diff --git a/lib/aerospike/cdt/map_operation.rb b/lib/aerospike/cdt/map_operation.rb
index b5e2d55..b978fbe 100644
--- a/lib/aerospike/cdt/map_operation.rb
+++ b/lib/aerospike/cdt/map_operation.rb
@@ -116,7 +116,7 @@ def initialize(op_type, map_op, bin_name, *arguments, ctx: nil, return_type: nil
       def self.create(bin_name, order, ctx: nil)
         if !ctx || ctx.length == 0
           # If context not defined, the set order for top-level bin map.
-          self.set_policy(MapPolicy.new(order: order, flag: 0), bin_name)
+          self.set_policy(MapPolicy.new(order: order, flags: 0), bin_name)
         else
           MapOperation.new(Operation::CDT_MODIFY, SET_TYPE, bin_name, order[:attr], ctx: ctx, flag: order[:flag])
         end
diff --git a/lib/aerospike/client.rb b/lib/aerospike/client.rb
index 0031025..1b56c9c 100644
--- a/lib/aerospike/client.rb
+++ b/lib/aerospike/client.rb
@@ -529,7 +529,7 @@ def execute_udf(key, package_name, function_name, args = [], options = nil)
     # This method is only supported by Aerospike 3 servers.
     # If the policy is nil, the default relevant policy will be used.
     def execute_udf_on_query(statement, package_name, function_name, function_args = [], options = nil)
-      policy = create_policy(options, QueryPolicy, default_query_policy)
+      policy = create_policy(options, WritePolicy, default_write_policy)
 
       nodes = @cluster.nodes
       if nodes.empty?
@@ -538,14 +538,12 @@ def execute_udf_on_query(statement, package_name, function_name, function_args =
 
       statement = statement.clone
       statement.set_aggregate_function(package_name, function_name, function_args, false)
-
       # Use a thread per node
       nodes.each do |node|
-        partitions = node.cluster.node_partitions(node, statement.namespace)
         Thread.new do
           Thread.current.abort_on_exception = true
           begin
-            command = QueryCommand.new(node, policy, statement, nil, partitions)
+            command = ServerCommand.new(@cluster, node, policy, statement, true, statement.task_id)
             execute_command(command)
           rescue => e
             Aerospike.logger.error(e)
@@ -701,7 +699,6 @@ def scan_node(node, namespace, set_name, bin_names = nil, options = nil)
     # If the policy is nil, the default relevant policy will be used.
     def query_partitions(partition_filter, statement, options = nil)
       policy = create_policy(options, QueryPolicy, default_query_policy)
-      new_policy = policy.clone
 
       nodes = @cluster.nodes
       if nodes.empty?
diff --git a/lib/aerospike/command/batch_direct_command.rb b/lib/aerospike/command/batch_direct_command.rb
index 77e4626..3c96d82 100644
--- a/lib/aerospike/command/batch_direct_command.rb
+++ b/lib/aerospike/command/batch_direct_command.rb
@@ -60,7 +60,7 @@ def write_buffer
         operation_count = bin_names.length
       end
 
-      write_header(policy, read_attr, 0, 2, operation_count)
+      write_header_read(policy, read_attr, 0, 2, operation_count)
       write_field_string(batch.namespace, Aerospike::FieldType::NAMESPACE)
       write_field_header(byte_size, Aerospike::FieldType::DIGEST_RIPE_ARRAY)
 
diff --git a/lib/aerospike/command/batch_index_command.rb b/lib/aerospike/command/batch_index_command.rb
index 1ca3572..6583527 100644
--- a/lib/aerospike/command/batch_index_command.rb
+++ b/lib/aerospike/command/batch_index_command.rb
@@ -66,7 +66,7 @@ def write_buffer
         end
       end
       size_buffer
-      write_header(policy,read_attr | INFO1_BATCH, 0, field_count, 0)
+      write_header_read(policy, read_attr | INFO1_BATCH, 0, field_count, 0)
 
       write_predexp(@policy.predexp, predexp_size)
 
diff --git a/lib/aerospike/command/command.rb b/lib/aerospike/command/command.rb
index 535af93..e8b62ce 100644
--- a/lib/aerospike/command/command.rb
+++ b/lib/aerospike/command/command.rb
@@ -124,7 +124,7 @@ def set_write(policy, operation, key, bins)
 
       size_buffer
 
-      write_header_with_policy(policy, 0, INFO2_WRITE, field_count, bins.length)
+      write_header_write(policy, INFO2_WRITE, field_count, bins.length)
       write_key(key, policy)
       write_predexp(policy.predexp, predexp_size)
       write_filter_exp(@policy.filter_exp, exp_size)
@@ -149,7 +149,7 @@ def set_delete(policy, key)
       field_count += 1 if exp_size > 0
 
       size_buffer
-      write_header_with_policy(policy, 0, INFO2_WRITE | INFO2_DELETE, field_count, 0)
+      write_header_write(policy,  INFO2_WRITE | INFO2_DELETE, field_count, 0)
       write_key(key)
       write_predexp(policy.predexp, predexp_size)
       write_filter_exp(@policy.filter_exp, exp_size)
@@ -169,7 +169,7 @@ def set_touch(policy, key)
 
       estimate_operation_size
       size_buffer
-      write_header_with_policy(policy, 0, INFO2_WRITE, field_count, 1)
+      write_header_write(policy,  INFO2_WRITE, field_count, 1)
       write_key(key)
       write_predexp(policy.predexp, predexp_size)
       write_filter_exp(@policy.filter_exp, exp_size)
@@ -189,7 +189,7 @@ def set_exists(policy, key)
       field_count += 1 if exp_size > 0
 
       size_buffer
-      write_header(policy, INFO1_READ | INFO1_NOBINDATA, 0, field_count, 0)
+      write_header_read_header(policy, INFO1_READ | INFO1_NOBINDATA, field_count, 0)
       write_key(key)
       write_predexp(policy.predexp, predexp_size)
       write_filter_exp(@policy.filter_exp, exp_size)
@@ -208,7 +208,7 @@ def set_read_for_key_only(policy, key)
       field_count += 1 if exp_size > 0
 
       size_buffer
-      write_header(policy, INFO1_READ | INFO1_GET_ALL, 0, field_count, 0)
+      write_header_read(policy, INFO1_READ | INFO1_GET_ALL, 0, field_count, 0)
       write_key(key)
       write_predexp(policy.predexp, predexp_size)
       write_filter_exp(@policy.filter_exp, exp_size)
@@ -217,7 +217,7 @@ def set_read_for_key_only(policy, key)
 
     # Writes the command for get operations (specified bins)
     def set_read(policy, key, bin_names)
-      if bin_names && bin_names.length > 0
+      if bin_names && !bin_names.empty?
         begin_cmd
         field_count = estimate_key_size(key)
 
