feat(dialect): add MariaDB + Snowflake to playground, fix WASM dialectMap, unify config validation

CLAUDE.md

@@ -12,7 +12,7 @@ GoSQLX is a **production-ready**, **race-free**, high-performance SQL parsing SD
 - Thread-safe with zero race conditions (20,000+ concurrent operations tested)
 - 1.38M+ ops/sec sustained, 1.5M peak with memory-efficient object pooling
 - ~80-85% SQL-99 compliance (window functions, CTEs, set operations, MERGE, etc.)
-- Multi-dialect support: PostgreSQL, MySQL, SQL Server, Oracle, SQLite, ClickHouse
+- Multi-dialect support: PostgreSQL, MySQL, MariaDB, SQL Server, Oracle, SQLite, Snowflake, ClickHouse (8 dialects)
 
 ## Architecture
 

README.md

@@ -28,7 +28,7 @@
 
 <br/>
 
-| **1.38M+ ops/sec** | **<1μs latency** | **85% SQL-99** | **7 dialects** | **0 race conditions** |
+| **1.38M+ ops/sec** | **<1μs latency** | **85% SQL-99** | **8 dialects** | **0 race conditions** |
 |:---:|:---:|:---:|:---:|:---:|
 
 </div>
@@ -48,7 +48,7 @@ ast, _ := gosqlx.Parse("SELECT u.name, COUNT(*) FROM users u JOIN orders o ON u.
 
 - **Not an ORM** - a parser. You get the AST, you decide what to do with it.
 - **Not slow** - zero-copy tokenization, sync.Pool recycling, no allocations on hot paths.
-- **Not limited** - PostgreSQL, MySQL, SQL Server, Oracle, SQLite, Snowflake, ClickHouse. CTEs, window functions, MERGE, set operations.
+- **Not limited** - PostgreSQL, MySQL, MariaDB, SQL Server, Oracle, SQLite, Snowflake, ClickHouse. CTEs, window functions, MERGE, set operations.
 - **Not just a library** - CLI, VS Code extension, GitHub Action, MCP server, WASM playground, Python bindings.
 
 <br/>
@@ -140,7 +140,7 @@ claude mcp add --transport http gosqlx \
 <td align="center" width="33%"><h3>🔧 Tooling</h3>AST-based formatter<br/>Query transforms API<br/>VS Code extension<br/>GitHub Action</td>
 </tr>
 <tr>
-<td align="center"><h3>🌐 Multi-Dialect</h3>PostgreSQL · MySQL<br/>SQL Server · Oracle<br/>SQLite · Snowflake</td>
+<td align="center"><h3>🌐 Multi-Dialect</h3>PostgreSQL · MySQL · MariaDB<br/>SQL Server · Oracle<br/>SQLite · Snowflake · ClickHouse</td>
 <td align="center"><h3>🤖 AI-Ready</h3>MCP server (7 tools)<br/>Public remote endpoint<br/>Streamable HTTP</td>
 <td align="center"><h3>🧪 Battle-Tested</h3>20K+ concurrent ops<br/>Zero race conditions<br/>~85% SQL-99 compliance</td>
 </tr>

cmd/gosqlx/cmd/validate.go

@@ -89,7 +89,7 @@ func validateRun(cmd *cobra.Command, args []string) error {
 
 	// Reject unknown dialect names early before any parsing.
 	if validateDialect != "" && !keywords.IsValidDialect(validateDialect) {
-		return fmt.Errorf("unknown SQL dialect %q; valid dialects: postgresql, mysql, sqlserver, oracle, sqlite, snowflake, bigquery, redshift", validateDialect)
+		return fmt.Errorf("unknown SQL dialect %q; valid dialects: postgresql, mysql, mariadb, sqlserver, oracle, sqlite, snowflake, bigquery, redshift", validateDialect)
 	}
 
