[Fix][Connector-V2][OceanBase] oceanbase vector support simple vector index

[xxsc0529]

Purpose of this pull request

ConstraintType class add VECTOR_INDEX_KEY enum，The error is reported in the buildConstrainKeySql method of OceanBaseMysqlCreateTableSqlBuilder. Currently, the vector index supported by oceanbase is very limited. It is not a good solution to not add an index under a large amount of data. Here is an appendix to a default index implementation.
close #9056

Does this PR introduce any user-facing change?

none

How was this patch tested?

seatunnel-e2e/seatunnel-connector-v2-e2e/connector-jdbc-e2e/connector-jdbc-e2e-part-2/src/test/java/org/apache/seatunnel/connectors/seatunnel/jdbc/JdbcOceanBaseMilvusIT.java

Check list

• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
• If you are contributing the connector code, please check that the following files are updated:
  1. Update plugin-mapping.properties and add new connector information in it
  2. Update the pom file of seatunnel-dist
  3. Add ci label in label-scope-conf
  4. Add e2e testcase in seatunnel-e2e
  5. Update connector plugin_config
• Update the release-note.

[Hisoka-X]

Hi @xxsc0529 , thanks for the pr. Could you explain why test case execute normally before this patch. Does the change not be covered by test case?

[Copilot]

Pull Request Overview

This PR introduces support for simple vector indexing for OceanBase by updating constraint types and vector type handling while adding new tests for this functionality.

• Updated test setup in JdbcOceanBaseMilvusIT to configure OceanBase vector memory and added a new test case for handling non-existent tables.
• Modified vector type recognition and naming in OceanBaseMySqlTypeConverter.
• Enhanced the create table SQL builder to support the VECTOR INDEX constraint and adjusted catalog column type mapping.

Reviewed Changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 1 comment.

File	Description
seatunnel-e2e/seatunnel-connector-v2-e2e/connector-jdbc-e2e-part-2/src/test/java/org/apache/seatunnel/connectors/seatunnel/jdbc/JdbcOceanBaseMilvusIT.java	Added test methods and configuration changes for OceanBase vector indexing.
seatunnel-connectors-v2/connector-jdbc/src/main/java/org/apache/seatunnel/connectors/seatunnel/jdbc/internal/dialect/oceanbase/OceanBaseMySqlTypeConverter.java	Updated vector column type handling for case sensitivity and naming.
seatunnel-connectors-v2/connector-jdbc/src/main/java/org/apache/seatunnel/connectors/seatunnel/jdbc/catalog/oceanbase/OceanBaseMysqlCreateTableSqlBuilder.java	Implemented VECTOR_INDEX_KEY SQL generation with specific index options.
seatunnel-connectors-v2/connector-jdbc/src/main/java/org/apache/seatunnel/connectors/seatunnel/jdbc/catalog/oceanbase/OceanBaseMySqlCatalog.java	Normalized column type naming to support VECTOR types.

Files not reviewed (1)

• seatunnel-e2e/seatunnel-connector-v2-e2e/connector-jdbc-e2e/connector-jdbc-e2e-part-2/pom.xml: Language not supported

Comments suppressed due to low confidence (2)

seatunnel-connectors-v2/connector-jdbc/src/main/java/org/apache/seatunnel/connectors/seatunnel/jdbc/internal/dialect/oceanbase/OceanBaseMySqlTypeConverter.java:300

• [nitpick] Consider applying toUpperCase() consistently for both the start and end checks to ensure robust case-insensitive matching of the entire column type string.

if (columnType.toUpperCase().startsWith("VECTOR(") && columnType.endsWith(")")) {

seatunnel-e2e/seatunnel-connector-v2-e2e/connector-jdbc-e2e/connector-jdbc-e2e-part-2/src/test/java/org/apache/seatunnel/connectors/seatunnel/jdbc/JdbcOceanBaseMilvusIT.java:422

• [nitpick] Consider adding JavaDoc comments to the setObVectorMemory() method to explain its purpose and usage in setting up OceanBase vector memory for tests.

public void setObVectorMemory() {

[xxsc0529]

Hi @xxsc0529 , thanks for the pr. Could you explain why test case execute normally before this patch. Does the change not be covered by test case?

add test case:testMilvusToOceanBaseNotTable
The oceanbase table can be automatically created. This test passes the test, which means that the upstream has an index, and the downstream can be aware and created an oceanabse table when processing it downstream, without an error.

[Hisoka-X]

Hi @xxsc0529 , thanks for the pr. Could you explain why test case execute normally before this patch. Does the change not be covered by test case?

add test case:testMilvusToOceanBaseNotTable The oceanbase table can be automatically created. This test passes the test, which means that the upstream has an index, and the downstream can be aware and created an oceanabse table when processing it downstream, without an error.

I cannot found the create table log... Maybe something wrong in test case.

[Hisoka-X]

Thanks @xxsc0529 ! LGTM except one minior problem.

[xxsc0529]

Thanks @xxsc0529 ! LGTM except one minior problem.

It has been modified