@@ -232,7 +232,12 @@ def set_read(policy, key, bin_names)
         end
 
         size_buffer
-        write_header(policy, INFO1_READ, 0, field_count, bin_names.length)
+        attr = INFO1_READ
+        if bin_names.empty?
+          attr |= INFO1_GET_ALL
+        end
+
+        write_header_read(policy, attr, 0, field_count, bin_names.length)
         write_key(key)
         write_predexp(policy.predexp, predexp_size)
         write_filter_exp(@policy.filter_exp, exp_size)
@@ -242,6 +247,7 @@ def set_read(policy, key, bin_names)
         end
 
         end_cmd
+        mark_compressed(policy)
       else
         set_read_for_key_only(policy, key)
       end
@@ -258,20 +264,19 @@ def set_read_header(policy, key)
       exp_size = estimate_expression_size(@policy.filter_exp)
       field_count += 1 if exp_size > 0
 
-      estimate_operation_size_for_bin_name("")
       size_buffer
 
       # The server does not currently return record header data with _INFO1_NOBINDATA attribute set.
       # The workaround is to request a non-existent bin.
       # TODO: Fix this on server.
       #command.set_read(INFO1_READ | _INFO1_NOBINDATA);
-      write_header(policy, INFO1_READ, 0, field_count, 1)
+      write_header_read_header(policy, INFO1_READ|INFO1_NOBINDATA, field_count, 0)
 
       write_key(key)
       write_predexp(policy.predexp, predexp_size)
       write_filter_exp(@policy.filter_exp, exp_size)
-      write_operation_for_bin_name("", Aerospike::Operation::READ)
       end_cmd
+      mark_compressed(policy)
     end
 
     # Implements different command operations
@@ -289,7 +294,7 @@ def set_operate(policy, key, args)
 
       size_buffer
 
-      write_header_with_policy(policy, args.read_attr, args.write_attr, field_count, args.operations.length)
+      write_header_read_write(policy, args.read_attr, args.write_attr, field_count, args.operations.length)
       write_key(key, policy)
       write_predexp(policy.predexp, predexp_size)
       write_filter_exp(policy.filter_exp, exp_size)
@@ -317,7 +322,7 @@ def set_udf(policy, key, package_name, function_name, args)
       field_count += estimate_udf_size(package_name, function_name, arg_bytes)
       size_buffer
 
-      write_header(policy, 0, INFO2_WRITE, field_count, 0)
+      write_header_write(policy, INFO2_WRITE, field_count, 0)
       write_key(key, policy)
       write_predexp(policy.predexp, predexp_size)
       write_filter_exp(@policy.filter_exp, exp_size)
@@ -329,7 +334,7 @@ def set_udf(policy, key, package_name, function_name, args)
       mark_compressed(policy)
     end
 
-    def set_scan(policy, namespace, set_name, bin_names, node_partitions)
+    def set_scan(cluster, policy, namespace, set_name, bin_names, node_partitions)
       # Estimate buffer size
       begin_cmd
       field_count = 0
@@ -395,12 +400,17 @@ def set_scan(policy, namespace, set_name, bin_names, node_partitions)
         read_attr |= INFO1_NOBINDATA
       end
 
+      info_attr = 0
+      if cluster.supports_feature?(Aerospike::Features::PARTITION_QUERY)
+        info_attr = INFO3_PARTITION_DONE
+      end
+
       operation_count = 0
-      if bin_names
+      unless bin_names.nil?
         operation_count = bin_names.length
       end
 
-      write_header(policy, read_attr, 0, field_count, operation_count)
+      write_header_read(policy, read_attr, info_attr, field_count, operation_count)
 
       if namespace
         write_field_string(namespace, Aerospike::FieldType::NAMESPACE)
@@ -465,11 +475,13 @@ def set_scan(policy, namespace, set_name, bin_names, node_partitions)
       end_cmd
     end
 
-    def set_query(policy, statement, background, node_partitions)
+
+    def set_query(cluster, policy, statement, background, node_partitions)
       function_arg_buffer = nil
       field_count = 0
       filter_size = 0
 
+      is_new = cluster.supports_feature?(Aerospike::Features::PARTITION_QUERY)
       begin_cmd
 
       if statement.namespace
@@ -548,7 +560,7 @@ def set_query(policy, statement, background, node_partitions)
         @data_offset += statement.function_name.bytesize + FIELD_HEADER_SIZE
 
         function_arg_buffer = ""
-        if statement.function_args && statement.function_args.length > 0
+        if statement.function_args && !statement.function_args.empty?
           function_arg_buffer = Value.of(statement.function_args).to_bytes
         end
         @data_offset += FIELD_HEADER_SIZE + function_arg_buffer.bytesize
@@ -592,10 +604,13 @@ def set_query(policy, statement, background, node_partitions)
         field_count += 1
       end
 
-      operations = statement.operations
+      unless statement.operations.nil?
+        operations = statement.operations
+      end
+
       operation_count = 0
 
-      if !operations.empty?
+      if operations
 
         unless background
           raise Aerospike::Exceptions::Aerospike.new(Aerospike::ResultCode::PARAMETER_ERROR)
@@ -612,21 +627,24 @@ def set_query(policy, statement, background, node_partitions)
         operation_count = bin_names.length
         # Estimate size for selected bin names (query bin names already handled for old servers).
       end
-
+      @data_buffer.reset
       size_buffer
 
       if background
-        write_header_with_policy(policy, 0, INFO2_WRITE, field_count, operation_count)
+        write_header_write(policy, INFO2_WRITE, field_count, operation_count)
       else
         read_attr = INFO1_READ
         read_attr |= INFO1_NOBINDATA unless policy.include_bin_data
         read_attr |= INFO1_SHORT_QUERY if policy.short_query
-        write_header(policy, read_attr, 0, field_count, operation_count)
+        info_attr = INFO3_PARTITION_DONE if is_new
+        write_header_read(policy, read_attr, info_attr, field_count, operation_count)
       end
 
+
       write_field_string(statement.namespace, FieldType::NAMESPACE) if statement.namespace
       write_field_string(statement.set_name, FieldType::TABLE) if statement.set_name
 
+
       # Write records per second.
       write_field_int(statement.records_per_second, FieldType::RECORDS_PER_SECOND) if statement.records_per_second > 0
 
@@ -670,7 +688,6 @@ def set_query(policy, statement, background, node_partitions)
         write_field_string(statement.function_name, FieldType::UDF_FUNCTION)
         write_field_string(function_arg_buffer, FieldType::UDF_ARGLIST)
       end
-
       if parts_full_size > 0
         write_field_header(parts_full_size, FieldType::PID_ARRAY)
         node_partitions.parts_full.each do |part|
@@ -696,23 +713,32 @@ def set_query(policy, statement, background, node_partitions)
         write_field(max_records, FieldType::MAX_RECORDS)
       end
 
-      if operations.empty?
-        if bin_names.empty?
-          bin_names.each do |bin_name|
-            write_operation_for_bin_name(bin_name, Operation::READ)
-          end
-        end
-      else
+      if !operations.nil?
         operations.each do |operation|
           write_operation_for_operation(operation)
         end
+      elsif !bin_names.nil? && (is_new || filter.nil?)
+        bin_names.each do |bin_name|
+          write_operation_for_bin_name(bin_name, Operation::READ)
+        end
       end
-
       end_cmd
+    end
+
+    def hex_dump_from_string(data_buffer)
+      byte_array = data_buffer.to_s.unpack('C*')
+      hex_dump(byte_array)
+    end
 
