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Diffstat (limited to 'mysql-test/main/subselect4.result')
| -rw-r--r-- | mysql-test/main/subselect4.result | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/mysql-test/main/subselect4.result b/mysql-test/main/subselect4.result index 34a484f3b18..8c8471512cf 100644 --- a/mysql-test/main/subselect4.result +++ b/mysql-test/main/subselect4.result @@ -2585,6 +2585,30 @@ e 2 o 6 DROP TABLE t1, t2; # +# MDEV-19232: Floating point precision / value comparison problem +# +CREATE TABLE t1 (region varchar(60), area decimal(10,0), population decimal(11,0)); +INSERT INTO t1 VALUES ('Central America and the Caribbean',91,11797); +INSERT INTO t1 VALUES ('Central America and the Caribbean',442,66422); +SET @save_optimizer_switch=@@optimizer_switch; +SET optimizer_switch='subquery_cache=on'; +SELECT +population, area, population/area, +cast(population/area as DECIMAL(20,9)) FROM t1 LIMIT 1; +population area population/area cast(population/area as DECIMAL(20,9)) +11797 91 129.6374 129.637400000 +SELECT * FROM t1 A +WHERE population/area = (SELECT MAX(population/area) from t1 B where A.region = B.region); +region area population +Central America and the Caribbean 442 66422 +SET optimizer_switch='subquery_cache=off'; +SELECT * FROM t1 A +WHERE population/area = (SELECT MAX(population/area) from t1 B where A.region = B.region); +region area population +Central America and the Caribbean 442 66422 +SET @@optimizer_switch= @save_optimizer_switch; +DROP TABLE t1; +# # MDEV-22852: SIGSEGV in sortlength (optimized builds) # SET @save_optimizer_switch=@@optimizer_switch; |