From a7c04594b8aced94b04329605f7789bb644baf91 Mon Sep 17 00:00:00 2001 From: unknown Date: Wed, 21 Nov 2007 22:56:42 +0400 Subject: Fixed bug #32556: assert in "using index for group-by" : is_last_prefix <= 0, file .\opt_range.cc. SELECT ... GROUP BY bit field failed with an assertion if the bit length of that field was not divisible by 8. sql/key.cc: Fixed bug #32556. Copying of "uneven" bits of a bit field was duplicated in the key_copy() and in the Field_bit::get_key_image(). So, instead of copying of the rest of a bit field, Field_bit::get_key_image() copied "uneven" bits to key image again, and the lowest field byte was not copied to key at all. Duplicated code has been removed from the key_copy function. mysql-test/t/type_bit.test: Added test case for bug #32556. mysql-test/r/type_bit.result: Added test case for bug #32556. --- sql/key.cc | 13 ------------- 1 file changed, 13 deletions(-) (limited to 'sql/key.cc') diff --git a/sql/key.cc b/sql/key.cc index 2bdde46b6b3..1c044f3dc7d 100644 --- a/sql/key.cc +++ b/sql/key.cc @@ -106,19 +106,6 @@ void key_copy(byte *to_key, byte *from_record, KEY *key_info, uint key_length) key_part->null_bit); key_length--; } - if (key_part->type == HA_KEYTYPE_BIT) - { - Field_bit *field= (Field_bit *) (key_part->field); - if (field->bit_len) - { - uchar bits= get_rec_bits((uchar*) from_record + - key_part->null_offset + - (key_part->null_bit == 128), - field->bit_ofs, field->bit_len); - *to_key++= bits; - key_length--; - } - } if (key_part->key_part_flag & HA_BLOB_PART || key_part->key_part_flag & HA_VAR_LENGTH_PART) { -- cgit v1.2.1