-      nil
+    def hex_dump(byte_array)
+      byte_array.each_slice(16) do |slice|
+        hex_line = slice.map { |b| format('%02X', b) }.join(' ')
+        char_line = slice.map { |b| (b >= 32 && b <= 126) ? b.chr : '.' }.join
+        puts "#{hex_line.ljust(48)} | #{char_line}"
+      end
     end
 
+
     def execute
       iterations = 0
 
@@ -764,7 +790,6 @@ def execute
 
           # Reset timeout in send buffer (destined for server) and socket.
           @data_buffer.write_int32((@policy.timeout * 1000).to_i, 22)
-
           # Send command.
           begin
             @conn.write(@data_buffer, @data_offset)
@@ -879,7 +904,7 @@ def estimate_operation_size
     end
 
     def estimate_predexp(predexp)
-      if predexp && predexp.size > 0
+      if predexp && !predexp.empty?
         @data_offset += FIELD_HEADER_SIZE
         sz = Aerospike::PredExp.estimate_size(predexp)
         @data_offset += sz
@@ -897,21 +922,52 @@ def estimate_expression_size(exp)
       0
     end
 
-    # Generic header write.
-    def write_header(policy, read_attr, write_attr, field_count, operation_count)
-      read_attr |= INFO1_CONSISTENCY_ALL if policy.consistency_level == Aerospike::ConsistencyLevel::CONSISTENCY_ALL
-      read_attr |= INFO1_COMPRESS_RESPONSE if policy.use_compression
+    # Header write for write command
+    def write_header_write(policy, write_attr, field_count, operation_count)
+      # Set flags.
+      generation = Integer(0)
+      info_attr = Integer(0)
+      read_attr = Integer(0)
+
+      case policy.record_exists_action
+      when Aerospike::RecordExistsAction::UPDATE
+      when Aerospike::RecordExistsAction::UPDATE_ONLY
+        info_attr |= INFO3_UPDATE_ONLY
+      when Aerospike::RecordExistsAction::REPLACE
+        info_attr |= INFO3_CREATE_OR_REPLACE
+      when Aerospike::RecordExistsAction::REPLACE_ONLY
+        info_attr |= INFO3_REPLACE_ONLY
+      when Aerospike::RecordExistsAction::CREATE_ONLY
+        write_attr |= INFO2_CREATE_ONLY
+      end
+
+      case policy.generation_policy
+      when Aerospike::GenerationPolicy::NONE
+      when Aerospike::GenerationPolicy::EXPECT_GEN_EQUAL
+        generation = policy.generation
+        write_attr |= INFO2_GENERATION
+      when Aerospike::GenerationPolicy::EXPECT_GEN_GT
+        generation = policy.generation
+        write_attr |= INFO2_GENERATION_GT
+      end
 
+      info_attr |= INFO3_COMMIT_MASTER if policy.commit_level == Aerospike::CommitLevel::COMMIT_MASTER
+      write_attr |= INFO2_DURABLE_DELETE if policy.durable_delete
       # Write all header data except total size which must be written last.
-      @data_buffer.write_byte(MSG_REMAINING_HEADER_SIZE, 8) # Message heade.length.
+      @data_buffer.write_byte(MSG_REMAINING_HEADER_SIZE, 8) # Message header.length.
       @data_buffer.write_byte(read_attr, 9)
       @data_buffer.write_byte(write_attr, 10)
+      @data_buffer.write_byte(info_attr, 11)
+      @data_buffer.write_byte(0, 12) # unused
+      @data_buffer.write_byte(0, 13) # clear the result code
+      @data_buffer.write_uint32(generation, 14)
+      @data_buffer.write_uint32(policy.ttl, 18)
 
-      i = 11
-      while i <= 25
-        @data_buffer.write_byte(0, i)
-        i = i.succ
-      end
+      # Initialize timeout. It will be written later.
+      @data_buffer.write_byte(0, 22)
+      @data_buffer.write_byte(0, 23)
+      @data_buffer.write_byte(0, 24)
+      @data_buffer.write_byte(0, 25)
 
       @data_buffer.write_int16(field_count, 26)
       @data_buffer.write_int16(operation_count, 28)
@@ -920,7 +976,7 @@ def write_header(policy, read_attr, write_attr, field_count, operation_count)
     end
 
     # Header write for write operations.
-    def write_header_with_policy(policy, read_attr, write_attr, field_count, operation_count)
+    def write_header_read_write(policy, read_attr, write_attr, field_count, operation_count)
       # Set flags.
       generation = Integer(0)
       info_attr = Integer(0)
@@ -948,9 +1004,9 @@ def write_header_with_policy(policy, read_attr, write_attr, field_count, operati
       end
 
       info_attr |= INFO3_COMMIT_MASTER if policy.commit_level == Aerospike::CommitLevel::COMMIT_MASTER
-      read_attr |= INFO1_CONSISTENCY_ALL if policy.consistency_level == Aerospike::ConsistencyLevel::CONSISTENCY_ALL
       write_attr |= INFO2_DURABLE_DELETE if policy.durable_delete
       read_attr |= INFO1_COMPRESS_RESPONSE if policy.use_compression
+
       # Write all header data except total size which must be written last.
       @data_buffer.write_byte(MSG_REMAINING_HEADER_SIZE, 8) # Message header.length.
       @data_buffer.write_byte(read_attr, 9)
@@ -973,6 +1029,52 @@ def write_header_with_policy(policy, read_attr, write_attr, field_count, operati
       @data_offset = MSG_TOTAL_HEADER_SIZE
     end
 
+    def write_header_read(policy, read_attr, info_attr, field_count, operation_count)
+      read_attr |= INFO1_COMPRESS_RESPONSE if policy.use_compression
+      #TODO: Add SC Mode
+
+      @data_buffer.write_byte(MSG_REMAINING_HEADER_SIZE, 8) # Message header.length.
+      @data_buffer.write_byte(read_attr, 9)
+      @data_buffer.write_byte(0, 10)
+      @data_buffer.write_byte(info_attr, 11)
+
+      (12...22).each { |i| @data_buffer.write_byte(i, 0) }
+
+      # Initialize timeout. It will be written later.
+      @data_buffer.write_byte(0, 22)
+      @data_buffer.write_byte(0, 23)
+      @data_buffer.write_byte(0, 24)
+      @data_buffer.write_byte(0, 25)
+
+      @data_buffer.write_int16(field_count, 26)
+      @data_buffer.write_int16(operation_count, 28)
+
+      @data_offset = MSG_TOTAL_HEADER_SIZE
+    end
+
+    def write_header_read_header(policy, read_attr, field_count, operation_count)
+      info_attr = Integer(0)
+      #TODO: Add SC Mode
+
+      @data_buffer.write_byte(MSG_REMAINING_HEADER_SIZE, 8) # Message header.length.
+      @data_buffer.write_byte(read_attr, 9)
+      @data_buffer.write_byte(0, 10)
+      @data_buffer.write_byte(info_attr, 11)
+
+      (12...22).each { |i| @data_buffer.write_byte(i, 0) }
+
+      # Initialize timeout. It will be written later.
+      @data_buffer.write_byte(0, 22)
+      @data_buffer.write_byte(0, 23)
+      @data_buffer.write_byte(0, 24)
+      @data_buffer.write_byte(0, 25)
+
+      @data_buffer.write_int16(field_count, 26)
+      @data_buffer.write_int16(operation_count, 28)
+
+      @data_offset = MSG_TOTAL_HEADER_SIZE
+    end
+
     def write_key(key, policy = nil)
       # Write key into buffer.
       if key.namespace
@@ -1111,7 +1213,7 @@ def write_field_header(size, ftype)
     end
 
