From 2a62d3f3ce30fdfc9be794016af5e49d569ae355 Mon Sep 17 00:00:00 2001
From: discord9 <55937128+discord9@users.noreply.github.com>
Date: Fri, 4 Sep 2026 17:10:32 +0800
Subject: [PATCH] test(compat): cover float SST encoding

Signed-off-by: discord9 <55937128+discord9@users.noreply.github.com>
---
 .../cases/downgrade_compatibility/case.toml       |  4 ++--
 .../cases/downgrade_compatibility/setup.sql       | 15 +++++++++++++++
 .../cases/downgrade_compatibility/verify.result   | 12 ++++++++++++
 .../cases/downgrade_compatibility/verify.sql      |  4 ++++
 .../sst_float_field_encoding_upgrade/case.toml    |  8 ++++++++
 .../sst_float_field_encoding_upgrade/setup.sql    | 13 +++++++++++++
 .../verify.result                                 | 11 +++++++++++
 .../sst_float_field_encoding_upgrade/verify.sql   |  3 +++
 8 files changed, 68 insertions(+), 2 deletions(-)
 create mode 100644 tests/compatibility/cases/sst_float_field_encoding_upgrade/case.toml
 create mode 100644 tests/compatibility/cases/sst_float_field_encoding_upgrade/setup.sql
 create mode 100644 tests/compatibility/cases/sst_float_field_encoding_upgrade/verify.result
 create mode 100644 tests/compatibility/cases/sst_float_field_encoding_upgrade/verify.sql

diff --git a/tests/compatibility/cases/downgrade_compatibility/case.toml b/tests/compatibility/cases/downgrade_compatibility/case.toml
index ba5ee5065ed..ab0496e523d 100644
--- a/tests/compatibility/cases/downgrade_compatibility/case.toml
+++ b/tests/compatibility/cases/downgrade_compatibility/case.toml
@@ -1,8 +1,8 @@
 name = "downgrade_compatibility"
-reason = "Verify v1.1.4 can reopen a table whose region WAL options were written by the current binary, and can read all rows of an append-only table flushed and compacted with preserve_row_sequence enabled."
+reason = "Verify v1.1.4 can reopen tables whose region WAL options or byte-stream-split (BSS) float SSTs were written by the current binary, and can read all rows of an append-only table flushed and compacted with preserve_row_sequence enabled."
 introduced_by = "fix: preserve legacy region WAL options format; preserve_row_sequence"
 topologies = ["distributed", "standalone"]
 from_range = [">=v1.2.0"]
 to_range = ["=v1.1.4"]
-features = ["table", "wal", "downgrade", "append", "preserve_row_sequence"]
+features = ["table", "wal", "downgrade", "append", "preserve_row_sequence", "sst", "float", "byte_stream_split"]
 owner = "metasrv"
diff --git a/tests/compatibility/cases/downgrade_compatibility/setup.sql b/tests/compatibility/cases/downgrade_compatibility/setup.sql
index a9415570d31..267466f9dfe 100644
--- a/tests/compatibility/cases/downgrade_compatibility/setup.sql
+++ b/tests/compatibility/cases/downgrade_compatibility/setup.sql
@@ -32,3 +32,18 @@ INSERT INTO t_preserve_sequence_downgrade VALUES
 ADMIN FLUSH_TABLE('t_preserve_sequence_downgrade');
 
 ADMIN COMPACT_TABLE('t_preserve_sequence_downgrade');
+
+CREATE TABLE t_sst_float_field_encoding_downgrade(
+    ts TIMESTAMP TIME INDEX,
+    host STRING PRIMARY KEY,
+    f FLOAT,
+    d DOUBLE
+) ENGINE=mito
+WITH('experimental_sst_float_field_encoding'='byte_stream_split');
+
+INSERT INTO t_sst_float_field_encoding_downgrade VALUES
+('2024-02-10 00:00:00+0000', 'host_a', 1.25, 10.5),
+('2024-02-10 00:01:00+0000', 'host_b', -2.5, 20.25),
+('2024-02-10 00:02:00+0000', 'host_c', NULL, NULL);
+
+ADMIN FLUSH_TABLE('t_sst_float_field_encoding_downgrade');
diff --git a/tests/compatibility/cases/downgrade_compatibility/verify.result b/tests/compatibility/cases/downgrade_compatibility/verify.result
index 3c052392927..ae1b9033a78 100644
--- a/tests/compatibility/cases/downgrade_compatibility/verify.result
+++ b/tests/compatibility/cases/downgrade_compatibility/verify.result
@@ -17,3 +17,15 @@ SELECT ts, host, val FROM t_preserve_sequence_downgrade ORDER BY ts, host;
 | 2024-02-09T00:02:00 | host_a | 3   |
 | 2024-02-09T00:03:00 | host_c | 4   |
 +---------------------+--------+-----+
+
+SELECT ts, host, f, d
+FROM t_sst_float_field_encoding_downgrade
+ORDER BY ts, host;
+
++---------------------+--------+------+------+
+| ts                  | host   | f    | d    |
++---------------------+--------+------+------+
+| 2024-02-10T00:00:00 | host_a | 1.25 | 10.5 |
+| 2024-02-10T00:01:00 | host_b | -2.5 | 20.25 |
+| 2024-02-10T00:02:00 | host_c |      |      |
++---------------------+--------+------+------+
diff --git a/tests/compatibility/cases/downgrade_compatibility/verify.sql b/tests/compatibility/cases/downgrade_compatibility/verify.sql
index 764968bf1b8..6b73c886117 100644
--- a/tests/compatibility/cases/downgrade_compatibility/verify.sql
+++ b/tests/compatibility/cases/downgrade_compatibility/verify.sql
@@ -1,3 +1,7 @@
 SELECT ts, host, val FROM t_downgrade_compatibility ORDER BY ts, host;
 