 	// Handle stdin input
@@ -334,7 +334,7 @@ func init() {
 	validateCmd.Flags().BoolVarP(&validateQuiet, "quiet", "q", false, "quiet mode (exit code only)")
 	validateCmd.Flags().BoolVar(&validateQuiet, "check", false, "check mode (alias for --quiet): exit code only, no output")
 	validateCmd.Flags().BoolVarP(&validateStats, "stats", "s", false, "show performance statistics")
-	validateCmd.Flags().StringVar(&validateDialect, "dialect", "", "SQL dialect: postgresql, mysql, sqlserver, oracle, sqlite (config: validate.dialect)")
+	validateCmd.Flags().StringVar(&validateDialect, "dialect", "", "SQL dialect: postgresql, mysql, mariadb, snowflake, sqlserver, oracle, sqlite (config: validate.dialect)")
 	validateCmd.Flags().BoolVar(&validateStrict, "strict", false, "enable strict validation mode (config: validate.strict_mode)")
 	validateCmd.Flags().StringVar(&validateOutputFormat, "output-format", "text", "output format: text, json, sarif")
 	validateCmd.Flags().StringVar(&validateOutputFile, "output-file", "", "output file path (default: stdout)")

cmd/gosqlx/internal/config/config.go

@@ -84,7 +84,7 @@ type FormatConfig struct {
 // Controls validation behavior including dialect selection and security limits.
 //
 // Fields:
-//   - Dialect: SQL dialect for validation (postgresql, mysql, sqlserver, oracle, sqlite, generic)
+//   - Dialect: SQL dialect for validation (postgresql, mysql, mariadb, snowflake, sqlserver, oracle, sqlite, generic)
 //   - StrictMode: Enable strict validation rules (default: false)
 //   - Recursive: Recursively process directories (default: false)
 //   - Pattern: File pattern for recursive processing (default: "*.sql")
@@ -345,7 +345,7 @@ func (c *Config) Validate() error {
 
 	// Validate dialect (empty string means permissive/no dialect gates)
 	if c.Validation.Dialect != "" {
-		validDialects := []string{"postgresql", "mysql", "sqlserver", "oracle", "sqlite", "generic"}
+		validDialects := []string{"postgresql", "mysql", "mariadb", "snowflake", "sqlserver", "oracle", "sqlite", "generic"}
 		dialectValid := false
 		for _, d := range validDialects {
 			if c.Validation.Dialect == d {

cmd/gosqlx/internal/config/doc.go

@@ -152,7 +152,7 @@
 //	    max_file_size: 10485760    # Maximum file size in bytes
 //
 // Fields:
-//   - Dialect: SQL dialect (postgresql, mysql, sqlserver, oracle, sqlite, generic)
+//   - Dialect: SQL dialect (postgresql, mysql, mariadb, snowflake, sqlserver, oracle, sqlite, generic)
 //   - StrictMode: Enable strict validation rules (default: false)
 //   - Recursive: Recursively process directories (default: false)
 //   - Pattern: File pattern for recursive processing (default: "*.sql")
@@ -195,7 +195,7 @@
 //   - MaxLineLength: 0-500 characters
 //
 // Validation validation:
-//   - Dialect: Must be one of: postgresql, mysql, sqlserver, oracle, sqlite, generic
+//   - Dialect: Must be one of: postgresql, mysql, mariadb, snowflake, sqlserver, oracle, sqlite, generic
 //
 // Output validation:
 //   - Format: Must be one of: json, yaml, table, tree, auto

cmd/gosqlx/internal/config/schema.go

@@ -23,6 +23,8 @@ import (
 var ValidDialects = []string{
 	"postgresql",
 	"mysql",
+	"mariadb",
+	"snowflake",
 	"sqlserver",
 	"oracle",
 	"sqlite",

cmd/gosqlx/internal/config/schema_test.go

@@ -26,6 +26,8 @@ func TestValidateDialect(t *testing.T) {
 	}{
 		{"valid postgresql", "postgresql", false},
 		{"valid mysql", "mysql", false},
+		{"valid mariadb", "mariadb", false},
+		{"valid snowflake", "snowflake", false},
 		{"valid sqlserver", "sqlserver", false},
 		{"valid oracle", "oracle", false},
 		{"valid sqlite", "sqlite", false},
@@ -225,7 +227,7 @@ func TestGetSchema(t *testing.T) {
 }
 