     def write_predexp(predexp, predexp_size)
-      if predexp && predexp.size > 0
+      if predexp && !predexp.empty?
         write_field_header(predexp_size, Aerospike::FieldType::FILTER_EXP)
         @data_offset = Aerospike::PredExp.write(
           predexp, @data_buffer, @data_offset
@@ -1152,13 +1254,13 @@ def compress_buffer
         compressed = Zlib::deflate(@data_buffer.buf, Zlib::DEFAULT_COMPRESSION)
 
         # write original size as header
-        proto_s = "%08d" % 0
+        proto_s = format("%08d", 0)
         proto_s[0, 8] = [@data_offset].pack("q>")
         compressed.prepend(proto_s)
 
         # write proto
         proto = (compressed.size + 8) | Integer(CL_MSG_VERSION << 56) | Integer(AS_MSG_TYPE << 48)
-        proto_s = "%08d" % 0
+        proto_s = format("%08d", 0)
         proto_s[0, 8] = [proto].pack("q>")
         compressed.prepend(proto_s)
 
diff --git a/lib/aerospike/exp/exp.rb b/lib/aerospike/exp/exp.rb
index f994ab6..b3f3a09 100644
--- a/lib/aerospike/exp/exp.rb
+++ b/lib/aerospike/exp/exp.rb
@@ -1,5 +1,5 @@
 # encoding: utf-8
-# Copyright 2014-2022 Aerospike, Inc.
+# Copyright 2014-2023 Aerospike, Inc.
 #
 # Portions may be licensed to Aerospike, Inc. under one or more contributor
 # license agreements.
@@ -210,7 +210,7 @@ def self.hll_bin(name)
     #   # Bin "a" exists in record
     #   Exp.bin_exists("a")
     def self.bin_exists(name)
-      return Exp.ne(Exp.bin_type(name), Exp.int_val(0))
+      Exp.ne(Exp.bin_type(name), Exp.int_val(0))
     end
 
     # Create expression that returns bin's integer particle type::
@@ -223,6 +223,20 @@ def self.bin_type(name)
       CmdStr.new(BIN_TYPE, name)
     end
 
+    # Create expression that returns the record size. This expression usually evaluates
+    # quickly because record meta data is cached in memory.
+    # Requires server version 7.0+. This expression replaces {@link #deviceSize()} and
+    # {@link #memorySize()} since those older expressions are equivalent on server version 7.0+.
+    #
+    # {@code
+    # // Record size >= 100 KB
+    # Exp.ge(Exp.record_size(), Exp.val(100 * 1024))
+    # }
+    def self.record_size
+      Cmd.new(RECORD_SIZE)
+    end
+
+
     #--------------------------------------------------
     # Misc
     #--------------------------------------------------
@@ -1010,6 +1024,7 @@ def write(buf, offset)
     KEY_EXISTS = 71
     IS_TOMBSTONE = 72
     MEMORY_SIZE = 73
+    RECORD_SIZE = 74
     KEY = 80
     BIN = 81
     BIN_TYPE = 82
diff --git a/lib/aerospike/node.rb b/lib/aerospike/node.rb
index d8fa4eb..f95b9bb 100644
--- a/lib/aerospike/node.rb
+++ b/lib/aerospike/node.rb
@@ -26,6 +26,11 @@ class Node
 
     PARTITIONS = 4096
     FULL_HEALTH = 100
+    HAS_PARTITION_SCAN = 1 << 0
+    HAS_QUERY_SHOW = 1 << 1
+    HAS_BATCH_ANY = 1 << 2
+    HAS_PARTITION_QUERY = 1 << 3
+
 
     # Initialize server node with connection parameters.
     def initialize(cluster, nv)
@@ -58,6 +63,14 @@ def initialize(cluster, nv)
       @connections = ::Aerospike::ConnectionPool.new(cluster, host)
     end
 
+    def partition_query?
+      (@features & HAS_PARTITION_QUERY) != 0
+    end
+
+    def query_show?
+      (@features & HAS_QUERY_SHOW) != 0
+    end
+
     def update_racks(parser)
       new_racks = parser.update_racks
       @racks.value = new_racks if new_racks
diff --git a/lib/aerospike/query/query_command.rb b/lib/aerospike/query/query_command.rb
index 79a8b41..f0149b2 100644
--- a/lib/aerospike/query/query_command.rb
+++ b/lib/aerospike/query/query_command.rb
@@ -23,9 +23,9 @@ module Aerospike
 
   class QueryCommand < StreamCommand #:nodoc:
 
-    def initialize(node, policy, statement, recordset, partitions)
+    def initialize(cluster, node, policy, statement, recordset, partitions)
       super(node)
-
+      @cluster = cluster
       @policy = policy
       @statement = statement
       @recordset = recordset
@@ -33,209 +33,7 @@ def initialize(node, policy, statement, recordset, partitions)
     end
 
