diff --git a/dbms/src/Databases/DatabasesCommon.cpp b/dbms/src/Databases/DatabasesCommon.cpp
index d2164b5f5e9..73717acf507 100644
--- a/dbms/src/Databases/DatabasesCommon.cpp
+++ b/dbms/src/Databases/DatabasesCommon.cpp
@@ -35,7 +35,7 @@ String getTableDefinitionFromCreateQuery(const ASTPtr & query)
         create.select = nullptr;
 
     /// For "MATERIALIZED VIEW x TO y" it's necessary to save destination table
-    if (!(create.is_materialized_view && !create.storage))
+    if (!create.is_materialized_view || create.storage)
     {
         create.as_database.clear();
         create.as_table.clear();
diff --git a/dbms/src/Parsers/ParserCreateQuery.cpp b/dbms/src/Parsers/ParserCreateQuery.cpp
index ce97297258a..35b9781b2a6 100644
--- a/dbms/src/Parsers/ParserCreateQuery.cpp
+++ b/dbms/src/Parsers/ParserCreateQuery.cpp
@@ -364,6 +364,8 @@ bool ParserCreateQuery::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
         {
             to_table = true;
 
+            /// FIXME: as_table is ambiguous, it is set in AS clause also
+
             if (!name_p.parse(pos, as_table, expected))
                 return false;
 
diff --git a/dbms/src/Storages/StorageFactory.cpp b/dbms/src/Storages/StorageFactory.cpp
index 9ce1895b638..d6bcb9da42f 100644
--- a/dbms/src/Storages/StorageFactory.cpp
+++ b/dbms/src/Storages/StorageFactory.cpp
@@ -808,7 +808,7 @@ StoragePtr StorageFactory::get(
         merging_params.mode = MergeTreeData::MergingParams::Ordinary;
 
         const bool allow_extended_storage_def =
-            local_context.getSettingsRef().experimental_allow_extended_storage_definition_syntax;
+            attach || local_context.getSettingsRef().experimental_allow_extended_storage_definition_syntax;
 
         if (name_part == "Collapsing")
             merging_params.mode = MergeTreeData::MergingParams::Collapsing;
diff --git a/dbms/src/Storages/StorageMaterializedView.cpp b/dbms/src/Storages/StorageMaterializedView.cpp
index 403d80c641d..778dffdf42c 100644
--- a/dbms/src/Storages/StorageMaterializedView.cpp
+++ b/dbms/src/Storages/StorageMaterializedView.cpp
@@ -81,7 +81,7 @@ StorageMaterializedView::StorageMaterializedView(
             DatabaseAndTableName(database_name, table_name));
 
     // If the destination table is not set, use inner table
-    if (!query.storage)
+    if (!query.as_table.empty())
     {
         target_database_name = query.as_database;
         target_table_name = query.as_table;
diff --git a/dbms/tests/queries/0_stateless/00429_http_bufferization.sh b/dbms/tests/queries/0_stateless/00429_http_bufferization.sh
index 8946d798c7b..b47cbc5b00d 100755
--- a/dbms/tests/queries/0_stateless/00429_http_bufferization.sh
+++ b/dbms/tests/queries/0_stateless/00429_http_bufferization.sh
@@ -5,7 +5,8 @@ max_block_size=100
 URL='http://localhost:8123/'
 
 function query {
-    echo "SELECT toUInt8(intHash64(number)) FROM system.numbers LIMIT $1 FORMAT RowBinary"
+    # bash isn't able to store \0 bytes, so use [1; 255] random range
+    echo "SELECT greatest(toUInt8(1), toUInt8(intHash64(number))) FROM system.numbers LIMIT $1 FORMAT RowBinary"
 }
 
 function ch_url() {
@@ -81,13 +82,12 @@ check_cli_and_http
 
 
 # Check HTTP internal compression in normal case
-# Skip if clickhouse-compressor not installed
 
 function cmp_http_compression() {
     clickhouse-client -q "`query $1`" > res0
-    ch_url 'compress=1' $1 | clickhouse-compressor --decompress > res1
-    ch_url "compress=1&buffer_size=$2&wait_end_of_query=0" $1 | clickhouse-compressor --decompress > res2
-    ch_url "compress=1&buffer_size=$2&wait_end_of_query=1" $1 | clickhouse-compressor --decompress > res3
+    ch_url 'compress=1' $1 | clickhouse compressor --decompress > res1
+    ch_url "compress=1&buffer_size=$2&wait_end_of_query=0" $1 | clickhouse compressor --decompress > res2
+    ch_url "compress=1&buffer_size=$2&wait_end_of_query=1" $1 | clickhouse compressor --decompress > res3
     cmp res0 res1
     cmp res1 res2
     cmp res1 res3
@@ -103,8 +103,4 @@ function check_http_compression() {
     done
 }
 
-has_compressor=$(command -v clickhouse-compressor &>/dev/null && echo 1 || echo 0)
-
-if [[ $has_compressor -eq 1 ]]; then
-    check_http_compression
-fi
+check_http_compression
diff --git a/dbms/tests/queries/0_stateless/00508_materialized_view_to.sql b/dbms/tests/queries/0_stateless/00508_materialized_view_to.sql
index d2a819ec623..e327f131b23 100644
--- a/dbms/tests/queries/0_stateless/00508_materialized_view_to.sql
+++ b/dbms/tests/queries/0_stateless/00508_materialized_view_to.sql
@@ -3,7 +3,7 @@ DROP TABLE IF EXISTS test.dst;
 DROP TABLE IF EXISTS test.mv;
 
 CREATE TABLE test.src (x UInt8) ENGINE = Null;
-CREATE TABLE test.dst (x UInt8) ENGINE = Memory();
+CREATE TABLE test.dst (x UInt8) ENGINE = Memory;
 
 CREATE MATERIALIZED VIEW test.mv TO test.dst AS SELECT * FROM test.src;
 INSERT INTO test.src VALUES (1), (2);