Module func

Expand description

TBD: Currently, sql::func handles matching arguments to their respective built-in functions (for most built-in functions, at least).

Macros§

builtins 🔒: Constructs builtin function map.
catalog_name_only 🔒: Functions using this macro should be transformed/planned away before reaching function selection code, but still need to be present in the catalog during planning.
impl_def 🔒
params 🔒: Provides shorthand for converting Vec<ScalarType> into Vec<ParamType>.
privilege_fn 🔒: Generates an (OID, OID, TEXT) SQL implementation for has_X_privilege style functions.

Candidate: Tracks candidate implementations.
FuncImpl: Describes a single function’s implementation.
FuncImplCatalogDetails: Describes how each implementation should be represented in the catalog.
Operation: Builds an expression that evaluates a scalar function on the provided input expressions.
PolymorphicSolution 🔒: Represents a solution to a set of polymorphic constraints, expressed as the params of a function and the user-supplied args.
ReturnType
TableFuncPlan

INFORMATION_SCHEMA_BUILTINS
MZ_CATALOG_BUILTINS
MZ_INTERNAL_BUILTINS
MZ_UNSAFE_BUILTINS
OP_IMPLS: Correlates an operator with all of its implementations.
PG_CATALOG_BUILTINS: Correlates a built-in function name to its implementations.

array_to_string 🔒
coerce_args_to_types 🔒
current_settings 🔒
digest 🔒
experimental_sql_impl_table_func 🔒
find_match 🔒: Finds an exact match based on the arguments, or, if no exact match, finds the best match available. Patterned after PostgreSQL’s type conversion matching algorithm.
resolve_op: Resolves the operator to a set of function implementations.
select_impl: Selects the best implementation given the provided args using a process similar to PostgreSQL’s parser, and returns the ScalarExpr to invoke that function.
sql_impl: Backing implementation for sql_impl_func and sql_impl_cast. See those functions for details.
sql_impl_func 🔒
sql_impl_table_func 🔒
sql_impl_table_func_inner 🔒