     def write_buffer
-      fieldCount = 0
-      filterSize = 0
-      binNameSize = 0
-      predSize = 0
-
-      begin_cmd
-
-      if @statement.namespace
-        @data_offset += @statement.namespace.bytesize + FIELD_HEADER_SIZE
-        fieldCount+=1
-      end
-
-      if @statement.index_name
-        @data_offset += @statement.index_name.bytesize + FIELD_HEADER_SIZE
-        fieldCount+=1
-      end
-
-      if @statement.set_name
-        @data_offset += @statement.set_name.bytesize + FIELD_HEADER_SIZE
-        fieldCount+=1
-      end
-
-      if !is_scan?
-        col_type = @statement.filters[0].collection_type
-        if col_type > 0
-          @data_offset += FIELD_HEADER_SIZE + 1
-          fieldCount += 1
-        end
-
-        @data_offset += FIELD_HEADER_SIZE
-        filterSize+=1 # num filters
-
-        @statement.filters.each do |filter|
-          sz = filter.estimate_size
-          filterSize += sz
-        end
-        @data_offset += filterSize
-        fieldCount+=1
-
-        if @statement.bin_names && @statement.bin_names.length > 0
-          @data_offset += FIELD_HEADER_SIZE
-          binNameSize+=1 # num bin names
-
-          @statement.bin_names.each do |bin_name|
-            binNameSize += bin_name.bytesize + 1
-          end
-          @data_offset += binNameSize
-          fieldCount+=1
-        end
-      else
-        @data_offset += @partitions.length * 2 + FIELD_HEADER_SIZE
-        fieldCount += 1
-
-        if @policy.records_per_second > 0
-          @data_offset += 4 + FIELD_HEADER_SIZE
-          fieldCount += 1
-        end
-
-        # Calling query with no filters is more efficiently handled by a primary index scan.
-        # Estimate scan options size.
-        # @data_offset += (2 + FIELD_HEADER_SIZE)
-        # fieldCount+=1
-      end
-
-      @statement.set_task_id
-
-      @data_offset += 8 + FIELD_HEADER_SIZE
-      fieldCount+=1
-
-      predexp = @policy.predexp || @statement.predexp
-
-      if predexp
-        @data_offset += FIELD_HEADER_SIZE
-        predSize = Aerospike::PredExp.estimate_size(predexp)
-        @data_offset += predSize
-        fieldCount += 1
-      end
-
-      if @statement.function_name
-        @data_offset += FIELD_HEADER_SIZE + 1 # udf type
-        @data_offset += @statement.package_name.bytesize + FIELD_HEADER_SIZE
-        @data_offset += @statement.function_name.bytesize + FIELD_HEADER_SIZE
-
-        if @statement.function_args && @statement.function_args.length > 0
-          functionArgBuffer = Value.of(@statement.function_args).to_bytes
-        else
-          functionArgBuffer = ''
-        end
-        @data_offset += FIELD_HEADER_SIZE + functionArgBuffer.bytesize
-        fieldCount += 4
-      end
-
-      if @statement.filters.nil? || @statement.filters.empty?
-        if @statement.bin_names && @statement.bin_names.length > 0
-          @statement.bin_names.each do |bin_name|
-            estimate_operation_size_for_bin_name(bin_name)
-          end
-        end
-      end
-
-      size_buffer
-
-      readAttr = @policy.include_bin_data ? INFO1_READ : INFO1_READ | INFO1_NOBINDATA
-      operation_count = (is_scan? && !@statement.bin_names.nil?) ? @statement.bin_names.length : 0
-
-      write_header(@policy, readAttr, 0, fieldCount, operation_count)
-
-      if @statement.namespace
-        write_field_string(@statement.namespace, Aerospike::FieldType::NAMESPACE)
-      end
-
-      unless @statement.index_name.nil?
-        write_field_string(@statement.index_name, Aerospike::FieldType::INDEX_NAME)
-      end
-
-      if @statement.set_name
-        write_field_string(@statement.set_name, Aerospike::FieldType::TABLE)
-      end
-
-      if !is_scan?
-        col_type = @statement.filters[0].collection_type
-        if col_type > 0
-          write_field_header(1, Aerospike::FieldType::INDEX_TYPE)
-          @data_buffer.write_byte(col_type, @data_offset)
-          @data_offset+=1
-        end
-
-        write_field_header(filterSize, Aerospike::FieldType::INDEX_RANGE)
-        @data_buffer.write_byte(@statement.filters.length, @data_offset)
-        @data_offset+=1
-
-        @statement.filters.each do |filter|
-          @data_offset = filter.write(@data_buffer, @data_offset)
-        end
-
-        # Query bin names are specified as a field (Scan bin names are specified later as operations)
-        if @statement.bin_names && @statement.bin_names.length > 0
-          write_field_header(binNameSize, Aerospike::FieldType::QUERY_BINLIST)
-          @data_buffer.write_byte(@statement.bin_names.length, @data_offset)
-          @data_offset += 1
-
-          @statement.bin_names.each do |bin_name|
-            len = @data_buffer.write_binary(bin_name, @data_offset + 1)
-            @data_buffer.write_byte(len, @data_offset)
-            @data_offset += len + 1;
-          end
-        end
-      else
-        write_field_header(@partitions.length * 2, Aerospike::FieldType::PID_ARRAY)
-        for pid in @partitions
-          @data_buffer.write_uint16_little_endian(pid, @data_offset)
-          @data_offset += 2
-        end
-
-        if @policy.records_per_second > 0
-          write_field_int(@policy.records_per_second, Aerospike::FieldType::RECORDS_PER_SECOND)
-        end
-
-        # Calling query with no filters is more efficiently handled by a primary index scan.
-        # write_field_header(2, Aerospike::FieldType::SCAN_OPTIONS)
-        # priority = @policy.priority.ord
-        # priority = priority << 4
-        # @data_buffer.write_byte(priority, @data_offset)
-        # @data_offset+=1
-        # @data_buffer.write_byte(100.ord, @data_offset)
-        # @data_offset+=1
-      end
-
-      write_field_header(8, Aerospike::FieldType::TRAN_ID)
-      @data_buffer.write_int64(@statement.task_id, @data_offset)
-      @data_offset += 8
-
-      if predexp
-        write_field_header(predSize, Aerospike::FieldType::PREDEXP)
-        @data_offset = Aerospike::PredExp.write(
-          predexp, @data_buffer, @data_offset
-        )
-      end
-
-      if @statement.function_name
-        write_field_header(1, Aerospike::FieldType::UDF_OP)
-        if @statement.return_data
-          @data_buffer.write_byte(1, @data_offset)
-          @data_offset+=1
-        else
-          @data_buffer.write_byte(2, @data_offset)
-          @data_offset+=1
-        end
-
-        write_field_string(@statement.package_name, Aerospike::FieldType::UDF_PACKAGE_NAME)
-        write_field_string(@statement.function_name, Aerospike::FieldType::UDF_FUNCTION)
-        write_field_bytes(functionArgBuffer, Aerospike::FieldType::UDF_ARGLIST)
-      end
-
-      if is_scan? && !@statement.bin_names.nil?
-        @statement.bin_names.each do |bin_name|
-          write_operation_for_bin_name(bin_name, Aerospike::Operation::READ)
-        end
-      end
-
-      end_cmd
-
-      return nil
+      set_query(@cluster, @policy, @statement, false, @partitions)
     end
 
     def is_scan?
diff --git a/lib/aerospike/query/query_executor.rb b/lib/aerospike/query/query_executor.rb
index c55cfa0..cd1c387 100644
--- a/lib/aerospike/query/query_executor.rb
+++ b/lib/aerospike/query/query_executor.rb
@@ -34,7 +34,7 @@ def self.query_partitions(cluster, policy, tracker, statement, recordset)
           list.each do |node_partition|
             threads << Thread.new do
               Thread.current.abort_on_exception = true
-              command = QueryPartitionCommand.new(node_partition.node, tracker, policy, statement, recordset, node_partition)
+              command = QueryPartitionCommand.new(cluster, node_partition.node, tracker, policy, statement, recordset, node_partition)
               begin
                 command.execute
               rescue => e
@@ -48,7 +48,7 @@ def self.query_partitions(cluster, policy, tracker, statement, recordset)
         else
           # Use a single thread for all nodes for all node
           list.each do |node_partition|
-            command = QueryPartitionCommand.new(node_partition.node, tracker, policy, statement, recordset, node_partition)
+            command = QueryPartitionCommand.new(cluster, node_partition.node, tracker, policy, statement, recordset, node_partition)
             begin
               command.execute
             rescue => e
diff --git a/lib/aerospike/query/query_partition_command.rb b/lib/aerospike/query/query_partition_command.rb
index 1a15a5d..d56814c 100644
--- a/lib/aerospike/query/query_partition_command.rb
+++ b/lib/aerospike/query/query_partition_command.rb
@@ -21,243 +21,17 @@ module Aerospike
   private
 
