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Check index column sizes in a better way (bug #13315).

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This commit is contained in:
osku
2005-11-04 10:57:22 +00:00
parent 8a2d0ab0c8
commit 1a77f1c52c
4 changed files with 76 additions and 24 deletions
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9
handler/ha_innodb.cc
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@@ -2517,6 +2517,12 @@ ha_innobase::open(
DBUG_RETURN(0);
}
uint
ha_innobase::max_supported_key_part_length() const
{
return(DICT_MAX_INDEX_COL_LEN - 1);
}
/**********************************************************************
Closes a handle to an InnoDB table. */
@@ -4674,6 +4680,9 @@ create_index(
0, prefix_len);
}
/* Even though we've defined max_supported_key_part_length, we
still do our own checking using field_lengths to be absolutely
sure we don't create too long indexes. */
error = row_create_index_for_mysql(index, trx, field_lengths);
error = convert_error_code_to_mysql(error, NULL);

2
handler/ha_innodb.h
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@@ -110,7 +110,7 @@ class ha_innobase: public handler
but currently MySQL does not work with keys
whose size is > MAX_KEY_LENGTH */
uint max_supported_key_length() const { return 3500; }
uint max_supported_key_part_length() const { return 3500; }
uint max_supported_key_part_length() const;
const key_map *keys_to_use_for_scanning() { return &key_map_full; }
bool has_transactions() { return 1;}