 func TestValidDialects(t *testing.T) {
-	expectedDialects := []string{"postgresql", "mysql", "sqlserver", "oracle", "sqlite", "generic"}
+	expectedDialects := []string{"postgresql", "mysql", "mariadb", "snowflake", "sqlserver", "oracle", "sqlite", "generic"}
 
 	if len(ValidDialects) != len(expectedDialects) {
 		t.Errorf("expected %d dialects, got %d", len(expectedDialects), len(ValidDialects))

docs/SQL_COMPATIBILITY.md

@@ -862,7 +862,7 @@ gosqlx format --dialect mysql query.sql
 1. **ParseWithDialect()** - Parse SQL with dialect-specific syntax
 2. **ValidateWithDialect()** - Validate with dialect awareness
 3. **--dialect CLI flag** - Specify dialect for CLI commands
-4. **6 Supported Dialects** - PostgreSQL, MySQL, SQL Server, Oracle, SQLite, Snowflake
+4. **8 Supported Dialects** - PostgreSQL, MySQL, MariaDB, SQL Server, Oracle, SQLite, Snowflake, ClickHouse
 
 ### MySQL Syntax (11 Features)
 1. **SHOW statements** - SHOW TABLES, DATABASES, CREATE TABLE

pkg/config/config.go

@@ -77,12 +77,12 @@ type FormatConfig struct {
 // ValidationConfig holds SQL validation options for the parser and validator.
 //
 // The Dialect field determines which SQL keywords and syntax are recognized.
-// Supported values: "postgresql", "mysql", "sqlserver", "oracle", "sqlite".
+// Supported values: "postgresql", "mysql", "mariadb", "snowflake", "sqlserver", "oracle", "sqlite".
 //
 // The Pattern field is used for recursive file validation and supports standard
 // glob patterns like "*.sql", "queries/**/*.sql", etc.
 type ValidationConfig struct {
-	Dialect    string         `yaml:"dialect" json:"dialect"`        // SQL dialect: postgresql, mysql, sqlserver, oracle, sqlite (default: "postgresql")
+	Dialect    string         `yaml:"dialect" json:"dialect"`        // SQL dialect: postgresql, mysql, mariadb, snowflake, sqlserver, oracle, sqlite (default: "postgresql")
 	StrictMode *bool          `yaml:"strict_mode" json:"strictMode"` // Enable strict validation mode (default: false)
 	Recursive  *bool          `yaml:"recursive" json:"recursive"`    // Recursively validate files in directories (default: false)
 	Pattern    string         `yaml:"pattern" json:"pattern"`        // File pattern for recursive validation (default: "*.sql")
@@ -215,12 +215,14 @@ func (c *Config) Validate() error {
 	validDialects := map[string]bool{
 		"postgresql": true,
 		"mysql":      true,
+		"mariadb":    true,
+		"snowflake":  true,
 		"sqlserver":  true,
 		"oracle":     true,
 		"sqlite":     true,
 	}
 	if c.Validation.Dialect != "" && !validDialects[c.Validation.Dialect] {
-		return fmt.Errorf("validation.dialect must be one of: postgresql, mysql, sqlserver, oracle, sqlite; got %q", c.Validation.Dialect)
+		return fmt.Errorf("validation.dialect must be one of: postgresql, mysql, mariadb, snowflake, sqlserver, oracle, sqlite; got %q", c.Validation.Dialect)
 	}
 	if c.Validation.Security.MaxFileSize < 0 {
 		return fmt.Errorf("validation.security.max_file_size must be non-negative, got %d", c.Validation.Security.MaxFileSize)

pkg/config/config_test.go

@@ -231,7 +231,7 @@ func TestConfigMerge(t *testing.T) {
 }
 
 func TestConfigDialects(t *testing.T) {
-	validDialects := []string{"postgresql", "mysql", "sqlserver", "oracle", "sqlite"}
+	validDialects := []string{"postgresql", "mysql", "mariadb", "snowflake", "sqlserver", "oracle", "sqlite"}
 