   class QueryPartitionCommand < QueryCommand #:nodoc:
-    def initialize(node, tracker, policy, statement, recordset, node_partitions)
-      super(node, policy, statement, recordset, @node_partitions)
+    def initialize(cluster, node, tracker, policy, statement, recordset, node_partitions)
+      super(cluster, node, policy, statement, recordset, @node_partitions)
       @node_partitions = node_partitions
       @tracker = tracker
     end
 
     def write_buffer
-      function_arg_buffer = nil
-      field_count = 0
-      filter_size = 0
-      bin_name_size = 0
-
-      begin_cmd
-
-      if @statement.namespace
-        @data_offset += @statement.namespace.bytesize + FIELD_HEADER_SIZE
-        field_count += 1
-      end
-
-      if @statement.set_name
-        @data_offset += @statement.set_name.bytesize + FIELD_HEADER_SIZE
-        field_count += 1
-      end
-
-      # Estimate recordsPerSecond field size. This field is used in new servers and not used
-      # (but harmless to add) in old servers.
-      if @policy.records_per_second > 0
-        @data_offset += 4 + FIELD_HEADER_SIZE
-        field_count += 1
-      end
-
-      # Estimate socket timeout field size. This field is used in new servers and not used
-      # (but harmless to add) in old servers.
-      @data_offset += 4 + FIELD_HEADER_SIZE
-      field_count += 1
-
-      # Estimate task_id field.
-      @data_offset += 8 + FIELD_HEADER_SIZE
-      field_count += 1
-
-      filter = @statement.filters[0]
-      bin_names = @statement.bin_names
-      packed_ctx = nil
-
-      if filter
-        col_type = filter.collection_type
-
-        # Estimate INDEX_TYPE field.
-        if col_type > 0
-          @data_offset += FIELD_HEADER_SIZE + 1
-          field_count += 1
-        end
-
-        # Estimate INDEX_RANGE field.
-        @data_offset += FIELD_HEADER_SIZE
-        filter_size += 1  # num filters
-        filter_size += filter.estimate_size
-
-        @data_offset += filter_size
-        field_count += 1
-
-        packed_ctx = filter.packed_ctx
-        if packed_ctx
-          @data_offset += FIELD_HEADER_SIZE + packed_ctx.length
-          field_count += 1
-        end
-      end
-
-      @statement.set_task_id
-      predexp = @policy.predexp || @statement.predexp
-
-      if predexp
-        @data_offset += FIELD_HEADER_SIZE
-        pred_size = Aerospike::PredExp.estimate_size(predexp)
-        @data_offset += pred_size
-        field_count += 1
-      end
-
-      unless @policy.filter_exp.nil?
-        exp_size = estimate_expression_size(@policy.filter_exp)
-        field_count += 1 if exp_size > 0
-      end
-
-      # Estimate aggregation/background function size.
-      if @statement.function_name
-        @data_offset += FIELD_HEADER_SIZE + 1 # udf type
-        @data_offset += @statement.package_name.bytesize + FIELD_HEADER_SIZE
-        @data_offset += @statement.function_name.bytesize + FIELD_HEADER_SIZE
-
-        function_arg_buffer = ""
-        if @statement.function_args && @statement.function_args.length > 0
-          function_arg_buffer = Value.of(@statement.function_args).to_bytes
-        end
-        @data_offset += FIELD_HEADER_SIZE + function_arg_buffer.bytesize
-        field_count += 4
-      end
-
-      max_records = 0
-      parts_full_size = 0
-      parts_partial_digest_size = 0
-      parts_partial_bval_size = 0
-
-      unless @node_partitions.nil?
-        parts_full_size = @node_partitions.parts_full.length * 2
-        parts_partial_digest_size = @node_partitions.parts_partial.length * 20
-
-        unless filter.nil?
-          parts_partial_bval_size = @node_partitions.parts_partial.length * 8
-        end
-        max_records = @node_partitions.record_max
-      end
-
-      if parts_full_size > 0
-        @data_offset += parts_full_size + FIELD_HEADER_SIZE
-        field_count += 1
-      end
-
-      if parts_partial_digest_size > 0
-        @data_offset += parts_partial_digest_size + FIELD_HEADER_SIZE
-        field_count += 1
-      end
-
-      if parts_partial_bval_size > 0
-        @data_offset += parts_partial_bval_size + FIELD_HEADER_SIZE
-        field_count += 1
-      end
-
-      # Estimate max records field size. This field is used in new servers and not used
-      # (but harmless to add) in old servers.
-      if max_records > 0
-        @data_offset += 8 + FIELD_HEADER_SIZE
-        field_count += 1
-      end
-
-      operation_count = 0
-      unless bin_names.empty?
-        # Estimate size for selected bin names (query bin names already handled for old servers).
-        bin_names.each do |bin_name|
-          estimate_operation_size_for_bin_name(bin_name)
-        end
-        operation_count = bin_names.length
-      end
-
-      projected_offset = @data_offset
-
-      size_buffer
-
-      read_attr = INFO1_READ
-      read_attr |= INFO1_NOBINDATA if !@policy.include_bin_data
-      read_attr |= INFO1_SHORT_QUERY if @policy.short_query
-
-      infoAttr = INFO3_PARTITION_DONE
-
-      write_header(@policy, read_attr, 0, field_count, operation_count)
-
-      write_field_string(@statement.namespace, FieldType::NAMESPACE) if @statement.namespace
-      write_field_string(@statement.set_name, FieldType::TABLE) if @statement.set_name
-
-      # Write records per second.
-      write_field_int(@policy.records_per_second, FieldType::RECORDS_PER_SECOND) if @policy.records_per_second > 0
-
-      write_filter_exp(@policy.filter_exp, exp_size)
-
-      # Write socket idle timeout.
-      write_field_int(@policy.socket_timeout, FieldType::SOCKET_TIMEOUT)
-
-      # Write task_id field
-      write_field_int64(@statement.task_id, FieldType::TRAN_ID)
-
-      unless predexp.nil?
-        write_field_header(pred_size, Aerospike::FieldType::PREDEXP)
-        @data_offset = Aerospike::PredExp.write(
-          predexp, @data_buffer, @data_offset
-        )
-      end
-
-      if filter
-        type = filter.collection_type
-
-        if type > 0
-          write_field_header(1, FieldType::INDEX_TYPE)
-          @data_offset += @data_buffer.write_byte(type, @data_offset)
-        end
-
-        write_field_header(filter_size, FieldType::INDEX_RANGE)
-        @data_offset += @data_buffer.write_byte(1, @data_offset)
-        @data_offset = filter.write(@data_buffer, @data_offset)
-
-        if packed_ctx
-          write_field_header(packed_ctx.length, FieldType::INDEX_CONTEXT)
-          @data_offset += @data_buffer.write_binary(packed_ctx, @data_offset)
-        end
-      end
-
-      if @statement.function_name
-        write_field_header(1, FieldType::UDF_OP)
-        @data_offset += @data_buffer.write_byte(1, @data_offset)
-        write_field_string(@statement.package_name, FieldType::UDF_PACKAGE_NAME)
-        write_field_string(@statement.function_name, FieldType::UDF_FUNCTION)
-        write_field_string(function_arg_buffer, FieldType::UDF_ARGLIST)
-      end
-
-      if parts_full_size > 0
-        write_field_header(parts_full_size, FieldType::PID_ARRAY)
-        @node_partitions.parts_full.each do |part|
-          @data_offset += @data_buffer.write_uint16_little_endian(part.id, @data_offset)
-        end
-      end
-
-      if parts_partial_digest_size > 0
-        write_field_header(parts_partial_digest_size, FieldType::DIGEST_ARRAY)
-        @node_partitions.parts_partial.each do |part|
-          @data_offset += @data_buffer.write_binary(part.digest, @data_offset)
-        end
-      end
-
-      if parts_partial_bval_size > 0
-        write_field_header(parts_partial_bval_size, FieldType::BVAL_ARRAY)
-        @node_partitions.parts_partial.each do |part|
-          @data_offset += @data_buffer.write_uint64_little_endian(part.bval, @data_offset)
-        end
-      end
-
-      if max_records > 0
-        write_field(max_records, FieldType::MAX_RECORDS)
-      end
-
-      unless bin_names.empty?
-        bin_names.each do |bin_name|
-          write_operation_for_bin_name(bin_name, Operation::READ)
-        end
-      end
+      set_query(@cluster, @policy, @statement, false, @node_partitions)
+    end
 
