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Updated with changes from Percona Server 5.1.56-12.7, from

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lp:~percona-dev/percona-server/release-5.1.56-12.7 percona-server-5.1.56-12.7
as of April 29, 2011.

Merged: revid:ignacio.nin@percona.com-20110427224434-e5a4kpyfwvj641q3
This commit is contained in:
unknown 2011-04-29 14:49:04 +02:00
commit fecd255a16
83 changed files with 1976 additions and 1280 deletions
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22
include/data0data.ic
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@ -229,20 +229,30 @@ dfield_dup(
}
/*********************************************************************//**
Tests if data length and content is equal for two dfields.
@return TRUE if equal */
Tests if two data fields are equal.
If len==0, tests the data length and content for equality.
If len>0, tests the first len bytes of the content for equality.
@return TRUE if both fields are NULL or if they are equal */
UNIV_INLINE
ibool
dfield_datas_are_binary_equal(
/*==========================*/
const dfield_t* field1, /*!< in: field */
const dfield_t* field2) /*!< in: field */
const dfield_t* field2, /*!< in: field */
ulint len) /*!< in: maximum prefix to compare,
or 0 to compare the whole field length */
{
ulint len;
ulint len2 = len;
len = field1->len;
if (field1->len == UNIV_SQL_NULL || len == 0 || field1->len < len) {
len = field1->len;
}
return(len == field2->len
if (field2->len == UNIV_SQL_NULL || len2 == 0 || field2->len < len2) {
len2 = field2->len;
}
return(len == len2
&& (len == UNIV_SQL_NULL
|| !memcmp(field1->data, field2->data, len)));
}