fix: cross schema table reference in view

[tianzhou]

Fix #102

[Copilot]

Pull Request Overview

This PR fixes cross-schema table references in views by ensuring that pg_get_viewdef() properly qualifies table references from different schemas. The fix modifies the database query to temporarily set search_path to only the view's schema, forcing PostgreSQL to include schema qualifiers for cross-schema references. The parser and formatter are also updated to apply the same qualification rules.

• Modified the GetViewsForSchema query to use set_config for temporary search_path manipulation
• Updated the formatter to apply schema qualification rules (omit for same-schema, include for cross-schema)
• Threaded viewSchema parameter through parser and normalization functions

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
testdata/dump/tenant/pgschema.sql	Adds test data with materialized view and regular view that reference cross-schema tables
ir/queries/queries.sql.go	Generated code reflecting the updated SQL query with search_path manipulation
ir/queries/queries.sql	Modified query to use CTE and set_config to control schema qualification in view definitions
ir/parser.go	Updated function signatures to accept and pass viewSchema parameter
ir/normalize.go	Updated normalization functions to accept and pass viewSchema parameter
ir/formatter.go	Implements schema qualification logic based on whether table and view schemas match

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[Copilot]

Pull Request Overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated no new comments.

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