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executor: fix insert ignore invalid year #26097

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executor: fix insert ignore invalid year #26097

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c8d8900
fix invalid year
b41sh Jul 10, 2021
debf16d
fix test
b41sh Jul 10, 2021
f5235d4
Merge branch 'master' into fix-year
b41sh Jul 12, 2021
e344fad
optimize
b41sh Jul 12, 2021
5fd0411
Merge branch 'master' into fix-year
b41sh Jul 15, 2021
1958294
add test
b41sh Jul 15, 2021
ee07876
fix test
b41sh Jul 15, 2021
c0107b2
fix test
b41sh Jul 16, 2021
f7874d5
merge
b41sh Sep 2, 2021
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5 changes: 5 additions & 0 deletions executor/insert_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -336,6 +336,11 @@ func (s *testSuite3) TestInsertWrongValueForField(c *C) {
tk.MustExec(`create table t (a year);`)
_, err = tk.Exec(`insert into t values(2156);`)
c.Assert(err.Error(), Equals, `[types:8033]invalid year`)

_, err = tk.Exec(`insert ignore into t values(1900);`)
c.Assert(err, IsNil)
tk.MustQuery("show warnings;").Check(testutil.RowsWithSep("|", "Warning|8033|invalid year"))
tk.MustQuery(`select * from t;`).Check(testkit.Rows(`0`))
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@mmyj mmyj Jul 12, 2021 •
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According to the doc

YEAR follows the following format rules:

Four-digit numeral ranges from 1901 to 2155
Four-digit string ranges from '1901' to '2155'
One-digit or two-digit numeral ranges from 1 to 99. Accordingly, 1-69 is converted to 2001-2069 and 70-99 is converted to 1970-1999
One-digit or two-digit string ranges from '0' to '99'
Value 0 is taken as 0000 whereas the string '0' or '00' is taken as 2000
Invalid YEAR value is automatically converted to 0000 (if users are not using the NO_ZERO_DATE SQL mode).

I think we need to add a new test unit with the both valid and invalid case.

By the way, what value the invalid YEAR value will be converted when using NO_ZERO_DATE SQL mode? In my local, whatever using or not, the invalid value is always converted to 0.

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ok, I will add some test cases and check NO_ZERO_DATE mode

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@mmyj
NO_ZERO_DATE will not affect the insertion of year type data, we can ignore it.
According to MySQL doc https://dev.mysql.com/doc/refman/8.0/en/sql-mode.html#sql-mode-strict
If the input parameter is an invalid value, an error will be produced only in strict SQL mode and without ignore, otherwise it can be inserted successfully and results in a warning.
I have add some test case, PTAL

}

func (s *testSuite3) TestInsertValueForCastDecimalField(c *C) {
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2 changes: 2 additions & 0 deletions table/column.go
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Expand Up @@ -265,6 +265,8 @@ func CastValue(ctx sessionctx.Context, val types.Datum, col *model.ColumnInfo, r
if innCasted, exit, innErr := handleZeroDatetime(ctx, col, casted, val.GetString(), types.ErrWrongValue.Equal(err)); exit {
return innCasted, innErr
}
} else if (sc.InInsertStmt || sc.InUpdateStmt) && types.ErrInvalidYear.Equal(err) {
casted.SetInt64(0)
}

err = sc.HandleTruncate(err)
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