 	for _, dialect := range validDialects {
 		t.Run(dialect, func(t *testing.T) {

pkg/config/doc.go

@@ -47,7 +47,7 @@
 //
 // Validation: SQL validation and dialect settings
 //
-//   - dialect: Target SQL dialect - postgresql, mysql, sqlserver, oracle, sqlite (default: postgresql)
+//   - dialect: Target SQL dialect - postgresql, mysql, mariadb, snowflake, sqlserver, oracle, sqlite (default: postgresql)
 //   - strict_mode: Enable strict validation mode (default: false)
 //   - recursive: Recursively validate files in directories (default: false)
 //   - pattern: File pattern for recursive validation (default: "*.sql")
@@ -246,7 +246,7 @@
 // Validation checks:
 //
 //   - Format: Non-negative indent and max_line_length
-//   - Validation: Valid dialect (postgresql, mysql, sqlserver, oracle, sqlite)
+//   - Validation: Valid dialect (postgresql, mysql, mariadb, snowflake, sqlserver, oracle, sqlite)
 //   - Output: Valid format (text, json, yaml)
 //   - LSP: Non-negative rate limits, timeouts, and size limits
 //   - LSP: Valid trace server level (off, messages, verbose)

pkg/config/lsp.go

@@ -335,7 +335,7 @@ func GetLSPConfigSections() []LSPConfigSection {
 			Description:  "SQL validation options",
 			DefaultValue: ToLSPSettings(defaults)["validation"],
 			Properties: map[string]interface{}{
-				"dialect":    "SQL dialect (postgresql, mysql, sqlserver, oracle, sqlite)",
+				"dialect":    "SQL dialect (postgresql, mysql, mariadb, snowflake, sqlserver, oracle, sqlite)",
 				"strictMode": "Enable strict validation mode",
 			},
 		},

wasm/main.go

@@ -36,6 +36,8 @@ var dialectMap = map[string]sqlkeywords.SQLDialect{
 	"generic":    sqlkeywords.DialectGeneric,
 	"postgresql": sqlkeywords.DialectPostgreSQL,
 	"mysql":      sqlkeywords.DialectMySQL,
+	"mariadb":    sqlkeywords.DialectMariaDB,
+	"clickhouse": sqlkeywords.DialectClickHouse,
 	"sqlite":     sqlkeywords.DialectSQLite,
 	"sqlserver":  sqlkeywords.DialectSQLServer,
 	"oracle":     sqlkeywords.DialectOracle,

website/src/components/playground/Playground.tsx

@@ -22,9 +22,11 @@ const DIALECTS = [
   { value: "generic", label: "Generic" },
   { value: "postgresql", label: "PostgreSQL" },
   { value: "mysql", label: "MySQL" },
+  { value: "mariadb", label: "MariaDB" },
   { value: "sqlite", label: "SQLite" },
   { value: "sqlserver", label: "SQL Server" },
   { value: "oracle", label: "Oracle" },
+  { value: "snowflake", label: "Snowflake" },
   { value: "clickhouse", label: "ClickHouse" },
 ];
 

website/src/lib/constants.ts

@@ -7,7 +7,7 @@ export const NAV_LINKS = [
 ];
 
 export const FEATURES = [
-  { icon: 'globe', title: 'Multi-Dialect', description: 'PostgreSQL, MySQL, SQLite, SQL Server, Oracle, Snowflake, ClickHouse.', color: 'accent-purple' },
+  { icon: 'globe', title: 'Multi-Dialect', description: 'PostgreSQL, MySQL, MariaDB, SQLite, SQL Server, Oracle, Snowflake, ClickHouse.', color: 'accent-purple' },
   { icon: 'lock', title: 'Thread-Safe', description: 'Zero race conditions. 20,000+ concurrent ops tested.', color: 'accent-green' },
   { icon: 'bolt', title: 'Zero-Copy', description: 'Direct byte slice operations. No unnecessary allocations.', color: 'accent-orange' },
   { icon: 'recycle', title: 'Object Pooling', description: 'sync.Pool recycling for ASTs, tokenizers, expressions.', color: 'accent-indigo' },