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Diffstat (limited to 'mysql-test/main/type_hex_hybrid.test')
| -rw-r--r-- | mysql-test/main/type_hex_hybrid.test | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/mysql-test/main/type_hex_hybrid.test b/mysql-test/main/type_hex_hybrid.test new file mode 100644 index 00000000000..a39750e2635 --- /dev/null +++ b/mysql-test/main/type_hex_hybrid.test @@ -0,0 +1,21 @@ +--echo # +--echo # Start of 10.4 tests +--echo # + +--echo # +--echo # MDEV-16426 Optimizer erroneously treats equal constants of different formats as same +--echo # + +# It's important for CHARSET('a') and CHARSET(0x61) to have different lengths in this test. +# 'latin1' and 'binary' have same lengths, so using 'utf8'. +SET NAMES utf8; +CREATE TABLE t1 (a DECIMAL(10,3)); +INSERT INTO t1 VALUES (10.0),(10.1); +SELECT CHARSET('a'),CHARSET(0x61),LENGTH(CHARSET('a'))+a,LENGTH(CHARSET(0x61))+a FROM t1; +SELECT * FROM t1 WHERE LENGTH(CHARSET('a'))+a<=>LENGTH(CHARSET(0x61))+a; +EXPLAIN EXTENDED SELECT * FROM t1 WHERE LENGTH(CHARSET('a'))+a<=>LENGTH(CHARSET(0x61))+a; +DROP TABLE t1; + +--echo # +--echo # End of 10.4 tests +--echo # |