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MDEV-18153 Assertion 0' or Assertion btr_validate_index(index, 0)' failed in row_upd_sec_index_entry or error code 126: Index is corrupted upon UPDATE with TIME_ROUND_FRACTIONAL

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Conversion to a temporal data type resulting into a lower precision
depends on TIME_ROUND_FRACTIONAL. Taking into account this dependency in:
- indexed generated virtual column expressions
- persistent virtual column expressions

A warning is now issued if conversion from the generation expression
to the column data type depends on TIME_ROUND_FRACTIONAL.

The warning will be changed to error in 10.5
This commit is contained in:
Alexander Barkov
2019-09-13 11:04:23 +04:00
parent 368e64aaed
commit c924e39fab
13 changed files with 690 additions and 3 deletions
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101
mysql-test/suite/vcol/r/vcol_sql_mode_datetime.result Normal file
View File

@@ -0,0 +1,101 @@
#
# Start of 10.4 tests
#
#
# MDEV-18153 Assertion `0' or Assertion `btr_validate_index(index, 0)' failed in row_upd_sec_index_entry or error code 126: Index is corrupted upon UPDATE with TIME_ROUND_FRACTIONAL
#
SET sql_mode=DEFAULT;
# OK: same FSP + virtual index
CREATE TABLE t1 (
t DATETIME(4),
d DATETIME,
v DATETIME(4) AS (t) VIRTUAL,
KEY(v,d)
);
DROP TABLE t1;
CREATE TABLE t1 (
t DATETIME(4),
d DATETIME,
v DATETIME(4) AS ('2001-01-01 10:20:30.1234') VIRTUAL,
KEY(v,d)
);
DROP TABLE t1;
# OK: lower FSP + no virtual index
CREATE TABLE t1 (
t DATETIME(4),
d DATETIME,
v DATETIME(3) AS (t) VIRTUAL
);
DROP TABLE t1;
CREATE TABLE t1 (
t DATETIME(4),
d DATETIME,
v DATETIME(3) AS ('2001-01-01 10:20:30.1234') VIRTUAL
);
DROP TABLE t1;
# NOT OK: lower FSP + virtual index
CREATE TABLE t1 (
t DATETIME(4),
d DATETIME,
v DATETIME(3) AS (t) VIRTUAL,
KEY(v,d)
);
Warnings:
Warning 1901 Function or expression '`t`' cannot be used in the GENERATED ALWAYS AS clause of `v`
Warning 1105 Expression depends on the @@sql_mode value TIME_ROUND_FRACTIONAL
DROP TABLE t1;
CREATE TABLE t1 (
t DATETIME(4),
d DATETIME,
v DATETIME(3) AS (COALESCE(t)) VIRTUAL,
KEY(v,d)
);
Warnings:
Warning 1901 Function or expression 'coalesce(`t`)' cannot be used in the GENERATED ALWAYS AS clause of `v`
Warning 1105 Expression depends on the @@sql_mode value TIME_ROUND_FRACTIONAL
DROP TABLE t1;
CREATE TABLE t1 (
t DATETIME(4),
d DATETIME,
v DATETIME(3) AS ('2001-01-01 10:20:30.1234') VIRTUAL,
KEY(v,d)
);
Warnings:
Warning 1901 Function or expression ''2001-01-01 10:20:30.1234'' cannot be used in the GENERATED ALWAYS AS clause of `v`
Warning 1105 Expression depends on the @@sql_mode value TIME_ROUND_FRACTIONAL
DROP TABLE t1;
# OK: lower FSP + ROUND + virtual index
SET sql_mode=DEFAULT;
CREATE TABLE t1 (
t DATETIME(4),
d DATETIME,
v DATETIME(3) AS (ROUND(t,3)) VIRTUAL,
KEY(v,d)
);
INSERT IGNORE INTO t1 (t,d) VALUES ('2006-03-01 12:44:34.0496','2029-10-10 21:27:53');
SELECT * FROM t1;
t d v
2006-03-01 12:44:34.0496 2029-10-10 21:27:53 2006-03-01 12:44:34.050
SET SQL_MODE= 'TIME_ROUND_FRACTIONAL';
UPDATE IGNORE t1 SET d = NOW();
DROP TABLE t1;
SET sql_mode=DEFAULT;
# OK: lower FSP + TRUNCATE + virtual index
SET sql_mode=DEFAULT;
CREATE TABLE t1 (
t DATETIME(4),
d DATETIME,
v DATETIME(3) AS (TRUNCATE(t,3)) VIRTUAL,
KEY(v,d)
);
INSERT IGNORE INTO t1 (t,d) VALUES ('2006-03-01 12:44:34.0496','2029-10-10 21:27:53');
SELECT * FROM t1;
t d v
2006-03-01 12:44:34.0496 2029-10-10 21:27:53 2006-03-01 12:44:34.049
SET SQL_MODE= 'TIME_ROUND_FRACTIONAL';
UPDATE IGNORE t1 SET d = NOW();
DROP TABLE t1;
SET sql_mode=DEFAULT;
#
# End of 10.4 tests
#