database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-08-07 00:04:31 +03:00
Code Activity

MDEV-27911: Implement range notation for json path

Browse Source 
Range can be thought about in similar manner as wildcard (*) where
more than one elements are processed. To implement range notation, extended
json parser to parse the 'to' keyword and added JSON_PATH_ARRAY_RANGE for
path type. If there is 'to' keyword then use JSON_PATH_ARRAY range for
path type along with existing type.
This new integer to store the end index of range is n_item_end.
When there is 'to' keyword, store the integer in n_item_end else store in
n_item.
This commit is contained in:
Rucha Deodhar
2022-03-05 01:03:49 +05:30
parent abe9712194
commit c781cefd8a
8 changed files with 480 additions and 88 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/json_lib.h
View File

@@ -84,7 +84,8 @@ enum json_path_step_types
JSON_PATH_KEY_DOUBLEWILD= 1+8,
JSON_PATH_ARRAY_WILD= 2+4,
JSON_PATH_ARRAY_DOUBLEWILD= 2+8,
JSON_PATH_NEGATIVE_INDEX= 16
JSON_PATH_NEGATIVE_INDEX= 16,
JSON_PATH_ARRAY_RANGE= 32
};
@@ -95,6 +96,7 @@ typedef struct st_json_path_step_t
const uchar *key; /* Pointer to the beginning of the key. */
const uchar *key_end; /* Pointer to the end of the key. */
int n_item; /* Item number in an array. No meaning for the key step. */
int n_item_end; /* Last index of the range. */
} json_path_step_t;