A single typed value. Used for constants, parameters, and catalog defaults.

16-byte inline string representation. Strings <= 12 bytes are stored entirely inline. Longer strings store a 4-byte prefix + pointer to external buffe

The core type class. Stores a LogicalTypeId + optional ExtraTypeInfo for parameterized types.

Describes a column in a table.

Connection to a SlothDB database.

Extension Manager: loads/unloads extensions, manages registered functions.

Result of a SQL query. Three materialisation paths, all lazy: * `.rows` list of tuples (best for small results, dict-lik

Manages all transactions. Enforces single-writer, snapshot isolation.

Per-agg typed column pointers.

Do NOT skip str_data on VARCHAR group cols: PLAIN-page RGs need gstr[] populated for the fallback at the per-row branch below. (A mid-RG dict-to-PLAIN

Per-agg column snapshot for this RG.

Variable-width slot stored AoS in the map. Sized once per agg_count at construction. Allocating a vector<int64_t> per slot would be a heap alloc per g

---- PATTERN 2: SUM / AVG / MIN / MAX ---- "total X", "sum of X", "average X", "mean X", "min X", "max X" plus optional "per Y" / "by Y" -> GROUP BY p

ALTER TABLE statement.

Bump allocator for short-lived, batch allocations (parser, binder). Memory is freed all at once when the arena is destroyed.

Arithmetic: left op right (+, -, *, /, %).

Transaction control statements.

Bind context: tracks which columns are available during binding.

The Binder: resolves names and types in parsed statements against the catalog.

Manages block-level I/O to a .slothdb file.

Bound arithmetic (+, -, *, /, %).

Bound CAST.

Bound column reference - resolved to table index + column index.

Bound comparison (=, <, >, <=, >=, !=, LIKE).

Bound AND/OR.

Bound constant value.

Base class for bound (type-resolved) expressions.

Bound function/aggregate call.

Bound IS [NOT] NULL.

Bound NOT.