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MDEV-21138 Assertion col->ord_part' or f.col->ord_part' failed in row_build_index_entry_low

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First part (row0mysql.cc) fixes ins_node_set_new_row() usage workflow
as it is designed to operate on empty row (see row_get_prebuilt_insert_row()
for example).

Second part (row0ins.cc) fixes duplicate key error in FTS_DOC_ID_INDEX
since history rows must not generate entries in that index. We detect
FTS_DOC_ID_INDEX by a number of attributes and skip it if the row is
historical.

Misc fixes:

row_build_index_entry_low() does not accept non-NULL tuple
for FTS index (subject assertion fails), assertion (index->type !=
DICT_FTS) adds code understanding.

Now as historical_row is copied in row_update_vers_insert() there is
no need to copy the row twice: ROW_COPY_POINTERS is used to build
historical_row initially.

dbug_print_rec() debug functions.
This commit is contained in:
Aleksey Midenkov
2020-12-22 03:33:53 +03:00
parent d4258f3a8f
commit 7410ff436e
9 changed files with 179 additions and 8 deletions
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19
mysql-test/suite/versioning/r/delete.result
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@ -130,3 +130,22 @@ ERROR 42S02: Table 'test.xx' doesn't exist
drop procedure pr;
drop trigger tr;
drop table t1;
#
# MDEV-21138 Assertion `col->ord_part' or `f.col->ord_part' failed in row_build_index_entry_low
#
create table t1 (
f1 int, f2 text, f3 int, fulltext (f2), key(f1), key(f3),
foreign key r (f3) references t1 (f1) on delete set null)
with system versioning engine innodb;
insert into t1 values (1, repeat('a', 8193), 1), (1, repeat('b', 8193), 1);
select f1, f3, check_row(row_start, row_end) from t1;
f1 f3 check_row(row_start, row_end)
1 1 CURRENT ROW
1 1 CURRENT ROW
delete from t1;
select f1, f3, check_row(row_start, row_end) from t1 for system_time all;
f1 f3 check_row(row_start, row_end)
1 1 HISTORICAL ROW
1 NULL ERROR: row_end == row_start
1 1 HISTORICAL ROW
drop table t1;