id,page,ref,title,content,breadcrumbs,references
internals:internals-internal-schema,internals,internals-internal-schema,Internal database schema,"The internal database schema is as follows: 
                 [[[cog
from metadata_doc import internal_schema
internal_schema(cog) 
                 ]]] 
                 CREATE TABLE catalog_databases (
    database_name TEXT PRIMARY KEY,
    path TEXT,
    is_memory INTEGER,
    schema_version INTEGER
);
CREATE TABLE catalog_tables (
    database_name TEXT,
    table_name TEXT,
    rootpage INTEGER,
    sql TEXT,
    PRIMARY KEY (database_name, table_name),
    FOREIGN KEY (database_name) REFERENCES databases(database_name)
);
CREATE TABLE catalog_columns (
    database_name TEXT,
    table_name TEXT,
    cid INTEGER,
    name TEXT,
    type TEXT,
    ""notnull"" INTEGER,
    default_value TEXT, -- renamed from dflt_value
    is_pk INTEGER, -- renamed from pk
    hidden INTEGER,
    PRIMARY KEY (database_name, table_name, name),
    FOREIGN KEY (database_name) REFERENCES databases(database_name),
    FOREIGN KEY (database_name, table_name) REFERENCES tables(database_name, table_name)
);
CREATE TABLE catalog_indexes (
    database_name TEXT,
    table_name TEXT,
    seq INTEGER,
    name TEXT,
    ""unique"" INTEGER,
    origin TEXT,
    partial INTEGER,
    PRIMARY KEY (database_name, table_name, name),
    FOREIGN KEY (database_name) REFERENCES databases(database_name),
    FOREIGN KEY (database_name, table_name) REFERENCES tables(database_name, table_name)
);
CREATE TABLE catalog_foreign_keys (
    database_name TEXT,
    table_name TEXT,
    id INTEGER,
    seq INTEGER,
    ""table"" TEXT,
    ""from"" TEXT,
    ""to"" TEXT,
    on_update TEXT,
    on_delete TEXT,
    match TEXT,
    PRIMARY KEY (database_name, table_name, id, seq),
    FOREIGN KEY (database_name) REFERENCES databases(database_name),
    FOREIGN KEY (database_name, table_name) REFERENCES tables(database_name, table_name)
);
CREATE TABLE metadata_instance (
    key text,
    value text,
    unique(key)
);
CREATE TABLE metadata_databases (
    database_name text,
    key text,
    value text,
    unique(database_name, key)
);
CREATE TABLE metadata_resources (
    database_name text,
    resource_name text,
    key text,
    value text,
    unique(database_name, resource_name, key)
);
CREATE TABLE metadata_columns (
    database_name text,
    resource_name text,
    column_name text,
    key text,
    value text,
    unique(database_name, resource_name, column_name, key)
); 
                 [[[end]]]","[""Internals for plugins"", ""Datasette's internal database""]",[]