query

var (
	MissingPKError   = dbx.MissingPKError
	CompositePKError = dbx.CompositePKError
)

var (
	// NewExp builds a raw SQL expression with a named-params map.
	NewExp = dbx.NewExp

	// Not negates an Expression.
	Not = dbx.Not

	// And conjoins Expressions.
	And = dbx.And

	// Or disjoins Expressions.
	Or = dbx.Or

	// In builds a `col IN (...)` clause.
	In = dbx.In

	// NotIn builds a `col NOT IN (...)` clause.
	NotIn = dbx.NotIn

	// Like builds a `col LIKE ...` clause.
	Like = dbx.Like

	// NotLike builds a `col NOT LIKE ...` clause.
	NotLike = dbx.NotLike

	// OrLike builds an OR chain of LIKE clauses.
	OrLike = dbx.OrLike

	// OrNotLike builds an OR chain of NOT LIKE clauses.
	OrNotLike = dbx.OrNotLike

	// Exists builds an `EXISTS (...)` clause.
	Exists = dbx.Exists

	// NotExists builds a `NOT EXISTS (...)` clause.
	NotExists = dbx.NotExists

	// Between builds a `col BETWEEN from AND to` clause.
	Between = dbx.Between

	// NotBetween builds a `col NOT BETWEEN from AND to` clause.
	NotBetween = dbx.NotBetween

	// Enclose wraps an Expression in parentheses for precedence.
	Enclose = dbx.Enclose

	// NewFromDB wraps an existing *sql.DB with the given driver name.
	NewFromDB = dbx.NewFromDB

	// Open opens a new database connection.
	Open = dbx.Open

	// MustOpen is like Open but panics on error.
	MustOpen = dbx.MustOpen

	// NewQuery builds a raw Query with a SQL string.
	NewQuery = dbx.NewQuery

	// NewSelectQuery builds an empty SelectQuery.
	NewSelectQuery = dbx.NewSelectQuery

	// NewModelQuery builds a struct-aware ModelQuery.
	NewModelQuery = dbx.NewModelQuery

	// NewPoolManager constructs a sharded PoolManager.
	NewPoolManager = dbx.NewPoolManager

	// DefaultSQLiteConnect is the default single-file SQLite connector
	// used by PoolManager.
	DefaultSQLiteConnect = dbx.DefaultSQLiteConnect

	// DefaultFieldMapFunc converts CamelCase struct fields to snake_case.
	DefaultFieldMapFunc = dbx.DefaultFieldMapFunc

	// GetTableName returns the default table name for a struct.
	GetTableName = dbx.GetTableName

	// Driver-specific builder constructors.
	NewBaseBuilder      = dbx.NewBaseBuilder
	NewBaseQueryBuilder = dbx.NewBaseQueryBuilder
	NewStandardBuilder  = dbx.NewStandardBuilder
	NewSqliteBuilder    = dbx.NewSqliteBuilder
	NewMysqlBuilder     = dbx.NewMysqlBuilder
	NewPgsqlBuilder     = dbx.NewPgsqlBuilder
	NewMssqlBuilder     = dbx.NewMssqlBuilder
	NewOciBuilder       = dbx.NewOciBuilder

	// BuilderFuncMap is the driver-name → Builder registry.
	// Callers may extend this map to register new drivers.
	BuilderFuncMap = dbx.BuilderFuncMap

	// DefaultLikeEscape is the LIKE escape map used when no explicit
	// escape is provided to Like / NotLike.
	DefaultLikeEscape = dbx.DefaultLikeEscape
)