From 41aaf075370a01dcfeda649a5c072e7746a48cb1 Mon Sep 17 00:00:00 2001
From: Alexander Gololobov <davenger@clickhouse.com>
Date: Tue, 10 Sep 2024 14:17:57 +0200
Subject: [PATCH] Test materialize() on sparse columns

---
 .../01780_column_sparse_materialize.reference | 50 ++++++++++++++++++
 .../01780_column_sparse_materialize.sql       | 52 +++++++++++++++++++
 2 files changed, 102 insertions(+)
 create mode 100644 tests/queries/0_stateless/01780_column_sparse_materialize.reference
 create mode 100644 tests/queries/0_stateless/01780_column_sparse_materialize.sql

diff --git a/tests/queries/0_stateless/01780_column_sparse_materialize.reference b/tests/queries/0_stateless/01780_column_sparse_materialize.reference
new file mode 100644
index 00000000000..660cfabff33
--- /dev/null
+++ b/tests/queries/0_stateless/01780_column_sparse_materialize.reference
@@ -0,0 +1,50 @@
+-- { echoOn }
+
+SELECT dumpColumnStructure(id) FROM sparse_t;
+UInt64, Sparse(size = 2, UInt64(size = 2), UInt64(size = 1))
+UInt64, Sparse(size = 2, UInt64(size = 2), UInt64(size = 1))
+SELECT dumpColumnStructure(materialize(id)) FROM sparse_t;
+UInt64, UInt64(size = 2)
+UInt64, UInt64(size = 2)
+SELECT dumpColumnStructure(u) FROM sparse_t;
+UInt64, Sparse(size = 2, UInt64(size = 1), UInt64(size = 0))
+UInt64, Sparse(size = 2, UInt64(size = 1), UInt64(size = 0))
+SELECT dumpColumnStructure(materialize(u)) FROM sparse_t;
+UInt64, UInt64(size = 2)
+UInt64, UInt64(size = 2)
+SELECT dumpColumnStructure(s) FROM sparse_t;
+String, Sparse(size = 2, String(size = 2), UInt64(size = 1))
+String, Sparse(size = 2, String(size = 2), UInt64(size = 1))
+SELECT dumpColumnStructure(materialize(s)) FROM sparse_t;
+String, String(size = 2)
+String, String(size = 2)
+SELECT dumpColumnStructure(arr1) FROM sparse_t;
+Array(String), Array(size = 2, UInt64(size = 2), String(size = 1))
+Array(String), Array(size = 2, UInt64(size = 2), String(size = 1))
+SELECT dumpColumnStructure(materialize(arr1)) FROM sparse_t;
+Array(String), Array(size = 2, UInt64(size = 2), String(size = 1))
+Array(String), Array(size = 2, UInt64(size = 2), String(size = 1))
+SELECT dumpColumnStructure(arr2) FROM sparse_t;
+Array(UInt64), Array(size = 2, UInt64(size = 2), UInt64(size = 1))
+Array(UInt64), Array(size = 2, UInt64(size = 2), UInt64(size = 1))
+SELECT dumpColumnStructure(materialize(arr2)) FROM sparse_t;
+Array(UInt64), Array(size = 2, UInt64(size = 2), UInt64(size = 1))
+Array(UInt64), Array(size = 2, UInt64(size = 2), UInt64(size = 1))
+SELECT dumpColumnStructure(t) FROM sparse_t;
+Tuple(a UInt64, s String), Tuple(size = 2, Sparse(size = 2, UInt64(size = 1), UInt64(size = 0)), Sparse(size = 2, String(size = 1), UInt64(size = 0)))
+Tuple(a UInt64, s String), Tuple(size = 2, Sparse(size = 2, UInt64(size = 1), UInt64(size = 0)), Sparse(size = 2, String(size = 1), UInt64(size = 0)))
+SELECT dumpColumnStructure(materialize(t)) FROM sparse_t;
+Tuple(a UInt64, s String), Tuple(size = 2, UInt64(size = 2), String(size = 2))
+Tuple(a UInt64, s String), Tuple(size = 2, UInt64(size = 2), String(size = 2))
+SELECT dumpColumnStructure(t.a) FROM sparse_t;
+UInt64, Sparse(size = 2, UInt64(size = 1), UInt64(size = 0))
+UInt64, Sparse(size = 2, UInt64(size = 1), UInt64(size = 0))
+SELECT dumpColumnStructure(materialize(t.a)) FROM sparse_t;
+UInt64, UInt64(size = 2)
+UInt64, UInt64(size = 2)
+SELECT dumpColumnStructure(t.s) FROM sparse_t;
+String, Sparse(size = 2, String(size = 1), UInt64(size = 0))
+String, Sparse(size = 2, String(size = 1), UInt64(size = 0))
+SELECT dumpColumnStructure(materialize(t.s)) FROM sparse_t;
+String, String(size = 2)
+String, String(size = 2)
diff --git a/tests/queries/0_stateless/01780_column_sparse_materialize.sql b/tests/queries/0_stateless/01780_column_sparse_materialize.sql
new file mode 100644
index 00000000000..a53ea140f0f
--- /dev/null
+++ b/tests/queries/0_stateless/01780_column_sparse_materialize.sql
@@ -0,0 +1,52 @@
+DROP TABLE IF EXISTS sparse_t;
+
+CREATE TABLE sparse_t (
+    id UInt64,
+    u UInt64,
+    s String,
+    arr1 Array(String),
+    arr2 Array(UInt64),
+    t Tuple(a UInt64, s String))
+ENGINE = MergeTree ORDER BY tuple()
+SETTINGS ratio_of_defaults_for_sparse_serialization = 0.1;
+
+INSERT INTO sparse_t SELECT
+    number,
+    if (number % 2 = 0, number, 0),
+    if (number % 2 = 0, toString(number), ''),
+    if (number % 2 = 0, [''], []),
+    if (number % 2 = 0, [0], []),
+    (if (number % 2 = 0, number, 0), '')
+FROM numbers(2);
+
+-- { echoOn }
+
+SELECT dumpColumnStructure(id) FROM sparse_t;
+SELECT dumpColumnStructure(materialize(id)) FROM sparse_t;
+
+SELECT dumpColumnStructure(u) FROM sparse_t;
+SELECT dumpColumnStructure(materialize(u)) FROM sparse_t;
+
+SELECT dumpColumnStructure(s) FROM sparse_t;
+SELECT dumpColumnStructure(materialize(s)) FROM sparse_t;
+
+SELECT dumpColumnStructure(arr1) FROM sparse_t;
+SELECT dumpColumnStructure(materialize(arr1)) FROM sparse_t;
+
+SELECT dumpColumnStructure(arr2) FROM sparse_t;
+SELECT dumpColumnStructure(materialize(arr2)) FROM sparse_t;
+
+SELECT dumpColumnStructure(t) FROM sparse_t;
+SELECT dumpColumnStructure(materialize(t)) FROM sparse_t;
+
+SELECT dumpColumnStructure(t.a) FROM sparse_t;
+SELECT dumpColumnStructure(materialize(t.a)) FROM sparse_t;
+
+SELECT dumpColumnStructure(t.s) FROM sparse_t;
+SELECT dumpColumnStructure(materialize(t.s)) FROM sparse_t;
+
+-- { echoOff }
+
+
+DROP TABLE IF EXISTS sparse_t
+;