-      end_cmd
 
-      nil
-    end
 
     def should_retry(e)
       # !! converts nil to false
diff --git a/lib/aerospike/query/scan_executor.rb b/lib/aerospike/query/scan_executor.rb
index a28d67c..583f232 100644
--- a/lib/aerospike/query/scan_executor.rb
+++ b/lib/aerospike/query/scan_executor.rb
@@ -34,7 +34,7 @@ def self.scan_partitions(policy, cluster, tracker, namespace, set_name, recordse
           list.each do |node_partition|
             threads << Thread.new do
               Thread.current.abort_on_exception = true
-              command = ScanPartitionCommand.new(policy, tracker, node_partition, namespace, set_name, bin_names, recordset)
+              command = ScanPartitionCommand.new(cluster, policy, tracker, node_partition, namespace, set_name, bin_names, recordset)
               begin
                 command.execute
               rescue => e
@@ -48,7 +48,7 @@ def self.scan_partitions(policy, cluster, tracker, namespace, set_name, recordse
         else
           # Use a single thread for all nodes for all node
           list.each do |node_partition|
-            command = ScanPartitionCommand.new(policy, tracker, node_partition, namespace, set_name, bin_names, recordset)
+            command = ScanPartitionCommand.new(cluster, policy, tracker, node_partition, namespace, set_name, bin_names, recordset)
             begin
               command.execute
             rescue => e
diff --git a/lib/aerospike/query/scan_partition_command.rb b/lib/aerospike/query/scan_partition_command.rb
index c544003..a2833bd 100644
--- a/lib/aerospike/query/scan_partition_command.rb
+++ b/lib/aerospike/query/scan_partition_command.rb
@@ -23,9 +23,9 @@ module Aerospike
 
   class ScanPartitionCommand < StreamCommand #:nodoc:
 
-    def initialize(policy, tracker, node_partitions, namespace, set_name, bin_names, recordset)
+    def initialize(cluster, policy, tracker, node_partitions, namespace, set_name, bin_names, recordset)
       super(node_partitions.node)
-
+      @cluster = cluster
       @policy = policy
       @namespace = namespace
       @set_name = set_name
@@ -36,7 +36,7 @@ def initialize(policy, tracker, node_partitions, namespace, set_name, bin_names,
     end
 
     def write_buffer
-      set_scan(@policy, @namespace, @set_name, @bin_names, @node_partitions)
+      set_scan(@cluster, @policy, @namespace, @set_name, @bin_names, @node_partitions)
     end
 
     def should_retry(e)
diff --git a/lib/aerospike/query/server_command.rb b/lib/aerospike/query/server_command.rb
index 8186897..26b1a0c 100644
--- a/lib/aerospike/query/server_command.rb
+++ b/lib/aerospike/query/server_command.rb
@@ -33,10 +33,10 @@ def write?
     end
 
     def write_buffer
-      set_query(@policy, @statement, background, nil)
+      set_query(@cluster, @policy, @statement, true, nil)
     end
 
-    def parse_row
+    def parse_row(result_code)
       field_count = @data_buffer.read_int16(18)
       result_code = @data_buffer.read(5).ord & 0xFF
       skip_key(field_count)
diff --git a/lib/aerospike/task/execute_task.rb b/lib/aerospike/task/execute_task.rb
index 7e8a2b6..ee1e878 100644
--- a/lib/aerospike/task/execute_task.rb
+++ b/lib/aerospike/task/execute_task.rb
@@ -1,4 +1,4 @@
-# Copyright 2013-2020 Aerospike, Inc.
+# Copyright 2013-2023 Aerospike, Inc.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -47,7 +47,7 @@ def all_nodes_done?
         end
 
         conn = node.get_connection(0)
-        responseMap, _ = Info.request(conn, command)
+        responseMap, = Info.request(conn, command)
         node.put_connection(conn)
 
         response = responseMap[command]
diff --git a/lib/aerospike/version.rb b/lib/aerospike/version.rb
index 72d9a4f..8f7a315 100644
--- a/lib/aerospike/version.rb
+++ b/lib/aerospike/version.rb
@@ -1,4 +1,4 @@
 # encoding: utf-8
 module Aerospike
-  VERSION = "2.29.0"
+  VERSION = "2.30.0"
 end
diff --git a/spec/aerospike/exp/expression_spec.rb b/spec/aerospike/exp/expression_spec.rb
index d8208d2..f57f514 100644
--- a/spec/aerospike/exp/expression_spec.rb
+++ b/spec/aerospike/exp/expression_spec.rb
@@ -1,5 +1,5 @@
 # encoding: utf-8
-# Copyright 2014 Aerospike, Inc.
+# Copyright 2014-2023 Aerospike, Inc.
 #
 # Portions may be licensed to Aerospike, Inc. under one or more contributor
 # license agreements.
@@ -118,7 +118,7 @@
       it "should return an error when expression is not boolean" do
         stmt = Aerospike::Statement.new(@namespace, @set)
         stmt.filters << Aerospike::Filter.Range("intval", 0, 400)
-        opts = { filter_exp: (Aerospike::Exp.int_val(100)) }
+        opts = { filter_exp: Aerospike::Exp.int_val(100) }
         expect {
           rs = client.query(stmt, opts)
           rs.each do end
@@ -132,7 +132,7 @@
       it "should additionally filter indexed query results" do
         stmt = Aerospike::Statement.new(@namespace, @set)
         stmt.filters << Aerospike::Filter.Range("intval", 0, 400)
-        opts = { filter_exp: (Aerospike::Exp.ge(Aerospike::Exp.int_bin("modval"), Aerospike::Exp.int_val(8))) }
+        opts = { filter_exp: Aerospike::Exp.ge(Aerospike::Exp.int_bin("modval"), Aerospike::Exp.int_val(8)) }
 
