# Phase 18 — SQL Editor and Result Grid

Built from the Phase 17 project archive and includes the correction for the Phase 17 `localizedCaseInsensitiveHasPrefix` compilation error.

## Changes
- Execute highlighted SQL independently of the complete editor buffer (Run Selection).
- SQL completion includes cached table and view names loaded in the Schemas navigator, alongside SQL keywords. Column-aware suggestions are not yet implemented.
- Case-insensitive local filtering of query result rows.
- Local result sorting by chosen column, ascending or descending.
- CSV export of the currently displayed rows, with RFC-style doubled quotes, UTF-8 BOM and CRLF line endings.
- Query elapsed wall-clock time, shown after execution completes (includes connection overhead).

## Limitations
- Result grid filters/sorts operate only on rows returned by the existing query engine, not the full database table.
- The CSV writer constructs the file in memory and should not be used for huge result sets.
- SQL autocomplete suggestions depend on schemas already loaded; no column metadata is fetched.
- No new SQL error underlining was added.
- Not compiled on macOS or tested against a MySQL server; run xcodebuild on the Mac.