| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| |\ |
|
| | |\ |
|
| | | |\ |
|
| | | | | |
|
| |/ / /
| | |
| | |
| | |
| | |
| | | |
This patch changes the main name of 3 byte character set from utf8 to
utf8mb3. New old_mode UTF8_IS_UTF8MB3 is added and set TRUE by default,
so that utf8 would mean utf8mb3. If not set, utf8 would mean utf8mb4.
|
| |\ \ \
| |/ /
| | |
| | |
| | | |
The functional changes of commit 5836191c8f0658d5d75484766fdcc3d838b0a5c1
(MDEV-21168) are omitted due to MDEV-742 having addressed the issue.
|
| | |\ \
| | |/
| | |
| | |
| | |
| | |
| | | |
In main.index_merge_myisam we remove the test that was added in
commit a2d24def8cc42d27c72d833abfb39ef24a2b96ba because
it duplicates the test case that was added in
commit 5af12e463549e4bbc2ce6ab720d78937d5e5db4e.
|
| | | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | | |
The Storage-Engine Independent Column Compression does not call
deflateEnd() when deflate() does not return Z_STREAM_END.
This for instance happens when the data is already (externally)
compressed and deflate() needs more space than the original data.
This patch is based on contribution by Martijn Broenland.
|
| |\ \ \
| |/ / |
|
| | |\ \
| | |/ |
|
| | |/
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
In collaboration with Sergey Vojtovich <svoj@mariadb.org>
The COMPRESSED clause is now a part of the data type and goes immediately
after the data type and length, but before the CHARACTER SET clause,
and before column attributes such as DEFAULT, COLLATE, ON UPDATE,
SYSTEM VERSIONING, engine specific column attributes.
In the old reduction, the COMPRESSED clause was a column attribute.
New syntax:
<varchar or text data type> <length> <compression> <character set> <column attributes>
<varbinary or blob data type> <length> <compression> <column attributes>
New syntax examples:
VARCHAR(1000) COMPRESSED CHARACTER SET latin1 DEFAULT ''
BLOB COMPRESSED DEFAULT ''
Deprecate syntax examples:
VARCHAR(1000) CHARACTER SET latin1 COMPRESSED DEFAULT ''
TEXT CHARACTER SET latin1 DEFAULT '' COMPRESSED
VARBINARY(1000) DEFAULT '' COMPRESSED
As a side effect:
- COMPRESSED is not valid as an SP label name in SQL/PSM routines any more
(but it's still valid as an SP label name in sql_mode=ORACLE)
- COMPRESSED is now allowed in combination with GENERATED ALWAYS AS:
TEXT COMPRESSED GENERATED ALWAYS AS REPEAT('a',1000)
|
| |/ |
|
| |
|
|
|
|
|
| |
character sets
Field_varstring::sql_type() did not calculate character length correctly.
Using char_length() instead of the bad code.
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
Compressed blob columns didn't accept data at their capacity. E.g. storing
255 bytes to TINYBLOB results in "Data too long" error.
Now it is allowed assuming compression method was able to produce shorter
string (so that both metadata and compressed data fits blob) and
column_compression_threshold is lower than blob.
If no compression was performed, we still have to reserve additional byte
for metadata and thus we perform normal data truncation and return it's
status.
|
| | |
|
| |
|
|
|
|
|
|
| |
Unexpected data truncation may occur when storing data to compressed blob
column having multi byte variable length character sets.
The reason was incorrect number of characters limit was enforced for
blobs.
|
| |
|
|
|
| |
Storing 1 byte long string in VARCHAR() COMPRESSED column may trigger
integer overflow when calculating available space for zlib output.
|
| |
|
|
|
|
|
|
| |
Character set safe truncation is done when storing non-empty string in
VARCHAR(0) COMPRESSED column, so that string becomes empty. The code
didn't expect empty string after truncation.
Fixed by moving empty string check after truncation.
|
| |
|
|
|
| |
Handle overlaping "from" and Field_blob_compressed::value for compressed
blobs similarily to regular blobs.
|
| |
|
