Add test for partial backup for partitioned table.

extra/mariabackup/xtrabackup.cc

@@ -1469,7 +1469,7 @@ debug_sync_point(const char *name)
 }
 
 
-static std::vector<std::string> tables_for_export;
+static std::set<std::string> tables_for_export;
 
 static void append_export_table(const char *dbname, const char *tablename, bool is_remote)
 {
@@ -1481,7 +1481,15 @@ static void append_export_table(const char *dbname, const char *tablename, bool
     char *p=strrchr(buf, '.');
     if (p) *p=0;
 
-    tables_for_export.push_back(ut_get_name(0,buf));
+    std::string name=ut_get_name(0, buf);
+    /* Strip partition name comment from table name, if any */
+    if (ends_with(name.c_str(), "*/"))
+    {
+      size_t pos= name.rfind("/*");
+      if (pos != std::string::npos)
+         name.resize(pos);
+    }
+    tables_for_export.insert(name);
   }
 }
 
@@ -1496,9 +1504,10 @@ static int create_bootstrap_file()
 
   fputs("SET NAMES UTF8;\n",f);
   enumerate_ibd_files(append_export_table);
-  for (size_t i= 0; i < tables_for_export.size(); i++)
+  for (std::set<std::string>::iterator it = tables_for_export.begin();
+       it != tables_for_export.end(); it++)
   {
-     const char *tab = tables_for_export[i].c_str();
+     const char *tab = it->c_str();
      fprintf(f,
      "BEGIN NOT ATOMIC "
        "DECLARE CONTINUE HANDLER FOR NOT FOUND,SQLEXCEPTION BEGIN END;"
@@ -1528,7 +1537,7 @@ static int prepare_export()
     snprintf(cmdline, sizeof cmdline,
      IF_WIN("\"","") "\"%s\" --mysqld \"%s\" "
       " --defaults-extra-file=./backup-my.cnf --defaults-group-suffix=%s --datadir=."
-      " --innodb --innodb-fast-shutdown=0"
+      " --innodb --innodb-fast-shutdown=0 --loose-partition"
       " --innodb_purge_rseg_truncate_frequency=1 --innodb-buffer-pool-size=%llu"
       " --console  --skip-log-error --bootstrap  < "  BOOTSTRAP_FILENAME IF_WIN("\"",""),
       mariabackup_exe, 
@@ -1540,7 +1549,7 @@ static int prepare_export()
     sprintf(cmdline,
      IF_WIN("\"","") "\"%s\" --mysqld"
       " --defaults-file=./backup-my.cnf --defaults-group-suffix=%s --datadir=."
-      " --innodb --innodb-fast-shutdown=0"
+      " --innodb --innodb-fast-shutdown=0 --loose-partition"
       " --innodb_purge_rseg_truncate_frequency=1 --innodb-buffer-pool-size=%llu"
       " --console  --log-error= --bootstrap  < "  BOOTSTRAP_FILENAME IF_WIN("\"",""),
       mariabackup_exe,
@@ -5851,7 +5860,6 @@ check_all_privileges()
 	mysql_free_result(result);
 
 	int check_result = PRIVILEGE_OK;
-	bool reload_checked = false;
 
 	/* FLUSH TABLES WITH READ LOCK */
 	if (!opt_no_lock)
@@ -5859,7 +5867,6 @@ check_all_privileges()
 		check_result |= check_privilege(
 			granted_privileges,
 			"RELOAD", "*", "*");
-		reload_checked = true;
 	}
 
 	if (!opt_no_lock)

mysql-test/suite/mariabackup/partition_partial.result

+CREATE TABLE t1(i INT) ENGINE INNODB
+PARTITION BY RANGE (i)
+(PARTITION p1 VALUES LESS THAN (100),
+PARTITION p2 VALUES LESS THAN (200),
+PARTITION p3 VALUES LESS THAN (300),
+PARTITION p4 VALUES LESS THAN (400));
+INSERT INTO t1 VALUES (1), (101), (201), (301);
+# xtrabackup backup
+INSERT INTO t1 VALUES (1), (101), (201), (301);
+# xtrabackup prepare
+CREATE TABLE t1_placeholder (i INT) ENGINE INNODB;
+ALTER TABLE t1_placeholder DISCARD TABLESPACE;
+ALTER TABLE t1_placeholder IMPORT TABLESPACE;
+ALTER TABLE t1 EXCHANGE PARTITION p4 WITH TABLE t1_placeholder;
+ALTER TABLE t1_placeholder DISCARD TABLESPACE;
+ALTER TABLE t1_placeholder IMPORT TABLESPACE;
+ALTER TABLE t1 EXCHANGE PARTITION p3 WITH TABLE t1_placeholder;
+ALTER TABLE t1_placeholder DISCARD TABLESPACE;
+ALTER TABLE t1_placeholder IMPORT TABLESPACE;
+ALTER TABLE t1 EXCHANGE PARTITION p2 WITH TABLE t1_placeholder;
+ALTER TABLE t1_placeholder DISCARD TABLESPACE;
+ALTER TABLE t1_placeholder IMPORT TABLESPACE;
+ALTER TABLE t1 EXCHANGE PARTITION p1 WITH TABLE t1_placeholder;
+SELECT * FROM t1;
+i
+1
+101
+201
+301
+DROP TABLE t1;
+DROP TABLE t1_placeholder;

mysql-test/suite/mariabackup/partition_partial.test

+#--source include/innodb_page_size.inc
+
+# import partitioned table from  table from partial backup
+
+CREATE TABLE t1(i INT) ENGINE INNODB
+PARTITION BY RANGE (i)
+(PARTITION p1 VALUES LESS THAN (100),
+ PARTITION p2 VALUES LESS THAN (200),
+ PARTITION p3 VALUES LESS THAN (300),
+ PARTITION p4 VALUES LESS THAN (400));
+
+INSERT INTO t1 VALUES (1), (101), (201), (301);
+
+echo # xtrabackup backup;
+
+let $targetdir=$MYSQLTEST_VARDIR/tmp/backup;
+--disable_result_log
+exec $XTRABACKUP --defaults-file=$MYSQLTEST_VARDIR/my.cnf  --backup "--tables=test.t1" --target-dir=$targetdir;
+--enable_result_log
+INSERT INTO t1 VALUES (1), (101), (201), (301);
+
+
+echo # xtrabackup prepare;
+--disable_result_log
+exec $XTRABACKUP --defaults-file=$MYSQLTEST_VARDIR/my.cnf --defaults-group-suffix=.1 --prepare --export --target-dir=$targetdir;
+--enable_result_log
+
+
+let $MYSQLD_DATADIR= `select @@datadir`;
+CREATE TABLE t1_placeholder (i INT) ENGINE INNODB;
+let $i=4;
+while($i)
+{
+  eval ALTER TABLE t1_placeholder DISCARD TABLESPACE;
+  copy_file $targetdir/test/t1#P#p$i.cfg $MYSQLD_DATADIR/test/t1_placeholder.cfg;
+  copy_file $targetdir/test/t1#P#p$i.ibd $MYSQLD_DATADIR/test/t1_placeholder.ibd;
+  eval ALTER TABLE t1_placeholder IMPORT TABLESPACE;
+  eval ALTER TABLE t1 EXCHANGE PARTITION p$i WITH TABLE t1_placeholder;
+  dec $i;
+}
+SELECT * FROM t1;
+DROP TABLE t1;
+DROP TABLE t1_placeholder;
+rmdir $targetdir;