 SELECT ts, host, val FROM t_preserve_sequence_downgrade ORDER BY ts, host;
+
+SELECT ts, host, f, d
+FROM t_sst_float_field_encoding_downgrade
+ORDER BY ts, host;
diff --git a/tests/compatibility/cases/sst_float_field_encoding_upgrade/case.toml b/tests/compatibility/cases/sst_float_field_encoding_upgrade/case.toml
new file mode 100644
index 00000000000..4f008775bb2
--- /dev/null
+++ b/tests/compatibility/cases/sst_float_field_encoding_upgrade/case.toml
@@ -0,0 +1,8 @@
+name = "sst_float_field_encoding_upgrade"
+reason = "Verify newer binaries can read default-encoded Mito SSTs containing FLOAT and DOUBLE fields written by older binaries."
+introduced_by = "experimental_sst_float_field_encoding"
+topologies = ["distributed", "standalone"]
+from_range = ["*"]
+to_range = ["*"]
+features = ["table", "sst", "float", "upgrade"]
+owner = "storage"
diff --git a/tests/compatibility/cases/sst_float_field_encoding_upgrade/setup.sql b/tests/compatibility/cases/sst_float_field_encoding_upgrade/setup.sql
new file mode 100644
index 00000000000..a84b4339dfc
--- /dev/null
+++ b/tests/compatibility/cases/sst_float_field_encoding_upgrade/setup.sql
@@ -0,0 +1,13 @@
+CREATE TABLE t_sst_float_field_encoding_upgrade(
+    ts TIMESTAMP TIME INDEX,
+    host STRING PRIMARY KEY,
+    f FLOAT,
+    d DOUBLE
+) ENGINE=mito;
+
+INSERT INTO t_sst_float_field_encoding_upgrade VALUES
+('2024-02-10 00:00:00+0000', 'host_a', 1.25, 10.5),
+('2024-02-10 00:01:00+0000', 'host_b', -2.5, 20.25),
+('2024-02-10 00:02:00+0000', 'host_c', NULL, NULL);
+
+ADMIN FLUSH_TABLE('t_sst_float_field_encoding_upgrade');
diff --git a/tests/compatibility/cases/sst_float_field_encoding_upgrade/verify.result b/tests/compatibility/cases/sst_float_field_encoding_upgrade/verify.result
new file mode 100644
index 00000000000..51fa220430f
--- /dev/null
+++ b/tests/compatibility/cases/sst_float_field_encoding_upgrade/verify.result
@@ -0,0 +1,11 @@
+SELECT ts, host, f, d
+FROM t_sst_float_field_encoding_upgrade
+ORDER BY ts, host;
+
++---------------------+--------+------+------+
+| ts                  | host   | f    | d    |
++---------------------+--------+------+------+
+| 2024-02-10T00:00:00 | host_a | 1.25 | 10.5 |
+| 2024-02-10T00:01:00 | host_b | -2.5 | 20.25 |
+| 2024-02-10T00:02:00 | host_c |      |      |
++---------------------+--------+------+------+
diff --git a/tests/compatibility/cases/sst_float_field_encoding_upgrade/verify.sql b/tests/compatibility/cases/sst_float_field_encoding_upgrade/verify.sql
new file mode 100644
index 00000000000..81822cb0ac8
--- /dev/null
+++ b/tests/compatibility/cases/sst_float_field_encoding_upgrade/verify.sql
@@ -0,0 +1,3 @@
+SELECT ts, host, f, d
+FROM t_sst_float_field_encoding_upgrade
+ORDER BY ts, host;