Module helpers 

Functions

alias_visibility_warning

Emits a warning for unsupported alias usage in a SQL clause.

build_column_schemas_with_constraints

Build column schemas with constraint information from DDL column definitions.

canonical_name_from_object_name

Build a CanonicalName from an ObjectName without string round-trips.

canonical_type_from_data_type

Convert SQL data type to CanonicalType

check_expr_types

Checks an expression for type mismatches and returns any warnings found.

classify_query_type

Classify the type of a query

extract_column_constraints

Extract constraint info from column options (inline PRIMARY KEY, FOREIGN KEY).

extract_simple_name

extract_simple_name_from_object_name

Extract the simple (unqualified) name from an ObjectName.

extract_table_constraints

Extract table-level constraints (composite PRIMARY KEY, FOREIGN KEY, UNIQUE).

find_cte_definition_span

Finds the span of a CTE definition name in SQL text.

find_derived_table_alias_span

Finds the span of a derived table alias in SQL text.

find_identifier_span

Finds the byte offset span of an identifier in SQL text.

generate_column_node_id

Generate a deterministic column node ID

generate_edge_id

Generate a deterministic edge ID

generate_node_id

Generate a deterministic node ID based on type and name

generate_output_node_id

Generate a deterministic output node ID scoped to a statement.

ident_value

Get the unquoted value from an Ident.

infer_expr_type

Best-effort type inference for SQL expressions.

is_quoted_identifier

is_simple_column_ref

Check if an expression is a simple column reference (no transformation)

lateral_alias_warning

Emits a warning for unsupported lateral column alias usage.

line_col_to_offset

Calculates the byte offset for a given line and column in SQL text.

normalize_schema_type

Normalizes a schema type string to a canonical type display string.

parse_canonical_name

split_qualified_identifiers

unquote_identifier