datahike.pg.sql.assignment-target — org.replikativ/pg-datahike 0.1.386

Structural assignment targets shared by SQL analysis and write execution.

Bounds retain their ASTs until execution. An absent slice-bound key means omitted; a present SQL NULL expression remains an explicitly supplied bound.

*omitted-bounds* clj

Internal per-parse annotations keyed by owned target Column identity. Cached JSqlParser nodes are never mutated to restore omitted bounds.

bound-expressions clj

(bound-expressions {:keys [dimensions]})

Supplied bounds in PostgreSQL execution order: all upper/index expressions, then all lowers. Each entry names the slot to replace with its typed value.

describe clj

(describe column)

Decode a target Column without discarding its subscript indirection. The caller resolves the base column name/attribute in its own SQL scope.

partial-target? clj

(partial-target? target)

program-expression clj

(program-expression program)

Create a fresh owned AST placeholder and its private program binding. No placeholder or program is registered as a user-visible SQL function.

reject-partial-default! clj

(reject-partial-default! target expression)

DEFAULT has no PostgreSQL meaning as a subscript replacement value.

validate-duplicates! clj

(validate-duplicates! targets sqlstate)

Repeated partial targets are legal; a whole target cannot share its base column with another target. Call after canonicalizing :column or :attr.

value-oid clj

(value-oid target column-oid)

The RHS assignment type. Element targets take the array's element type; slices and whole-column targets take the complete column type.