Module compiler 

Lift a PostgreSQL parse tree into the internal Statement AST.

The facade exposes compilation while statement-family modules own validation and lowering. Tree-shaped SELECT/DDL/expression lowering remains in the private tree module, and PostgreSQL type interpretation remains in the private types module.

Structs

ParsedRegprocedureName

Parser-normalized routine name and optional exact input-type signature used by PostgreSQL’s regproc and regprocedure input functions.

ParsedRegtypeName

Parser-normalized type identity used by PostgreSQL’s regtype and regprocedure input functions. Components retain the parser’s distinction between aliases such as unquoted integer (normalized to pg_catalog.int4) and a quoted type named "integer". Modifier values do not participate in OID lookup; their presence is retained for declaration validation.

ParsedStatement

A syntactically valid statement retaining its exact source slice. Compilation is separate so an execution boundary can analyze statements in order after preceding commands have completed.

Functions

compile

parse_regobject_name

Parse the dotted identifier strings consumed by PostgreSQL’s reg* input functions. This follows SplitIdentifierString: surrounding component whitespace is ignored, quoted components collapse doubled quotes without case folding, unquoted components extend to a dot or whitespace and use ASCII case folding, and every component is clipped to PostgreSQL’s 63-byte identifier limit.

parse_regprocedure_name

Parse one routine-name string with either an omitted signature (regproc) or an exact signature (regprocedure). The caller owns the soft-error and cross-database policy because the two SQL input functions intentionally differ from ordinary DDL.

parse_regtype_name

Parse exactly one PostgreSQL type-name string without accepting adjacent SQL expressions. None is the soft-failure shape used for inputs such as an empty string or SETOF integer; lexical and type-name syntax errors are retained for the caller.

parse_statements

Parse an entire SQL message before exposing any statement for execution. PostgreSQL syntax errors reject the whole message; semantic compilation errors can be surfaced later, at the affected statement’s boundary.

plan_only_for_test

Lower DROP FUNCTION / DROP PROCEDURE. Each target arrives as an ObjectWithArgs; the argument type list (when spelled) is preserved as a typed signature because routine identity includes (schema, name, argument types).

resolve_deferred_create_foreign_table

resolve_deferred_create_table