HBASE-18142 Deletion of a cell deletes the previous versions too

Signed-off-by: Chia-Ping Tsai <chia7712@gmail.com>

hbase-shell/src/main/ruby/hbase/table.rb

@@ -102,7 +102,7 @@ flush and drop just by typing:
 Note that after dropping a table, your reference to it becomes useless and further usage
 is undefined (and not recommended).
 EOF
-      end
+    end
 
     #---------------------------------------------------------------------------------------------
 
@@ -162,14 +162,16 @@ EOF
     #----------------------------------------------------------------------------------------------
     # Delete a cell
     def _delete_internal(row, column,
-    			timestamp = org.apache.hadoop.hbase.HConstants::LATEST_TIMESTAMP, args = {})
+                timestamp = org.apache.hadoop.hbase.HConstants::LATEST_TIMESTAMP,
-      _deleteall_internal(row, column, timestamp, args)
+                args = {}, all_version = false)
+      _deleteall_internal(row, column, timestamp, args, all_version)
     end
 
     #----------------------------------------------------------------------------------------------
     # Delete a row
     def _deleteall_internal(row, column = nil,
-    		timestamp = org.apache.hadoop.hbase.HConstants::LATEST_TIMESTAMP, args = {})
+            timestamp = org.apache.hadoop.hbase.HConstants::LATEST_TIMESTAMP,
+            args = {}, all_version = true)
       # delete operation doesn't need read permission. Retaining the read check for
       # meta table as a part of HBASE-5837.
       if is_meta_table?
@@ -191,9 +193,12 @@ EOF
          visibility = args[VISIBILITY]
          set_cell_visibility(d, visibility) if visibility
       end
-      if column
+      if column && all_version
         family, qualifier = parse_column_name(column)
         d.deleteColumns(family, qualifier, timestamp)
+      elsif column && !all_version
+        family, qualifier = parse_column_name(column)
+        d.deleteColumn(family, qualifier, timestamp)
       end
       @table.delete(d)
     end

hbase-shell/src/main/ruby/shell/commands/delete.rb

@@ -40,15 +40,15 @@ t to table 't1', the corresponding command would be:
 EOF
       end
 
-      def command(table, row, column, 
+      def command(table, row, column = nil,
       				timestamp = org.apache.hadoop.hbase.HConstants::LATEST_TIMESTAMP, args = {})
         delete(table(table), row, column, timestamp, args)
       end
 
-      def delete(table, row, column, 
+      def delete(table, row, column = nil,
       				timestamp = org.apache.hadoop.hbase.HConstants::LATEST_TIMESTAMP, args = {})
         format_simple_command do
-          table._delete_internal(row, column, timestamp, args)
+          table._delete_internal(row, column, timestamp, args, false)
         end
       end
     end

hbase-shell/src/main/ruby/shell/commands/deleteall.rb

@@ -49,7 +49,7 @@ EOF
       def deleteall(table, row, column = nil,
                     timestamp = org.apache.hadoop.hbase.HConstants::LATEST_TIMESTAMP, args = {})
         format_simple_command do
-          table._deleteall_internal(row, column, timestamp, args)
+          table._deleteall_internal(row, column, timestamp, args, true)
         end
       end
     end

hbase-shell/src/test/ruby/hbase/table_test.rb

@@ -104,20 +104,14 @@ module Hbase
       @test_name = "hbase_shell_tests_table"
       create_test_table(@test_name)
       @test_table = table(@test_name)
-      
+
       # Insert data to perform delete operations
-      @test_table.put("101", "x:a", "1")
+      @test_table.put("102", "x:a", "2", 1212)
-      @test_table.put("101", "x:a", "2", Time.now.to_i)
+      @test_table.put(103, "x:a", "3", 1214)
-      
+
-      @test_table.put("102", "x:a", "1", 1212)
-      @test_table.put("102", "x:a", "2", 1213)
-      
-      @test_table.put(103, "x:a", "3")
-      @test_table.put(103, "x:a", "4")
-      
       @test_table.put("104", "x:a", 5)
       @test_table.put("104", "x:b", 6)
-      
+
       @test_table.put(105, "x:a", "3")
       @test_table.put(105, "x:a", "4")
     end
@@ -149,20 +143,16 @@ module Hbase
 
     #-------------------------------------------------------------------------------
 
-    define_test "delete should work without timestamp" do
+    define_test "delete should work with string keys" do
-      @test_table.delete("101", "x:a")
+      @test_table.delete('102', 'x:a', 1212)
-      res = @test_table._get_internal('101', 'x:a')
-      assert_nil(res)
-    end
-
-    define_test "delete should work with timestamp" do
-      @test_table.delete("102", "x:a", 1214)
       res = @test_table._get_internal('102', 'x:a')
       assert_nil(res)
     end
 
     define_test "delete should work with integer keys" do
-      @test_table.delete(103, "x:a")
+      res = @test_table._get_internal('103', 'x:a')
+      assert_not_nil(res)
+      @test_table.delete(103, 'x:a', 1214)
       res = @test_table._get_internal('103', 'x:a')
       assert_nil(res)
     end
@@ -376,8 +366,8 @@ module Hbase
           assert_not_nil(/value=98/.match(res['x:d']))
         ensure
           # clean up newly added columns for this test only.
-          @test_table.delete(1, "x:c")
+          @test_table.deleteall(1, 'x:c')
-          @test_table.delete(1, "x:d")
+          @test_table.deleteall(1, 'x:d')
         end
     end
 
@@ -393,7 +383,7 @@ module Hbase
         assert_nil(res)
       ensure
         # clean up newly added columns for this test only.
-        @test_table.delete(1, "x:v")
+        @test_table.deleteall(1, 'x:v')
       end
     end
 
@@ -576,8 +566,8 @@ module Hbase
         assert_not_nil(/value=98/.match(res['1']['x:d']))
       ensure
         # clean up newly added columns for this test only.
-        @test_table.delete(1, "x:c")
+        @test_table.deleteall(1, 'x:c')
-        @test_table.delete(1, "x:d")
+        @test_table.deleteall(1, 'x:d')
       end
     end
 
@@ -595,7 +585,7 @@ module Hbase
         assert_equal(res, {}, "Result is not empty")
       ensure
         # clean up newly added columns for this test only.
-        @test_table.delete(1, "x:v")
+        @test_table.deleteall(1, 'x:v')
       end
     end
 
@@ -611,7 +601,7 @@ module Hbase
         assert_nil(res['2'])
       ensure
         # clean up newly added columns for this test only.
-        @test_table.delete(4, "x:a")
+        @test_table.deleteall(4, 'x:a')
       end
     end
 
@@ -624,7 +614,7 @@ module Hbase
         res = @test_table._get_internal('ttlTest', 'x:a')
         assert_nil(res)
       ensure
-        @test_table.delete('ttlTest', 'x:a')
+        @test_table.deleteall('ttlTest', 'x:a')
       end
     end