feat: MATERIALIZED VIEW COMMENT

[tianzhou]

No description provided.

[Copilot]

Pull Request Overview

This PR adds support for COMMENT statements on materialized views by implementing parser functionality to handle OBJECT_MATVIEW object types and includes test data demonstrating materialized view comments in action.

• Added parser support for COMMENT ON MATERIALIZED VIEW statements in the parseComment method
• Created test materialized views with comments and associated indexes
• Updated test data to include materialized view inclusions and expected schema outputs

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
ir/parser.go	Implements parsing logic for materialized view comments by handling OBJECT_MATVIEW case
testdata/include/materialized_views/user_order_summary.sql	Adds test materialized view with aggregated user statistics and comment
testdata/include/materialized_views/monthly_stats.sql	Adds test materialized view with monthly order statistics and comment
testdata/include/main.sql	Includes the new materialized view files in the test schema
testdata/include/expected_full_schema.sql	Updates expected output to include the materialized views and their comments

Comments suppressed due to low confidence (1)

testdata/include/expected_full_schema.sql:1

• The COMMENT statement for user_order_summary is missing from the expected schema output. This comment should appear after line 250 to match the source file structure.

-- Main schema file demonstrating \i include functionality

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