add a test case

cmd/explaintest/t/explain_analyze.test

@@ -0,0 +1,46 @@
+CREATE DATABASE IF NOT EXISTS TPCH;
+USE TPCH;
+CREATE TABLE IF NOT EXISTS part  ( P_PARTKEY     INTEGER NOT NULL,
+                          P_NAME        VARCHAR(55) NOT NULL,
+                          P_MFGR        CHAR(25) NOT NULL,
+                          P_BRAND       CHAR(10) NOT NULL,
+                          P_TYPE        VARCHAR(25) NOT NULL,
+                          P_SIZE        INTEGER NOT NULL,
+                          P_CONTAINER   CHAR(10) NOT NULL,
+                          P_RETAILPRICE DECIMAL(15,2) NOT NULL,
+                          P_COMMENT     VARCHAR(23) NOT NULL,
+			  PRIMARY KEY (P_PARTKEY));
+
+CREATE TABLE IF NOT EXISTS supplier  ( S_SUPPKEY     INTEGER NOT NULL,
+                             S_NAME        CHAR(25) NOT NULL,
+                             S_ADDRESS     VARCHAR(40) NOT NULL,
+                             S_NATIONKEY   INTEGER NOT NULL,
+                             S_PHONE       CHAR(15) NOT NULL,
+                             S_ACCTBAL     DECIMAL(15,2) NOT NULL,
+                             S_COMMENT     VARCHAR(101) NOT NULL,
+			     PRIMARY KEY (S_SUPPKEY),
+			     CONSTRAINT FOREIGN KEY SUPPLIER_FK1 (S_NATIONKEY) references nation(N_NATIONKEY));
+
+CREATE TABLE IF NOT EXISTS partsupp ( PS_PARTKEY     INTEGER NOT NULL,
+                             PS_SUPPKEY     INTEGER NOT NULL,
+                             PS_AVAILQTY    INTEGER NOT NULL,
+                             PS_SUPPLYCOST  DECIMAL(15,2)  NOT NULL,
+                             PS_COMMENT     VARCHAR(199) NOT NULL,
+			     PRIMARY KEY (PS_PARTKEY,PS_SUPPKEY),
+			     CONSTRAINT FOREIGN KEY PARTSUPP_FK1 (PS_SUPPKEY) references supplier(S_SUPPKEY),
+			     CONSTRAINT FOREIGN KEY PARTSUPP_FK2 (PS_PARTKEY) references part(P_PARTKEY));
+-- load stats.
+load stats 's/tpch_stats/part.json';
+load stats 's/tpch_stats/supplier.json';
+load stats 's/tpch_stats/partsupp.json';
+set @@session.tidb_executor_concurrency = 5;
+
+explain analyze
+SELECT MIN(ps_supplycost) over (partition by p_partkey) as min_ps_supplycost,
+       MAX(ps_supplycost) over (partition by ps_suppkey) as max_ps_supplycost
+FROM tpch.part,
+     tpch.partsupp,
+     tpch.supplier
+WHERE p_partkey = ps_partkey
+  AND s_suppkey = ps_suppkey
+limit 10;