Module postgres

Expand description

Postgres utilities for SQL purification.

Modules§

build_element_cast_expr 🔒: Build the element cast expression for container types (Array, List, Map, Range). The element expression operates on a single-column input row containing the text-encoded element at column 0.
generate_column_casts 🔒
generate_create_subsource_statements
generate_source_export_statement_values 🔒
map_column_refs 🔒: Map a list of column references to a map of table oids to column names.
pg_type_to_cast_func 🔒: Map a PG type to the corresponding CastFunc variant. Returns:
purify_source_exports 🔒: Purifies the requested external references, returning the purified source exports that correspond to external tables along with the additional fields needed to generate the relevant statements and update statement options.
resolve_pg_type_to_scalar_type 🔒: Resolve a PG type to its corresponding SqlScalarType via the catalog.
validate_requested_references_privileges 🔒: Ensure that we have select permissions on all tables; we have to do this before we start snapshotting because if we discover we cannot COPY from a table while snapshotting, we break the entire source.