feat(sqlite): add SQLite support to format tests#4207
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kyleconroy merged 1 commit intomainfrom Dec 1, 2025
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Implements comprehensive formatting support for SQLite SQL statements, enabling round-trip format testing similar to MySQL. Key changes: **New SQLite Formatter:** - Add format.go implementing Formatter interface for SQLite dialect - Support SQLite-specific named parameter syntax (`:name` instead of `@name`) **AST Formatting Fixes:** - Add `NamedParam` method to Formatter interface for dialect-specific named params - Fix `CollateExpr` missing Format method for COLLATE clause support - Add `DefaultValues` field to InsertStmt for INSERT DEFAULT VALUES syntax - Fix table function argument conversion (e.g., json_each()) **SQLite Parser Improvements:** - Fix BoolExpr Boolop field for AND/OR expressions - Add EXISTS/NOT EXISTS subquery handling via SubLink nodes - Add unary expression support (NOT operator) - Fix NULL literal conversion in COALESCE expressions **Test Updates:** - Add SQLite case to fmt_test.go with case-insensitive fingerprinting - Regenerate expected output for select_exists/select_not_exists tests (EXISTS now correctly returns bool instead of int64) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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Summary
format.goimplementing the Formatter interface with proper named parameter syntax (:name)Key Changes
Formatter Interface:
NamedParam(name string) stringmethod to support dialect-specific named parameter syntax@name, MySQL:?, SQLite::nameAST Formatting Fixes:
CollateExpr: Add missing Format method forCOLLATE <collation>supportInsertStmt: AddDefaultValues boolfield forINSERT INTO ... DEFAULT VALUESsyntaxA_Expr: Refactor named param detection to work regardless of Kind fieldSQLite Parser Improvements:
BoolExprBoolop field not being set for AND/OR expressionsjson_each(json_extract(...)))Test plan
TestFormattests pass (validates AST→SQL→fingerprint matches original)TestReplaytests pass (regenerated expected output for EXISTS tests)go test ./...tests pass🤖 Generated with Claude Code