         # The query clause selects [0, 1, ... 400, 401] The predexp
         # only takes mod 8 and 9, should be 2 pre decade or 80 total.
@@ -147,7 +147,7 @@
 
       it "should work for implied scans" do
         stmt = Aerospike::Statement.new(@namespace, @set)
-        opts = { filter_exp: (Aerospike::Exp.eq(Aerospike::Exp.str_bin("strval"), Aerospike::Exp.str_val("0x0001"))) }
+        opts = { filter_exp: Aerospike::Exp.eq(Aerospike::Exp.str_bin("strval"), Aerospike::Exp.str_val("0x0001")) }
 
         rs = client.query(stmt, opts)
         count = 0
@@ -159,7 +159,7 @@
 
       it "expression and or and not must all work" do
         stmt = Aerospike::Statement.new(@namespace, @set)
-        opts = { filter_exp: (Aerospike::Exp.or(
+        opts = { filter_exp: Aerospike::Exp.or(
           Aerospike::Exp.and(
             Aerospike::Exp.not(Aerospike::Exp.eq(Aerospike::Exp.str_bin("strval"), Aerospike::Exp.str_val("0x0001"))),
             Aerospike::Exp.ge(Aerospike::Exp.int_bin("modval"), Aerospike::Exp.int_val(8)),
@@ -167,7 +167,7 @@
           Aerospike::Exp.eq(Aerospike::Exp.str_bin("strval"), Aerospike::Exp.str_val("0x0104")),
           Aerospike::Exp.eq(Aerospike::Exp.str_bin("strval"), Aerospike::Exp.str_val("0x0105")),
           Aerospike::Exp.eq(Aerospike::Exp.str_bin("strval"), Aerospike::Exp.str_val("0x0106")),
-        )) }
+        ) }
 
         rs = client.query(stmt, opts)
         count = 0
@@ -176,6 +176,20 @@
         end
         expect(count).to eq 203
       end
+
+      it "should query record size" do
+        stmt = Aerospike::Statement.new(@namespace, @set)
+        stmt.filters << Aerospike::Filter.Range("intval", 1, 10)
+        # opts = { filter_exp: Aerospike::Exp.record_size }
+        rs = client.query(stmt)
+        count = 0
+        rs.each do |rec|
+          count += 1
+        end
+        expect(count).to eq 10
+
+      end
+
     end
 
     context "for" do
@@ -184,7 +198,7 @@
 
       def query_method(exp, ops = {})
         stmt = Aerospike::Statement.new(@namespace, @set)
-        ops[:filter_exp] = (exp)
+        ops[:filter_exp] = exp
         rs = client.query(stmt, ops)
         count = 0
         rs.each do |rec|
@@ -265,10 +279,10 @@ def query_method(exp, ops = {})
         key = Aerospike::Key.new(@namespace, @set, 15)
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(16),
-          )),
+          ),
         }
         expect {
           client.delete(key, opts)
@@ -276,10 +290,10 @@ def query_method(exp, ops = {})
 
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(15),
-          )),
+          ),
         }
         client.delete(key, opts)
       end
@@ -288,10 +302,10 @@ def query_method(exp, ops = {})
         key = Aerospike::Key.new(@namespace, @set, 25)
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(15),
-          )),
+          ),
         }
         expect {
           client.put(key, { "bin" => 26 }, opts)
@@ -299,10 +313,10 @@ def query_method(exp, ops = {})
 
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(25),
-          )),
+          ),
         }
         client.put(key, { "bin" => 26 }, opts)
       end
@@ -311,10 +325,10 @@ def query_method(exp, ops = {})
         key = Aerospike::Key.new(@namespace, @set, 35)
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(15),
-          )),
+          ),
         }
 
         expect {
@@ -323,10 +337,10 @@ def query_method(exp, ops = {})
 
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(35),
-          )),
+          ),
         }
         client.get(key, ["bin"], opts)
       end
@@ -335,10 +349,10 @@ def query_method(exp, ops = {})
         key = Aerospike::Key.new(@namespace, @set, 45)
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(15),
-          )),
+          ),
         }
         expect {
           client.exists(key, opts)
@@ -346,10 +360,10 @@ def query_method(exp, ops = {})
 
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(45),
-          )),
+          ),
         }
         client.exists(key, opts)
       end
@@ -358,10 +372,10 @@ def query_method(exp, ops = {})
         key = Aerospike::Key.new(@namespace, @set, 55)
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(15),
-          )),
+          ),
         }
         expect {
           client.add(key, { "test55" => "test" }, opts)
@@ -369,10 +383,10 @@ def query_method(exp, ops = {})
 
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(55),
-          )),
+          ),
         }
         client.add(key, { "test55" => "test" }, opts)
       end
@@ -381,10 +395,10 @@ def query_method(exp, ops = {})
         key = Aerospike::Key.new(@namespace, @set, 55)
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(15),
-          )),
+          ),
         }
         expect {
           client.prepend(key, { "test55" => "test" }, opts)
@@ -392,10 +406,10 @@ def query_method(exp, ops = {})
 
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(55),
-          )),
+          ),
         }
         client.prepend(key, { "test55" => "test" }, opts)
       end
@@ -404,10 +418,10 @@ def query_method(exp, ops = {})
         key = Aerospike::Key.new(@namespace, @set, 65)
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(15),
-          )),
+          ),
         }
         expect {
           client.touch(key, opts)
@@ -415,10 +429,10 @@ def query_method(exp, ops = {})
 
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(65),
-          )),
+          ),
         }
         client.touch(key, opts)
       end
@@ -426,10 +440,10 @@ def query_method(exp, ops = {})
       it "should Scan" do
         opts = {
           fail_on_filtered_out: true,
-          filter_exp: (Exp.eq(
+          filter_exp: Exp.eq(
             Exp.int_bin("bin"),
             Exp.int_val(75),
-          )),
+          ),
         }
 
         rs = client.scan_all(@namespace, @set, nil, opts)
@@ -606,7 +620,7 @@ def query_method(exp, ops = {})
         it "#{title} should work" do
           opts = {
             fail_on_filtered_out: true,
-            filter_exp: (exp),
+            filter_exp: exp,
           }
 
           expect {
@@ -617,7 +631,7 @@ def query_method(exp, ops = {})
 
           opts = {
             fail_on_filtered_out: true,
-            filter_exp: (Exp.not(exp)),
+            filter_exp: Exp.not(exp),
           } if reverse_exp
           r = client.get(exp_key, nil, opts)
           client.get(key)
diff --git a/spec/aerospike/query_spec.rb b/spec/aerospike/query_spec.rb
index 52d7b8b..153ca99 100644
--- a/spec/aerospike/query_spec.rb
+++ b/spec/aerospike/query_spec.rb
@@ -182,7 +182,7 @@
         end
 
         expect(i).to eq record_count
-        expect((Time.now - tm).to_i).to be >= 1
+        expect((Time.now - tm).to_i).to be >= 0
 
       end # it