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Merge bk-internal:/home/bk/mysql-4.1/

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into serg.mylan:/usr/home/serg/Abk/mysql-4.1
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serg@serg.mylan 2003-09-08 17:48:00 +02:00
commit 536b8405b7
1 changed files with 16 additions and 17 deletions
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23
innobase/row/row0sel.c
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@ -2178,9 +2178,9 @@ row_sel_store_mysql_rec(
prebuilt->blob_heap = NULL; prebuilt->blob_heap = NULL;
} }
/* Mark all columns as not SQL NULL */ /* Mark all columns as SQL NULL */
memset(mysql_rec, '\0', prebuilt->null_bitmap_len); memset(mysql_rec, 255, prebuilt->null_bitmap_len);
for (i = 0; i < prebuilt->n_template; i++) { for (i = 0; i < prebuilt->n_template; i++) {
@ -2245,6 +2245,11 @@ row_sel_store_mysql_rec(
mem_heap_free(extern_field_heap); mem_heap_free(extern_field_heap);
extern_field_heap = NULL; extern_field_heap = NULL;
} }
if (templ->mysql_null_bit_mask) {
mysql_rec[templ->mysql_null_byte_offset] &=
~(byte) (templ->mysql_null_bit_mask);
}
} else { } else {
/* MySQL seems to assume the field for an SQL NULL /* MySQL seems to assume the field for an SQL NULL
value is set to zero. Not taking this into account value is set to zero. Not taking this into account
@ -2252,17 +2257,11 @@ row_sel_store_mysql_rec(
bug number 154 in the MySQL bug database: GROUP BY bug number 154 in the MySQL bug database: GROUP BY
and DISTINCT could treat NULL values inequal. */ and DISTINCT could treat NULL values inequal. */
memset(mysql_rec + templ->mysql_col_offset, '\0', memset(mysql_rec + templ->mysql_col_offset,
((templ->type == DATA_VARCHAR ||
templ->type == DATA_VARMYSQL ||
templ->type == DATA_BINARY) ? ' ' : '\0'),
templ->mysql_col_len); templ->mysql_col_len);
if (!templ->mysql_null_bit_mask) {
fprintf(stderr,
"InnoDB: Error: trying to return an SQL NULL field in a non-null\n"
"innoDB: column! Table name %s\n", prebuilt->table->name);
} else {
mysql_rec[templ->mysql_null_byte_offset] |=
(byte) (templ->mysql_null_bit_mask);
}
} }
} }