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Make a test independent of the build options

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The number of records in INFORMATION_SCHEMA.COLUMNS depends on the
build options, and could easily change when features are added.
We are not interested in the number of rows returned. The test was
originally added because of problem 15 reported in MDEV-13900
(testing for MDEV-11369 instant ADD COLUMN). The issue was an
assertion failure ut_ad(!rec_is_default_row(rec, index))
in lock_clust_rec_cons_read_sees(), because the 'default row' record
was not being properly ignored by the b-tree cursor.
This commit is contained in:
Marko Mäkelä
2018-05-04 14:42:53 +03:00
parent d36034b6d8
commit 3b50cd2492
2 changed files with 4 additions and 4 deletions
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6
mysql-test/suite/innodb/r/instant_alter_debug.result
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@ -32,10 +32,10 @@ pk f
CREATE TABLE t4 (pk INT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t4 VALUES (0);
ALTER TABLE t4 ADD COLUMN b INT;
SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
SELECT COUNT(*)>0 FROM INFORMATION_SCHEMA.COLUMNS
LEFT JOIN t4 ON (NUMERIC_SCALE = pk);
COUNT(*)
953
COUNT(*)>0
1
SET DEBUG_SYNC='innodb_inplace_alter_table_enter SIGNAL enter WAIT_FOR delete';
ALTER TABLE t4 ADD COLUMN c INT;
connect dml,localhost,root,,;