Module write 

Write/admin MCP tool executors (Phase 9).

Functions

apply_ddl

Run DDL validated for Admin mode inside a transaction.

create_index_concurrently

CREATE INDEX CONCURRENTLY — must run outside a transaction.

edit_row

Structured insert/update/delete by primary key (parameterized).

execute_sql

Run validated SQL inside an explicit transaction; roll back on error or dry_run.

import_data

Batched INSERT from a JSON rows array.

run_maintenance

VACUUM / ANALYZE / REINDEX — cannot run inside a transaction.

terminate_query

Cancel or terminate a backend by pid.