ \# $% ^ & * ( ) _ - = +` int(11) INVISIBLE DEFAULT 5
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+INSERT INTO `t3` (`invisible`, `a  b c & $!@#$%^&*( )`, `ds=~!@ \# $% ^ & * ( ) _ - = +`) VALUES (1,4,5),(5,4,5),(2,4,5),(1,2,3);
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `t4` (
+  `ËÏÌÏÎËÁ1` int(11) DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+INSERT INTO `t4` VALUES (1);
+#Check side effect on --complete insert
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `t1` (
+  `a` int(11) DEFAULT NULL,
+  `b` int(11) INVISIBLE DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+INSERT INTO `t1` (`a`, `b`) VALUES (1,NULL),(1,2);
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `t2` (
+  `a` int(11) DEFAULT NULL,
+  `b` int(11) DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+INSERT INTO `t2` (`a`, `b`) VALUES (1,2),(1,2);
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `t3` (
+  `invisible` int(11) DEFAULT NULL,
+  `a  b c & $!@#$%^&*( )` int(11) INVISIBLE DEFAULT 4,
+  `ds=~!@ \# $% ^ & * ( ) _ - = +` int(11) INVISIBLE DEFAULT 5
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+INSERT INTO `t3` (`invisible`, `a  b c & $!@#$%^&*( )`, `ds=~!@ \# $% ^ & * ( ) _ - = +`) VALUES (1,4,5),(5,4,5),(2,4,5),(1,2,3);
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `t4` (
+  `ËÏÌÏÎËÁ1` int(11) DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+INSERT INTO `t4` (`ËÏÌÏÎËÁ1`) VALUES (1);
+#Check xml
+<?xml version="1.0"?>
+<mysqldump xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<database name="d">
+	<table_structure name="t1">
+		<field Field="a" Type="int(11)" Null="YES" Key="" Default="NULL" Extra="" Comment="" />
+		<field Field="b" Type="int(11)" Null="YES" Key="" Default="NULL" Extra="INVISIBLE" Comment="" />
+	</table_structure>
+	<table_data name="t1">
+	<row>
+		<field name="a">1</field>
+		<field name="b" xsi:nil="true" />
+	</row>
+	<row>
+		<field name="a">1</field>
+		<field name="b">2</field>
+	</row>
+	</table_data>
+	<table_structure name="t2">
+		<field Field="a" Type="int(11)" Null="YES" Key="" Default="NULL" Extra="" Comment="" />
+		<field Field="b" Type="int(11)" Null="YES" Key="" Default="NULL" Extra="" Comment="" />
+	</table_structure>
+	<table_data name="t2">
+	<row>
+		<field name="a">1</field>
+		<field name="b">2</field>
+	</row>
+	<row>
+		<field name="a">1</field>
+		<field name="b">2</field>
+	</row>
+	</table_data>
+	<table_structure name="t3">
+		<field Field="invisible" Type="int(11)" Null="YES" Key="" Default="NULL" Extra="" Comment="" />
+		<field Field="a  b c &amp; $!@#$%^&amp;*( )" Type="int(11)" Null="YES" Key="" Default="4" Extra="INVISIBLE" Comment="" />
+		<field Field="ds=~!@ \# $% ^ &amp; * ( ) _ - = +" Type="int(11)" Null="YES" Key="" Default="5" Extra="INVISIBLE" Comment="" />
+	</table_structure>
+	<table_data name="t3">
+	<row>
+		<field name="invisible">1</field>
+		<field name="a  b c &amp; $!@#$%^&amp;*( )">4</field>
+		<field name="ds=~!@ \# $% ^ &amp; * ( ) _ - = +">5</field>
+	</row>
+	<row>
+		<field name="invisible">5</field>
+		<field name="a  b c &amp; $!@#$%^&amp;*( )">4</field>
+		<field name="ds=~!@ \# $% ^ &amp; * ( ) _ - = +">5</field>
+	</row>
+	<row>
+		<field name="invisible">2</field>
+		<field name="a  b c &amp; $!@#$%^&amp;*( )">4</field>
+		<field name="ds=~!@ \# $% ^ &amp; * ( ) _ - = +">5</field>
+	</row>
+	<row>
+		<field name="invisible">1</field>
+		<field name="a  b c &amp; $!@#$%^&amp;*( )">2</field>
+		<field name="ds=~!@ \# $% ^ &amp; * ( ) _ - = +">3</field>
+	</row>
+	</table_data>
+	<table_structure name="t4">
+		<field Field="ËÏÌÏÎËÁ1" Type="int(11)" Null="YES" Key="" Default="NULL" Extra="" Comment="" />
+	</table_structure>
+	<table_data name="t4">
+	<row>
+		<field name="ËÏÌÏÎËÁ1">1</field>
+	</row>
+	</table_data>
+</database>
+</mysqldump>
+DROP table t1,t2,t3;
+select * from t1;
+a
+1
+1
+select a,b from t1;
+a	b
+1	NULL
+1	2
+select * from t2;
+a	b
+1	2
+1	2
+select * from t3;
+invisible
+1
+5
+2
+1
+desc t3;
+Field	Type	Null	Key	Default	Extra
+invisible	int(11)	YES		NULL	
+a  b c & $!@#$%^&*( )	int(11)	YES		4	INVISIBLE
+ds=~!@ \# $% ^ & * ( ) _ - = +	int(11)	YES		5	INVISIBLE
+drop database d;
diff --git a/mysql-test/r/show_check.result b/mysql-test/r/show_check.result
@@ -1206,26 +1206,6 @@ DROP TABLE t1;
 DROP VIEW v1;
 DROP PROCEDURE p1;
 DROP FUNCTION f1;
-set names koi8r;
-DROP DATABASE IF EXISTS mysqltest1;
-CREATE DATABASE mysqltest1;
-use mysqltest1;
-CREATE TABLE t1(�������1 INT);
-
----> Dumping mysqltest1 to outfile1
-
-
-DROP DATABASE mysqltest1;
-
-
----> Restoring mysqltest1...
-SHOW CREATE TABLE mysqltest1.t1;
-Table	Create Table
-t1	CREATE TABLE `t1` (
-  `�������1` int(11) DEFAULT NULL
-) ENGINE=MyISAM DEFAULT CHARSET=latin1
-DROP DATABASE mysqltest1;
-use test;
 flush status;
 show variables like "log_queries_not_using_indexes";
 Variable_name	Value
@@ -1273,8 +1253,8 @@ PRIMARY KEY  (Codigo)
 ) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=utf8;
 show create table t1;
 Catalog	Database	Table	Table_alias	Column	Column_alias	Type	Length	Max length	Is_null	Flags	Decimals	Charsetnr
-def					Table	253	64	2	N	1	39	7
-def					Create Table	253	1024	458	N	1	39	7
+def					Table	253	192	2	N	1	39	33
+def					Create Table	253	3072	458	N	1	39	33
 Table	Create Table
 t1	CREATE TABLE `t1` (
   `Codigo` int(10) unsigned NOT NULL AUTO_INCREMENT,