[predictor2718]

Summary

• Added VECTOR as a reserved keyword with FLAG_KEYWORD_DATA_TYPE in MySQL 9.0-9.3 contexts
• Added VECTOR as a reserved keyword with FLAG_KEYWORD_DATA_TYPE in MariaDB 11.7-12.1 contexts
• Added VECTOR INDEX and VECTOR KEY as composed key keywords in all affected contexts
• Previously VECTOR(5) triggered "Unrecognized data type" and VECTOR INDEX was parsed as a column definition

Fixes #641.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.92%. Comparing base (4c45eac) to head (221efc3).

Additional details and impacted files

@@            Coverage Diff            @@
##             5.11.x     #651   +/-   ##
=========================================
  Coverage     96.92%   96.92%           
  Complexity     2316     2316           
=========================================
  Files            71       71           
  Lines          5110     5110           
=========================================
  Hits           4953     4953           
  Misses          157      157           

Flag	Coverage Δ
unit-7.2-ubuntu-latest	96.92% <ø> (ø)
unit-7.3-ubuntu-latest	96.91% <ø> (ø)
unit-7.4-ubuntu-latest	96.89% <ø> (ø)
unit-8.0-ubuntu-latest	96.91% <ø> (ø)
unit-8.1-ubuntu-latest	96.91% <ø> (ø)
unit-8.2-ubuntu-latest	96.87% <ø> (ø)
unit-8.3-ubuntu-latest	96.87% <ø> (ø)
unit-8.4-ubuntu-latest	96.87% <ø> (ø)
unit-8.5-ubuntu-latest	96.87% <ø> (ø)

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[xmaks82]

MariaDB also prints the vector index options in SHOW CREATE TABLE (11.8):

VECTOR KEY `v` (`v`) `M`='8' `DISTANCE`='cosine'

With this branch, VECTOR INDEX (v) M=8 DISTANCE=cosine still gives A comma or a closing bracket was expected. (near "M"), and the index options are dropped. Adding them to Key::$KEY_OPTIONS fixes the unquoted form (I used separate order numbers so they do not share a slot with VISIBLE/INVISIBLE):

'M' => [7, 'var='],
'DISTANCE' => [8, 'var='],

The quoted form also needs backquoted option names to be accepted, see #644.

Docs: https://mariadb.com/docs/server/reference/sql-structure/vectors/create-table-with-vectors