From 0a4761a8fae8e9b9b938b2286951a35e4c053fe4 Mon Sep 17 00:00:00 2001
From: Nikita Vasilev <nekitvas@gmail.com>
Date: Thu, 9 May 2019 15:49:00 +0300
Subject: [PATCH] test for clear index

---
 .../00944_clear_index_in_partition.reference  |  4 ++
 .../00944_clear_index_in_partition.sh         | 43 +++++++++++++++++++
 2 files changed, 47 insertions(+)
 create mode 100644 dbms/tests/queries/0_stateless/00944_clear_index_in_partition.reference
 create mode 100755 dbms/tests/queries/0_stateless/00944_clear_index_in_partition.sh

diff --git a/dbms/tests/queries/0_stateless/00944_clear_index_in_partition.reference b/dbms/tests/queries/0_stateless/00944_clear_index_in_partition.reference
new file mode 100644
index 00000000000..c3e1b8bdb9a
--- /dev/null
+++ b/dbms/tests/queries/0_stateless/00944_clear_index_in_partition.reference
@@ -0,0 +1,4 @@
+5
+		"rows_read": 6,
+5
+		"rows_read": 10,
diff --git a/dbms/tests/queries/0_stateless/00944_clear_index_in_partition.sh b/dbms/tests/queries/0_stateless/00944_clear_index_in_partition.sh
new file mode 100755
index 00000000000..1d08f9facfc
--- /dev/null
+++ b/dbms/tests/queries/0_stateless/00944_clear_index_in_partition.sh
@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+
+CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+. $CURDIR/../shell_config.sh
+
+$CLICKHOUSE_CLIENT --query="DROP TABLE IF EXISTS test.minmax_idx;"
+
+
+$CLICKHOUSE_CLIENT -n --query="
+SET allow_experimental_data_skipping_indices=1;
+CREATE TABLE test.minmax_idx
+(
+    u64 UInt64,
+    i64 Int64,
+    i32 Int32,
+    INDEX idx (i64, u64 * i64) TYPE minmax GRANULARITY 1
+) ENGINE = MergeTree()
+PARTITION BY i32
+ORDER BY u64
+SETTINGS index_granularity = 2;"
+
+
+$CLICKHOUSE_CLIENT --query="INSERT INTO test.minmax_idx VALUES
+(0, 2, 1),
+(1, 1, 1),
+(2, 1, 1),
+(3, 1, 1),
+(4, 2, 3),
+(5, 2, 3),
+(6, 2, 2),
+(7, 2, 2),
+(8, 1, 2),
+(9, 1, 2)"
+
+$CLICKHOUSE_CLIENT --query="SELECT count() FROM test.minmax_idx WHERE i64 = 2;"
+$CLICKHOUSE_CLIENT --query="SELECT count() FROM test.minmax_idx WHERE i64 = 2 FORMAT JSON" | grep "rows_read"
+
+$CLICKHOUSE_CLIENT --query="ALTER TABLE test.minmax_idx CLEAR INDEX idx IN PARTITION 1;"
+
+$CLICKHOUSE_CLIENT --query="SELECT count() FROM test.minmax_idx WHERE i64 = 2;"
+$CLICKHOUSE_CLIENT --query="SELECT count() FROM test.minmax_idx WHERE i64 = 2 FORMAT JSON" | grep "rows_read"
+
+$CLICKHOUSE_CLIENT --query="DROP TABLE test.minmax_idx"