Sergei Golubchik 607d8f9e97 MDEV-14081 ALTER TABLE CHANGE COLUMN Corrupts Index Leading to Crashes in 10.2 ...

remove remnants of 10.0 bugfix, incorrectly merged into 10.2

Using col_names[i] was obviously, wrong, must've been col_names[ifield->col_no].
incorrect column name resulted in innodb having index unique_id2(id1),
while the server thought it's unique_id2(id4).
But col_names[ifield->col_no] is wrong too, because `table` has non-renamed
columns, so the correct column name is always dict_table_get_col_name(table, ifield->col_no)

2017-10-18 22:15:27 +02:00

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