diff options
Diffstat (limited to 'storage/innobase/include/rem0cmp.h')
| -rw-r--r-- | storage/innobase/include/rem0cmp.h | 48 |
1 files changed, 15 insertions, 33 deletions
diff --git a/storage/innobase/include/rem0cmp.h b/storage/innobase/include/rem0cmp.h index 0877c7b5b6a..af1b145b0d9 100644 --- a/storage/innobase/include/rem0cmp.h +++ b/storage/innobase/include/rem0cmp.h @@ -1,7 +1,7 @@ /***************************************************************************** Copyright (c) 1994, 2016, Oracle and/or its affiliates. All Rights Reserved. -Copyright (c) 2017, MariaDB Corporation. +Copyright (c) 2017, 2020, MariaDB Corporation. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software @@ -80,7 +80,7 @@ cmp_dfield_dfield( /** Compare a GIS data tuple to a physical record. @param[in] dtuple data tuple -@param[in] rec B-tree record +@param[in] rec R-tree record @param[in] offsets rec_get_offsets(rec) @param[in] mode compare mode @retval negative if dtuple is less than rec */ @@ -190,43 +190,23 @@ cmp_rec_rec_simple( duplicate key value if applicable, or NULL */ MY_ATTRIBUTE((nonnull(1,2,3,4), warn_unused_result)); -/** Compare two B-tree records. -@param[in] rec1 B-tree record -@param[in] rec2 B-tree record -@param[in] offsets1 rec_get_offsets(rec1, index) -@param[in] offsets2 rec_get_offsets(rec2, index) -@param[in] index B-tree index -@param[in] nulls_unequal true if this is for index cardinality -statistics estimation, and innodb_stats_method=nulls_unequal -or innodb_stats_method=nulls_ignored -@param[out] matched_fields number of completely matched fields -within the first field not completely matched -@return the comparison result -@retval 0 if rec1 is equal to rec2 -@retval negative if rec1 is less than rec2 -@retval positive if rec2 is greater than rec2 */ -int -cmp_rec_rec_with_match( - const rec_t* rec1, - const rec_t* rec2, - const offset_t* offsets1, - const offset_t* offsets2, - const dict_index_t* index, - bool nulls_unequal, - ulint* matched_fields); -/** Compare two B-tree records. +/** Compare two B-tree or R-tree records. Only the common first fields are compared, and externally stored field are treated as equal. -@param[in] rec1 B-tree record -@param[in] rec2 B-tree record +@param[in] rec1 record (possibly not on an index page) +@param[in] rec2 B-tree or R-tree record in an index page @param[in] offsets1 rec_get_offsets(rec1, index) @param[in] offsets2 rec_get_offsets(rec2, index) +@param[in] nulls_unequal true if this is for index cardinality + statistics estimation with + innodb_stats_method=nulls_unequal + or innodb_stats_method=nulls_ignored @param[out] matched_fields number of completely matched fields within the first field not completely matched -@return positive, 0, negative if rec1 is greater, equal, less, than rec2, -respectively */ -UNIV_INLINE +@retval 0 if rec1 is equal to rec2 +@retval negative if rec1 is less than rec2 +@retval positive if rec1 is greater than rec2 */ int cmp_rec_rec( const rec_t* rec1, @@ -234,7 +214,9 @@ cmp_rec_rec( const offset_t* offsets1, const offset_t* offsets2, const dict_index_t* index, - ulint* matched_fields = NULL); + bool nulls_unequal = false, + ulint* matched_fields = NULL) + MY_ATTRIBUTE((nonnull(1,2,3,4,5))); /** Compare two data fields. @param[in] dfield1 data field |